DE2121828A1 - Photographic film unit for the production of a finished photographic image, suitable cassette and photographic camera therefor - Google Patents

Description

f ■

April 26, 1971 PATENTANWÄLTE 7 STUTTGART l,

DR-INR WOLFF H BARTELS long stihsse si

UK.-IINV *. WULt-r, Π. BAKIELÖ, TELEPHONE. (0711) »6310 and 297295

DR. BRANDES, DR.-ING. HELD telex, 0722312 Dipl.-Phys. Wolff 21218 9

Our reference: 123 030 / 85O933kdk

Eastman Kodak Company, Rochester, New York State, United States of America

Photographic film unit for making a finished photographic image, suitable cassette and photographic camera

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The invention relates to a photographic film unit for the production of a finished photographic image with an image carrier having a photosensitive element which has a photosensitive first layer in which at the exposure of the image carrier creates a latent, developable image, as well as a second layer, which as Image-receiving layer for the latent image of the first layer after it has been developed by one contained in a container Developing substance is used, a developer element being assigned to the light-sensitive element of the image carrier, which contributes to the uniform distribution of the developer substance over the two layers of the photosensitive element. The invention also relates to such photographic film units which are stacked to form a film pack are summarized. The invention also relates to a cassette for receiving at least one photographic cassette Film unit or a film pack. Finally, the invention relates to a photographic camera which either for receiving a photographic film unit or for receiving a film pack or for receiving a cassette of the aforementioned type is suitable.

Film and camera systems of the above type are well known in the photography field. The development of the image carrier of such a known photographic film unit takes place after the exposure is complete and after completed assignment of the Entwieklerelement to the photosensitive Element usually such that the film unit between two opposing pressure hulls is passed through a developer distribution device, whereby the developer substance is pushed out of its container and between the photosensitive element and the

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Developing element in a layer of a certain thickness / uniform is distributed. The developer substance distributed in this way, for example a viscous developer liquid, penetrates then the layers of the image carrier of the film unit and causes a development of the photosensitive Layers. Finally, an imagewise distribution of dye or silver is formed on the image receiving layer or diffuses into it so that a finished photographic image is formed. The image receiving layer can thereby be arranged either in the photosensitive element or in the developer element.

In the case of the commercially available photographic film units of the type mentioned at the beginning, which are also known as "peel-apart" ~ Film units, i.e. peel-off film units, are designated, the photosensitive elements and the developer elements are kept separate from one another during the exposure and placed on top of each other for the development process. The image receiving layer is located in the developer element which, after development, is removed from the remaining part of the Film unit is peeled off and on which a right-hand legible photographic image is created. Photographic Film units of this type are for example in U.S. Patents 3,080,805 and 3,511,659.

There are also photographic film units known, which are also known as "pre-registered" or "integral" Filro units are called. In these known photographic Film units form the photosensitive element and the developer element, which are also sheet-shaped can be, a common, integral image carrier that is constantly aligned with one another. The developer element and the photosensitive element which have been aligned and placed on top of one another prior to exposure

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remain essentially even after development in the same assignment. The developer element is chosen to be transparent, so that an exposure of the photosensitive Material can be done from the "top" of the film unit. The image receiving layer is either in the developer element or, preferably, in the photosensitive element arranged to allow a positive photographic image to be formed without the remainder of the photographic film unit would have to be separated or stripped. Photographic film units of this type are, for example, in the French Patent specifications 2 006 255 and 2 006 256 as well as in German patent application P 20 52 145.3 (German patent specification ) described.

Photographic film units of the type just mentioned are also generally provided with a guide member, which facilitates handling of the film unit in a photographic camera. Such guide parts also serve often to connect several film units with each other, which are in a certain allocation or in one Stack can be combined to form a film pack. But at least in the case of the "peelable" film units mentioned at the beginning These .guide parts serve to hold the photosensitive element and the developer element together of each photographic film unit. Guide parts of the type mentioned are, among other things, in the two aforementioned US patents described in more detail.

The development of suitable integral photographic film units has one

has made significant progress in reducing many of the problems associated with "peel-off" film units were own. This applies in particular with regard to

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that with such film units first an assignment of the photosensitive element and the element carrying the image receiving layer by superimposing and then one Separation of the same was required. By creating the photographic film unit of integral construction however, numerous and often unexpected new problems have arisen. It should only be noted, for example, that it is relatively easy with 'the "peel-off" film units, the finished image or the finished copy of its guide part ^ dem Separate containers, a liquid trap for excess developer liquid and other material, which remains as waste after development. This separation is made even more by the moistened intermediate layer at the point of separation between the image receiving member and the photosensitive member. That damp intermediate layer results from the distribution of the liquid developer substance, for example, between these two Elements. In the case of the integral photographic film units, on the other hand, the finished photographic image remains permanent connected to the photosensitive element as well as the developer element, thereby separating the development The resulting waste material is much more difficult, since this separation is not at the of the distributed Developer substance formed moist intermediate layer can be made. Another disadvantage arises in that the operator often has no scissors or the like. And even if they had them, in the most of the cases would not know exactly how to develop the waste material from the finished photographic material Image must be cropped with sufficient accuracy, while maintaining a right angle, so that a finished one A photographic image of an appealing external shape is created. Another property of the integral photo-

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Graphic film units should be mentioned that these are relatively stiff and therefore have to be kept essentially in one plane during the development process and when they are removed from a photographic camera suitable for this purpose. It follows that any transport system for such a photographic film unit must be designed so that the film unit is not subjected to excessive twisting forces. To overcome these and other difficulties, for example, pre- • beaten to attach (US Patent 3,415,644), the container for the developing agent by means of an adhesive tape on the film unit which can be removed after the development for operation of the film unit.

The invention has for its object to provide a photographic film unit to-r producing a finished photographic image, which enables a particularly easy separation of the products obtained after the development of waste material from the actual image carrier and which as a result, their particularly advantageous construction, an easy handling of the photographic film unit in a suitable photographic camera.

This object is, starting from a photographic FiImeinheit of the type mentioned, according to the invention are known per se f DA

solved by that the image carrier with part of a / carrier tape is releasably connected, on which the container for the developer substance is attached and which with a free guide end adjoining this part for handling the film unit in a photographic unit suitable for this purpose Camera is used. Due to the detachable arrangement of the image carrier on the as a base and as a handle for the Film unit serving carrier tape and through the fixed connection

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binding of the container for the developer substance with this carrier tape is achieved that after completion of the development process separation of the waste material from development without any particular difficulty , so the carrier tape and the attached, meanwhile emptied container for the developer substance, can take place from the actual image carrier that carries the finished photographic image. The separation lets through simple peeling off or peeling, for example by a single handle, accomplish.

Preferably, there is also a liquid trap fastened to the carrier tape, in particular formed as part of the carrier tape, which is also used after the development process Accruing waste material belongs, together with the carrier tape, easily detachable from the actual image carrier. In order to facilitate this separation even further, it can be provided that the image carrier is resiliently stiff and that the carrier tape is less resilient and more flexible than the image carrier. As a carrier tape, for example a sheet of flexible material can be provided which extends substantially under the entire image carrier. This creates a perfect base for the image carrier and for the parts adjoining it, in particular for the container for receiving the developer substance.

The invention is also based on the object of a particularly expedient assignment of several photographic film units according to the invention to each other, for example in a stack forming a film pack. This Filmpack should enable production at low costs and easy handling. This task will

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solved in that the carrier tape of a film unit has an end part with the film unit following in the film pack is releasably connected. This connection of the film units to one another enables them to be carried out quickly one after the other Production of finished photographic images by means of a photographic camera suitable for this purpose, since during removal a ^ ildträgers from the camera already the subsequent photographic film unit of the Operator can be made accessible.

The connection between the film units can be chosen such that either the free leading end of the carrier tape the front end of a film unit with the rear end of the subsequent film unit in the film pack.

that
bar connects or ^ with a corresponding saving of carrier tape 'between successive film units, the free leading end of the carrier tape of a film unit, encompassing the container for the developer liquid, is folded over to the rear end of this film unit and is releasably connected to the front end of the upstream film unit in the film pack.

In a particularly advantageous embodiment it is provided that the carrier tapes of the film units of a film pack form sections of a single strip-shaped tape) the. Such a film pack is particularly suitable for a cassette or a photographic camera, each of which a collecting container, preferably a take-up reel, for the strip-shaped band, the attached containers for the developer substance and, if necessary, for the liquid traps, that is, have for all waste material generated after development.

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The invention is also based on the object of providing a cassette for receiving at least one photographic To provide film unit according to the invention or a film pack according to the invention, which is simple and convenient Handling enables. This task is, starting from a cassette 'for receiving at least one film unit or a film pack in a substantially closed interior of the cassette housing and with this interior on one side with the outside of the cassette housing connecting removal opening, solved in that in the vicinity the removal opening a guide device is provided which when removing a film unit from the cassette Image carrier along a first movement path and the carrier tape along a curved second movement path of a collecting device feeds. This greatly simplifies the production of finished photographic images, since only the integral image carrier passes out through the cassette, while that generated during development Waste material without the operator in any way would come into contact, automatically separated from the image carrier by means of the guide device and fed to the collecting container will. After all of the film units in the cassette have been exposed and developed, the cassette can then be put together be thrown away with the waste material. Becomes a If a film pack is used, the carrier tapes of which form sections of a single strip-shaped tape, then it is in the collecting container preferably a take-up reel for the strip-shaped Band provided.

Finally, the invention is based on the object of providing a photographic camera for recording at least one according to the invention Film unit or a film pack according to the invention in its interior, with this interior with

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the outside of the camera connecting removal opening and with a device for distributing the on the film unit to create arranged developer substance within the film unit, which is particularly expedient for this purpose is. This task is achieved in that near the

Removal opening a guide device is provided which When removing the film unit from the camera, the film unit is first fed to the developer distribution device and then the image carrier along a first movement path and the carrier tape along a second movement path that deviates therefrom leads to the outside through the removal opening. This enables the automatic separation of the image carrier from the Ensured carrier tape and ensured when using a film pack according to the invention, that the connection point is accessible between successive film units on the outside of the camera and is detachable there, without the image carrier being in the way, since this is along a path deviating from the path of movement of the carrier tape Trajectory is guided.

In a particularly advantageous embodiment one Photographic camera according to the invention can be provided that in the vicinity of the removal opening a guide device it is provided that when the transport device is actuated, the film unit is initially transferred to the developer distribution device supplies and then the image carrier along an alder movement path through the removal opening to the outside and feeds the carrier tape along a deviating second movement path to a collecting device. Through this structure it is achieved that only the image carrier can exit the camera through the removal opening, while the Carrier tape, without the operator coming into contact with it, is automatically separated from the image carrier and the collecting

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device is supplied. A removal of the in development There is no need for waste material for each photograph.

A photographic one that is particularly easy to design in terms of its structure Camera can * be achieved if it is intended to hold a cassette according to the invention, as this has its own collection container and a guide device, which separates the image carrier from the carrier tape enables, owns. A particularly symmetrical design of such a photographic camera can be achieved then achieve when a cassette is selected whose collecting device, preferably before their take-up reel, in which the removal opening facing away from the part of the cassette is provided.

The invention is illustrated in the following description with reference to the exemplary embodiments shown in the drawings individually explained.

Show it:

1 shows a perspective photographic film unit according to the invention, which has an image carrier composed of a photosensitive element and a developer element, a container for holding developer substance _/ a liquid trap for holding excess developer substance and a carrier tape on which all of the aforementioned parts are arranged are;

FIG. 2 is a plan view of the photographic film unit shown in FIG. 1;

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3 shows a relation to the respective size of the individual Components and with respect to their actual distance from one another exaggerated Cross section through a film unit according to FIG. 1;

FIG. 4 is a view similar to FIG. 1, in which it is shown how the image carrier which the finished photographic image, separated from the waste material generated during processing can be;

Fig. 5 is a schematic side view of the photographic film unit shown in Fig. 4;

6 is a schematically illustrated perspective view of the waste material produced during development; which is wound into a roll;

7 is a perspective view of a cassette according to the invention, in its cassette housing several photographic film units combined in a stack to form a film pack are arranged according to the invention;

FIG. 8 is a perspective and partially broken away view of a film pack according to FIG Invention;

Figures 9 and 10 are top and side views of each other lined up photographic film units which, when arranged in a stack, form a film pack form according to FIG. 8;

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11 to 14 schematically illustrated partial cross-sections by a cassette according to FIG. 7 accommodating a film pack according to FIG. 8 and various stages Removal of a film unit from the cassette and treatment of this film unit developer distributing means and guide means of a photographic camera;

Figures 15, 16 and 17 correspond to Figures 11 and 9 and 10 respectively Views of a modified embodiment of the assignment of several photographic Film units and their combination in a stack to form a film pack;

18 to 21 are partial cross-sections corresponding to FIGS. 11 to 14, in which a further modified Embodiment of a film pack and its removal from a photographic camera is shown;

22 shows a view corresponding to FIG. 8 of a further modified embodiment of a film pack according to the invention;

23 to 26 are partial cross-sections of a cassette corresponding to FIGS. 11 to 14 and 18 to 21, respectively a photographic camera to which the film pack shown in Fig. 22 is applied;

27 to 29 partial cross-sections corresponding to FIGS. 23 to 26, a modified embodiment of a film pack according to FIG. 22 being used; . ''

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30 shows a perspective partial view of several lined up photographic film units according to the invention which, after being folded up forming a film pack according to the invention;

31 shows a partial cross-section through a photographic one Film unit according to FIG. 30, with a free leading end of its carrier tape;

32 is a partial cross-section through a film unit

according to FIG. 31, the free leading end of the carrier tape in the fold for a film pack fe is shown;

Fig. 33 is a perspective view of the film unit shown in Fig. 32; '

Fig. 34 is a partial exploded perspective view of the film unit shown in Fig. 31;

FIG. 35 is an exploded and perspective view of a cassette shown wherein for a better understanding * is selected development according to the invention for receiving a pack 30 film formed from the film units shown in FIG, an exaggerated representation.

36 is a perspective view of the cassette according to FIG

35, the housing of which is shown partially broken away, in order to provide a collecting device for the expose waste material generated during development;

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37 is a partially broken away plan view of a photographic camera according to FIG of the invention, in which a cassette according to FIGS. 35 and 36 is inserted?

38 to 40 show an enlarged partial cross section through the photographic camera according to FIG Fig. 37, in which the winding of the waste material on a take-up reel of the collecting device and the separation of the waste material of the film unit from the image carrier and the discharge the image carrier from the camera is shown;

41 shows a partially broken away plan view of a modified exemplary embodiment a photographic camera according to the invention;

Figure 42 is a perspective view similar to Figures 8 and 22 of a film pack according to the invention;

FIG. 43 shows a perspective, partially sectioned, partial view of a separating device from FIG photographic camera according to Fig. 41, which the Waste material from the film unit from the actual image carrier that arises during development separates;

44 to 47 are partial cross-sections through the camera according to FIG. 41, with different stages of removal a film unit from the camera and the separation of the actual image carrier of the film unit depicted by the waste material;

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48 is a perspective view of a further embodiment of a photographic one Camera according to the invention and a cassette which can be inserted therein;

49 is a partially broken away plan view of the photographic camera according to FIG 48, with the cassette inserted therein;

49A shows a partial cross-section through a modified embodiment of the cassette according to FIG. 48, the cartridge carrying a portion of developer dispensing means;

50 shows a perspective view of the cassette according to FIG. 48;

51 is an exploded perspective view View of the cassette according to FIG. 50;

FIG. 52 shows an illustration of the structure similar to FIG. 34 a photographic film unit according to the invention; ■ ·

53 is a perspective view of a The photographic film unit shown in Fig. 52, which is shown partially broken away;

54 to 56 enlarged partial cross-sections of the Camera according to Fig. 49, in which different stages of winding up waste material of the carrier tape as well as the output of the actual image carrier of the film unit from the camera are;

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57 shows a partial cross section through a modified transport device of the camera according to FIG. 48;

58 and 59 show a perspective partial view and a partial cross section through a modified one Embodiment of a transport device in which a spring motor is used;

60 and 61 are partial views shown in perspective further modified embodiments of a transport device of the photographic camera, which are electrically operated.

Photographic film units for making finished photographic ones Images in a photographic camera suitable for this purpose are generally known. The following description is therefore limited essentially to the components that reflect the essence of the device or described of the device described. Components not shown or not described in detail can therefore be derived from the The number of suitable components available to those skilled in the art can be selected.

I.

In Fig. 1 is a first embodiment of a photographic Film unit 1 shown, which serves as a carrier tape sheet-shaped carrier 2, an image carrier 3, which in turn consists of a photosensitive element 4 and a developer element 5, a container 6 for a developer substance and a liquid trap 7 to absorb excess developer substance.

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The photosensitive member 4 and the developing member 5 are carefully tailored to the fact that they are leaf-shaped Create pieces with straight edges, right-angled corners, and useful edges. These two elements will be Carefully assigned to one another during manufacture so that they have a uniformly flat image carrier 3 with more appealing form the outer design, which retains its integral structure even after development. This image carrier 3 already has, apart from the more complex embodiment described in more detail below, which also a container for the developer substance, a liquid trap as well as a sheet-shaped carrier, all for development in a suitable photographic " phical camera necessary parts, which are constantly held together without affecting the finished photographic image. .

The image carrier 3 together with the container 6 and the liquid trap 7 are arranged on the sheet-shaped carrier 2, the latter with the image carrier for distributing a suitable developer substance between the two elements of the image carrier at one end or for collecting excess, between these two elements at the opposite end End of emerging developer substance are coupled. The sheet-shaped carrier is particularly for a simple and appropriate handling of the entire film unit 1, even in the first stages of its manufacture until the finished photographic image has been completed and removed during processing accumulating waste material. For this purpose, the sheet-like carrier serving as the carrier tape is essentially only closely associated with a single photographic film unit.

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However, it can also be coupled to other similar film units, which will be described later in a further embodiment. The sheet-like carrier also serves to fulfill various functions and has a sufficiently versatile structure for this purpose, which allows, for example, that the film unit can be easily aligned and positioned during production in a production line or in automated assembly racks, so that the transport of a film unit summarized by in a stack to form a film pack photographic film unit ^ei in the application of such a film pack in a photographic camera can be properly and that, finally, the sheet-shaped support along with other after development accumulated waste material, such as the container for the developing agent and the liquid trap rolled and can then be thrown away. These various properties are explained in more detail in the description below.

The container 6 and the liquid trap 7 are permanently attached to the sheet-shaped carrier, but with the image carrier 3 only detachably coupled. The image carrier is in a similar manner only 'releasably connected to the sheet-shaped carrier. the end the following will show in more detail that such a construction using permanent and detachable Connection points a separation of the image carrier, which carries the finished photographic image, from the sheet-like carrier, from the container and from the liquid trap. The last three components, which after the development incurred as waste material can be rolled up and thrown away in a package, the sheet-shaped carrier being the Container for the developer substance and the liquid

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trap encloses and ensures that any excess developer substance present in the waste material not with sensitive things or objects, for example with the clothing or the skin of an operator, can come into contact.

The liquid trap is preferably not only permanently attached to the sheet-shaped carrier, but is held by the latter actually included or formed by it itself. This allows the manufacturing process to continue simplified and reduced and the operation of the film unit can be improved during the development process.

Structure of the image carrier

In a preferred embodiment of a photographic film unit, the photosensitive element 4 has an im essentially flat, resilient support made of transparent cellulose triacetate film support, which has a front End lO, a rear end 11, side edges 13 and 15 and a central part 16 has. At least the middle part 16 carries different layers of image carrier material from opaque, light-reflecting material and a silver halide emulsion with this associated image dye-providing material. These layers are preferably in the arranged in the order specified, with the position of the transparent support in the vicinity of the outside or underside 17 (Fig. 3) is chosen where he can protect this side of the film unit ^ and where the position of the silver halide emulsion is chosen near the inner or upper side, where it in turn passes through the transparent developer element is covered and protected. The silver halide emulsion

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can be exposed from the top of the film unit through the developer element, while the developed photographic image can be viewed through the transparent support from the underside of the film unit .. -

The light-sensitive element also has a frame 20, indicated schematically in FIG. 2, which completely encloses the light-sensitive element in the edge regions. Such a frame lies a ^he sharply defined area from within which the latent image can be recorded and which preferably provides the framework for the finished photographic image in white color, which extends within its boundaries. The frames provided for the exposure and the finished photographic image are preferably of the same extent and aligned perpendicular to one another. However, they can also be produced in a wide variety of ways, including, for example, pre-exposure or photoresistive processes, using either a single layer of the film unit or in separate layers, each of the individual frames sharply delimiting each of the individual frames.

The developer element 5 is also preferably made of a transparent material such as a cellulose triacetate film carrier. The developer element forms a resilient, substantially flat sheet which has a front and rear end, side edges and a central part which correspond to the associated parts of the photosensitive element. In order to avoid an excessive accumulation of reference numbers in the drawing, no separate reference numbers have been used for these corresponding parts of the developer element and thus the film unit. It will be understood, however, that the parts mentioned are aligned and that on them

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by the reference numbers provided for the photosensitive element Can be referred to because the same or similar designations have been chosen for them. Additionally on its property of being able to distribute the developer substance in the manner described in more detail below and protects the transparent sheet-shaped developer element the top of the photosensitive element and the film unit, but leaves the above-mentioned exposure of the Silver halide emulsion.

The photosensitive element 4 and the developer element 5 are preferably ^{chosen at right angles in their dimensions e} ^ in each other and are held together with mutual assignment, for example by placing and aligning their surfaces, by a permanent closure 21 or such a permanent connection to form the image carrier 3 . This bond can be formed using a pressure-reactive cohesive material which is coated on both the photosensitive element and the developer element. Further satisfactory connections can be achieved by closures which can be produced by heat or shuttering effects or by adhesive material which is applied either to one of the two elements or to both the photosensitive element and the developer element. The mentioned connection point preferably extends in the longitudinal direction along the side edges of the film unit from its front to its rear end. The connection achieved should also be sufficiently impermeable to the developer substance so that it cannot escape prematurely at the side edges of the film unit during the development process.

Regardless of the choice and type of connection

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place or their particular application are the light-sensitive Element and the developer element essentially in mutual direct contact or one for this equivalent shape at their lateral edge areas connected to one another in such a way that the central parts of the elements are arranged one above the other with mutual 'assignment. The front and rear ends 10 and 11, respectively, are, however preferably, which is described in more detail below, can be separated from one another with elastic deformation, so that the developer substance can flow between the two elements at the front end and thus between the two elements any excess emerging at the rear end Developer substance can be accumulated at this rear end.

Photographic film unit

The image carrier described above, which is the photosensitive Element 4 as well as the developer element 5 is particularly suitable in connection with various components the larger film unit 1 with which it is shown. In addition to the image carrier, the film unit has, as already mentioned, the sheet-shaped carrier 2, the container 6 for the developer substance and the liquid trap. 7 for the excess Developer substance. All of these components contribute to the recording and development of a latent image when the photographic film unit is used in a suitable photographic camera.

The liquid trap has one or more spacers 41, which on an edge part 43 at the rear end of the sheet-shaped carrier are fixedly arranged so that any developing agent emerging at the rear end of the image carrier 3

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substance can be caught. The spacers are essentially incompressible and interact with the carrier so together / that they form suitable boundary surfaces, which preferably a chamber or a cavity completely enclose the self between the printing bodies of a decelerator manifold and a photographic Camera is retained. A more detailed description of the operation of such spacers is in U.S. Patent 2,686,717. The liquid " trap is preferably, with the exception of the spacers, from the rear end of the sheet-shaped carrier by folding over this end and by grasping the spacers and the rear end of the image carrier 3 is formed. This form of the liquid trap is described in more detail below, in connection with the sheet-shaped carrier.

The container 6 for the developer substance has various interacting parts, which in their entirety form a suitable supply and supply device for the developer substance and which preferably one have splittable container part, which essentially

45

forms a rectangular cushion / made of a vapor-impermeable material which is folded along a first end face 47 and is tightly closed along its end portions 49 and 51. Opposite the first end face 47 is a second end face 53, which has a closure over substantially its entire length, which can be opened and thereby allows the developer substance contained in the container to flow out when hydraulic forces are applied, which then arise when the container between two pressure bodies forming a passage gap for the film unit, for example Pressure rollers (see Figs. 1 to 15) of the developer distribution device mentioned be passed through. The loading

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holding part is coupled to the front end of the image carrier so that its contents between the photosensitive Element and the developer element can be distributed. For this purpose, the container has an outlet funnel 57, which in a cavity or a slot between the photosensitive element and the Enttiricklerelement am the front end of the image carrier engages *

The sheet-shaped carrier 2 has a strip-shaped band made of a flexible material, which is in the desired Shape can be cut out as a single piece. The illustrated embodiment and design allows an individual Manufacture of photographic film units, independent of other such film units, and is in in a particularly advantageous manner useful in on-line or automated manufacturing Assembly. For example, it should only be pointed out that the sheet-shaped carrier in the expanded state on a flat vacuum table can be held and that the various with the carrier cooperating components, such as the image carrier 3, the container 6 and the Spacers 41, then in a suitable manner on the spread surface of the sheet-shaped support to the designated places can be arranged. After this operation, the edge part of the carrier is attached to its rear End folded over the spacers and the rear end of the image carrier 3, whereby the liquid trap is closed and the manufacture of the photographic film unit is completed.

The sheet-shaped carrier 2 can also serve to connect different photographic film units, which, what

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to be described in more detail below, for example, be combined in a stack to form a film pack. The carrier 2 also serves to handle such photographic film units in a cassette or photographic camera, which will be explained in more detail below. The sheet-shaped carrier can be used for this purpose be folded in almost any manner in one or more places along its free leading end 59, so that suitable attachment to other photographic film units and a more compact, i.e. shorter, Allocation of several film units is made possible. One and the same photographic film unit can be of various types Can be summarized in a simple and complex manner without significantly altering the film unit itself would be necessary, unless such a change were perhaps in the manner of the folding or in the manner in which one or more additional end portions of the film unit are attached.

The carrier is preferably cut from a roll on which coated paper is wound. Such a thing Paper must be pliable and easy to fold, but tear or break even after long periods of storage successfully resist. The paper must also have "tensile strength" and a protective layer, which Repels liquids, such as the developer substance, as these reduce the resistance of the paper could. This coating also improves the function of the carrier in that it improves its coefficient of friction thereby improving its ability to slide on, for example, other similar photographic film units of a film pack. The sheet-shaped carrier

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should have some elasticity, but not be stiff or so elastic that it is in conflict into a tightly packed and compressible layer in the folded State. Finally, a large number of different adhesives, cohesives and, for example, under the action of ultrasound or heat, adhesive joints can be applied so that various components can be connected to the carrier in either a permanent or a detachable manner.

In addition to its free guide end 59, the sheet-shaped carrier has a second end part 61 and one as a support serving middle part 63. The length of the free leading end 59 depends on various factors, for example also depends on the manner in which the photographic film units are connected to one another in a film pack should. In the embodiment shown in connection with FIGS. 1 to 6, the sheet-shaped carrier is suitable for connection to the support of another similar photographic film unit near the free leading end of that other film unit. The free leader of the sheet-shaped carrier protrudes for this purpose the rectangular cushion of the container 6 by a piece that is approximately the Corresponds to half the length of the photographic film unit (see Fig. 3). Should be the free leading end of a film unit be connected to the rear end of another film unit, then the free leading end 59 can around the required Amount to be extended or it can preferably be provided that. an additional end part the effective Length of the free end of the guide extended.

Serving as a support middle part 63 of the leaf-shaped

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Carrier is with suitable glue points 65, 67, 69 and 70 (see Fig. 2) provided, which, for example, using adhesives, cohesive agents or under Closures produced by the action of heat or ultrasound are formed so that the image carrier 3, the container 6 and the liquid trap 7 can be attached to the sheet-shaped support. The splices can be made using an adhesive are formed, which is only on the sheet-shaped carrier or only on the container, the image carrier and the liquid trap is applied. Preferably, however, and in particular with regard to the Container and the liquid trap, a cohesive agent is used, which is applied to both the sheet-shaped carrier as also the two components that are attached to it is applied. A particularly beneficial effect will be achieved when a cohesive agent is used that, once applied, only with the same or a similar cohesive agent forms an adhesive bond. In this way, the cohesive agent can be applied to the different points of the photographic film unit already at a different production point and sometimes already be applied at an earlier stage of production than at the production site and in the production stage in which is the actual assembly of the individual components to form the photographic film unit. the different components can then be handled together with the applied cohesive agent without special Precautions would have to be taken to prevent the components from sticking to the devices for their handling to prevent. If, on the other hand, the components are assembled in the intended arrangement, the cohesive agent reacts on each of the components in contact with each other immediately and

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connects these two components to one another in a suitable manner, i.e. in the case of the image carrier in a detachable manner, in the Trap the container and the liquid trap in a permanent manner.

The adhesive points used for the connection can be on the entire contacting surfaces of the components or only on a part of these surfaces can be provided. With regard to the container and the liquid trap, becomes a cohesive agent preferably applied to a substantial portion of the contacting surfaces to provide a permanent bond to ensure. In the case of the image carrier, on the other hand, the cohesive agent is only applied over narrow partial areas of the " applied to surfaces in contact with one another in order to facilitate the stripping process., In addition, it can be provided that an edge or corner part 71 (see Fig. 4) is left free and remains separated from the sheet-shaped carrier, so that the edge or corner part grasped by the operator and the pulling or stripping of the image carrier 3 from the rest of the photographic film unit 1 after development can be lightened.

The liquid trap can be partially / as already mentioned, formed by a section of the sheet-shaped carrier itself will. In this case, the sheet-like support itself provides the necessary connection, so that no special Bonding points are required, which, as described above, are made using adhesive, cohesive agents, etc. would have to be formed, except for the connection of the spacers 41 to the sheet-shaped carrier.

The container 6 and the liquid trap 7 are also soluble

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bar connected to the image carrier 3. However, such a connection is preferably only functional. Foregoing Lips 73 of the container 6 or its outlet funnel 57 can for example be between the photosensitive element 4 and the developer element 5 be inserted at the front end of the image carrier, while the rear ends the photosensitive element and the developer element can be inserted between comparable protruding lips 75 of the liquid trap. In one of those Trap no adhesives, cohesive agents or additional locking means are required.

The rear second end part 61 of the sheet-shaped carrier 2 is turned over to the front and covers the "spacers with the formation of the liquid trap. This turned over part of the carrier also engages around the rear end of the image carrier 3 and acts with the vertically aligned one Area of the unfolded part of the sheet-shaped carrier together in such a way that the aforementioned protruding lips arise, between which the rear end of the image carrier is used.

The photographic film unit described above is suitable for recording in a photographic camera which has a Has developer distribution device, which in turn is graduated Pressure body, for example pressure rollers, possesses (see Fig. 41). Run during the development process the stepped flange parts of the pressure hulls on the edge areas of the photographic film unit when this film unit is pulled through between the pressure bodies, while the middle part of this pressure body simultaneously ensures that the container for the developer substance is broken open and that the developer substance is

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moderate layer is distributed.

When the liquid developer substance is squeezed out of the container and is distributed between the photosensitive element and the developer element, then separating the through the Developing substance, hydraulic forces caused the elastic elements in their central parts from each other and force these together with the sheet-shaped carrier into contact with the central parts of the pressure bodies. The depth of the central recess in the pressure hull determines the distribution of the developer substance in a layer with suitable Initial thickness, which is selected to be approximately 0.08 mm. As the thickness of the photosensitive element, the developer element and the sheet-shaped support automatically for contact between the shoulder parts of the pressure bodies and calculated within the limits of the photographic film unit, it has been found that the required initial thickness is then can be achieved if each of the pressure bodies is provided with a recess, the depth of which is approximately 75% of the desired Layer thickness of the developer substance is.

During the distribution of the developer substance, it immediately starts the various layers of the photosensitive element to penetrate and thereby triggers the development process in a way that will be described in more detail below shall be. In addition, various components of the developer substance including water begin by the photosensitive member and the developing element to escape or dissolve completely or in any other way between the photosensitive element and the To penetrate the developer element to the outside into the ambient air, which ultimately leads to a drying of the developer substance leads. The developer substance has only a very small amount

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Percentage of solids, i.e. less than 5%, during the rest of the developer substance, essentially water, over time, i.e. within a few hours, between escapes from the photosensitive element and the developer element. This reduces the forces which the photosensitive element and the developing element learn from each other keep separate. The elasticity of the two elements brings about renewed mutual contact when they return. At this point in time, the image carrier again has its original, uniformly flat shape. Because this image carrier 3, as already mentioned, can be peeled off or peeled off from the sheet-shaped carrier, is also a finished photographic image achievable, which in its dimensions and in its structure completely with the original chosen structure, which is characterized by exact Cutting and joining of the parts to the picture carrier at the time of manufacture resulted.

The way in which the image carrier 3 differs from the rest of the photographic Pilm unit 1 can be peeled off or peeled off separately, which usually happens when the developer substance has been distributed between the elements of the image carrier can best be seen in Figs. In connection with Fig. 4, one of the possible methods of separating the image support from the rest is the photographic one Film unit shown in which the sheet-shaped carrier is gripped and down at its ends along a side edge is turned. The photosensitive element 4 as well as the developer element 5 preferably have an essential one greater elasticity than the sheet-shaped support. They therefore tend to maintain their substantially flat condition. The forces resulting from the aforementioned turning of the

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leaf-shaped carrier downwards, lead to that the container is withdrawn from between the photosensitive element and the developer element and that the latter Elements pulled out of the liquid trap in a similar manner will. As a result of the releasable connection selected between the image carrier 3 and the sheet-shaped carrier 2 In addition, an edge or corner part of the image carrier 3 is also separated from the sheet-shaped carrier. The image carrier can thus also captured at this corner part and completely detached from the carrier so that the finished photographic image can be viewed.

Should the above-described bending of the carrier downwards not result in a separation of the container of the liquid trap and the sheet-shaped carrier can lead from the image carrier or should this type of separation not be desired, then the operator can put a fingernail or other object between the image carrier and the sheet-shaped Slide the carrier at the non-fastened corner part 71 in between, grasp the image carrier and the components of the photographic Separate the film units roughly as described above, but more effectively.

The container and the liquid trap remain connected to the sheet-shaped carrier after the separation process and can be wound into a roll in the manner shown in FIG the clothing or skin of the operator is effectively protected against the developer substance. This roll, which contains all waste material generated during development, is preferably thrown away immediately. However, you can also temporarily in a pocket or drawer be kept without to this damage is to be feared.

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II.

7 and 8, a cassette 101 is shown which has a cassette housing 103 which is for receiving a Film packs 105, which are made up of integral photographic film units 107 consists, and a cover sheet 109 is used.

The construction of a photographic film unit 107 is the same as that described in connection with Figs photographic film unit. Each of the photographic film units 107 accordingly has a carrier tape serving as a carrier tape sheet-shaped carrier 111, a narrower than this formed image carrier 113, which in turn consists of a light-sensitive element 115 and a developer element 117, a container 119 for a developer substance and a liquid trap 121 for receiving excess developer substance. The film pack 105 may per se any number, but for example eight »photographic Film units 107 included. To simplify the description, however, the film pack is only provided with three of these photographic ones Film units shown in the figures. In addition, the reference numbers generally only relate to the middle one of the illustrated photographic film units as the first and last photographic film units may have a slightly different construction for reasons which will be described in more detail below.

The photosensitive member 115 and the developing member 117 are carefully coordinated to be sheet-shaped Parts with straight edges, right-angled corners, and. expedient Form margins. These two elements are carefully matched during manufacture so that they form a uniformly flat image carrier 113 with an attractive external shape, which is its integral structure

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maintains even after development. This image carrier 113 already has all for a development in one for this suitable photographic camera necessary parts, which are constantly held together without the finished product photographic image would be affected.

The image carrier 113 together with the container 119 and the liquid trap 121 are on the sheet-shaped carrier 111 arranged, the latter with the image carrier for distributing a suitable developer substance between the two Elements of the image carrier at one end or to collect excess between these two elements are coupled at the opposite end of emerging developer substance. The sheet-shaped carrier is in particular for easy and convenient handling of the whole Film unit 107 suitable, even in the first stages of its manufacture up to the completed manufacture of the finished photographic image and the removal of waste material from processing. To this The purpose of the sheet-like carrier serving as the carrier tape is essentially only a single photographic film unit closely associated. However, it can be used with other similar film units in the manner further described below be coupled.

The container 119 and the liquid trap 121 are permanently attached to the sheet-shaped carrier, but with the image carrier 113 only detachably coupled. The image carrier is connected in a similar manner to the sheet-shaped carrier 111 only in a detachable manner. Such a construction using permanent and releasable connection points enables In the manner described above under I, a separation of the image carrier, which carries the finished photographic image, from

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sheet-shaped carrier, from the container and from the liquid trap. After development, the latter will fall three components also as waste material and can be used in the manner described in connection with Fig. 6 without damage * wound into a roll for the operator and be thrown away.

The image carrier 113 of the photographic film unit 107 corresponds in its structure the image carrier 3 of the photographic film unit 1 (see FIGS. 1 to 3), so that on the description of the image carrier 3 in Section I can be referred to.

The entire construction of the photographic film unit 107 is also identical to the construction of the photographic film unit 1 match. Section I with its descriptive part "Photographic film unit" can therefore be consulted for a better understanding will. It should be noted, however, that the components of the photographic film unit 107 have different reference numerals from the components of the film unit 1.

The liquid trap 121 of the photographic film unit has one or more spacers 131 which are fixed on an edge portion 133 at the rear end of the sheet-shaped carrier are arranged so that any developing substance escaping at the rear end of the image carrier 113 are collected can. These spacers are also essentially incompressible and cooperate with the carrier 111 in such a way that they form suitable limiting surfaces, which are preferably a Completely enclose a chamber or a cavity which is itself between the pressure bodies of the developer distribution device, for example the pressure rollers 134 (compare FIGS. 11 to 14),

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a photographic camera is maintained. A more accurate one A description of the operation of such spacers is given in US Pat. No. 2,686,717.

The sheet-shaped carrier 111 consists of a strip-shaped one Tape of flexible material, made from a cut sheet of the desired shape or cut from several Sheets which when assembled give the desired shape is formed. This sheet-shaped carrier either serves alone or in connection with various additional end parts, which will be described in more detail below, for connection various photographic film units 107 in the film pack 105 or in the cassette 101. The sheet-shaped support 111 also serves to handle such film units in the cassette 101 or in the one indicated by the reference number 135 photographic camera. For this purpose, the sheet-shaped carrier can be attached to a or multiple locations along its free leading end 137 for suitable attachment to others Photographic film units can be made and a more compact, i.e. shorter, juxtaposition of several film units is made possible. One and the same photographic film unit can be both simple and in various ways can be summarized in a complex manner without a significant change in the film unit itself being necessary, unless such a change might be in the manner of folding or in the manner of fastening one or more of the additional end parts mentioned above. . , -

The sheet-shaped carrier 111 has in addition to its free leading end 137 a second end part 139 and a middle part 141 serving as a support. The length of the free guide

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end 137 depends on various factors, including the manner in which the photographic Film units 107 are to be connected to one another in a film pack 105. The middle part 141 serving as a support of the sheet-shaped carrier 111 is, like the middle part 63 of the film unit 1 (see FIG. 1), with suitable gluing points provided so that the image carrier 113, the container 119 and the liquid trap 121 in the manner described above on the sheet-shaped carrier can be partly permanently partly releasably attached.

The processes involved in the distribution of the developer substance between the photosensitive element 115 and the developer element 117 of the image carrier 113 and the development initiated thereby of the image carrier corresponds to the processes described above in Section I under "Photographic Film Unit", so that reference is made to it.

Film pack and cassette

The film pack shown in Figs. 8 through 11 is composed of a plurality of photographic film units 107 and one Connection system together, which connects the free leading end of a film unit with the rear end of an adjacent, connects upstream film unit in the film pack. In the following description, the film pack is essentially described in connection with the middle photographic film unit. However, certain film units will if required by adding "a", "b" and "c" to the reference numbers differentiated. These additions relate to the first or the middle or the last of the Film units, whereby it is assumed that a film pack, as already mentioned, not only consists of three film units, but for example from eight such film units

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consists. The connection system between the individual film units is, as already mentioned, by extensions or free leading ends of the respective sheet-shaped carrier or, however, preferably determined by one or more additional end parts, which with the respective free leading end a sheet-shaped carrier are connected. The connection between the film units is chosen in such a way that that when these film units are removed from the film pack, the following is automatically effected: First a removal of the free one takes place together with this removal End part of the subsequent film unit from the film pack and, secondly, the automatic stripping or severing this end part from the previous film unit taken out of the film pack. Will the film pack in a photographic Camera used, which has two pressure bodies forming a passage gap for the film unit, then When a film unit is removed through the passage gap, the free end part of the subsequent one automatically becomes Film unit threaded between this pressure body in such a way that the end part at least partially through a Removal opening of the photographic camera reaches the outside and there for a transport of the next film unit can be detected through between the pressure bodies.

7 to 10 it can be seen in more detail that the connection system between the film units the carrier 111 or at least its free leading end 137 and an additional one Intermediate part 151 comprises which at one end 153 with the rear end 139 of the sheet-shaped carrier a Film unit and at its other end 155 to the free leading end 137 of the sheet-shaped carrier of the adjacent, subsequent film unit is connected. The additional intermediate part 151 can be used as part of one of the two film units can be seen with which .er is connected. In the

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However, it is assumed that this additional intermediate part forms part of the following description Forms film unit with which it is most securely connected. This will be evident from the description below closer.

The connection point at the first end 153 of the additional intermediate part can be achieved in any desired manner. Preferably it is a non-detachable or sufficiently strong connection point so that the intermediate part as a permanent part of the sheet-shaped carrier on this remains attached. The connection point at the second end 155, on the other hand, is selected in such a way that it is at the appropriate time by detaching or stripping the end 155 * from the next sheet-shaped carrier can be solved. To this end, the second end 155 is to form a "peel" connection provided with an opposing flap or folded back near the junction until the folded part touches the unfolded part. This compound, which contains a suitable adhesive, is also in the vertical direction of sufficient strength so that the connection during transport of the free leading end of the subsequent sheet-shaped carrier within of the film pack and when it is removed from it remains intact. The compact condition of the film units also contributes to this within the film pack, which this releasable connection does not have sufficient vertical clearance to Provides, so that the connection point in its usual way. Could solve, as well as the additional Material in, which results from the folded back free leading end of the sheet-shaped carrier and which can be moved out of the film pack without significant frictional resistance. After this free leadership end

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but pulled out of the film pack and between the pressure hulls of the photographic camera used here has been threaded, the additional space becomes free perpendicular to the sheet-shaped carrier. The two neighboring ones The intermediate part connecting film units to one another is now completely withdrawn from the film pack been. The resistance suddenly counteracting the movement of the free end of the guide that spreads through the connection of the free leading end with the following Film unit results, and the two reasons mentioned above together bring about an increase in the Connection acting tensile forces. The connection can only be exposed to relatively low tensile stresses and loosens therefore through a separation or peeling process with increasing Tensile forces. In this way, the free leading end is accessible outside of the photographic camera, where it can be detected so that the subsequent film unit can be removed from the film pack and the photographic camera can be.

In the embodiment shown in the figures, the releasable connection is provided at a point on the intermediate part whose distance from the rear end of the previous image carrier corresponds approximately to the length of this image carrier 113 and which lies vertically below the front end of this image carrier. Similarly, the distance of this connection from the front end of the subsequent image carrier is selected such that this distance corresponds approximately to twice the length of the container 119 for the developer substance and its outlet funnel. These lengths were chosen such that the intermediate part on the one hand cannot be moved through between the two pressure bodies in front of the upstream film unit, but that , with the exception of the parts

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of the sheet-shaped carrier before the subsequent image carrier can be passed completely between the pressure hulls and that on the other hand only a relatively short end piece of the intermediate part or the sheet-shaped carrier of the subsequent film unit remains, which after the Separation protrudes from the photographic device at the detachable connection point.

The width of the intermediate part 151 is selected to be somewhat smaller than the width of the other components of the photographic Film unit, so that the winding of the intermediate part into a roll when it is removed from the film pack is easier can and thus the frictional forces can be reduced when it moves in the film pack and passed between the pressure bodies will. There is no point that the width of the intermediate part would be a critical size. This width of the intermediate part is preferably less than that which is recessed Middle part of the pressure hull chosen. The thickness of the intermediate part should be chosen to be sufficiently thin, so that it can be moved through between the pressure bodies without, in the case of the pressure rollers 134, closing them to rotate bring or in the case of non-rotatable pressure hulls exposed to excessive frictional contact between the pressure hulls to be. In this way, the intermediate part, while it is located between the pressure hulls, can be transverse to it Move direction of movement and thereby enables precise alignment of the photographic film unit directly before they enter the gap between the two pressure hulls.

The cover sheet 109 serves as a protection for the film units against premature exposure. This cover sheet can be used with the first or top film unit in any one Way to be connected. In the illustrated embodiment

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game, however, a releasable "peel" connection was chosen, which is similar in structure to the releasable connections described above and is only in the selection of the Connection point differs from these. The connection point was chosen from the point of view that after the Removal of the cover sheet will reduce the remaining waste material.

Reference is now made to Figures 11-14, in which the operation of the preferred embodiment is illustrated is. In order that the cassette can be precisely positioned in the photographic camera 135, the rear cover is 181 µm a hinge 183 pivotable and movable away from the front housing part 185 of the camera. The back cover 181 and the front one Housing parts 185 of the camera are separated from one another along a dividing line 187 in such a way that when the camera rear cover is opened one of the two pressure bodies from the other pressure body and from a separating body 189 of a guide device the photographic camera is disconnected. In this opened state, the cassette containing the film pack can be inserted into the photographic camera with the free end of the cover sheet 109 protruding from the cassette. If the rear cover 181 of the camera is closed, the two pressure bodies take a position on opposite sides Pages of the cover sheet, while the free end of the cover sheet from a first outlet slot 191 of the Camera protrudes where it can be detected for removal of the cover sheet through the outlet slot 191 from the camera. The effect of the separating body 189 and of the outlet slot 191 will be explained in more detail below in connection with FIG. 41 to 47 described in more detail. Another embodiment of a guide device for guiding photographic film units from a camera is also related below

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with FIGS. 23 to 29 described in more detail.

The cassette is prepared for a first exposure by that the free end of the cover sheet 109 is grasped and that thereby the cover sheet between the pressure bodies through pulled out of the camera. When the cover sheet is removed from the camera, the free leading end moves of the leaf-shaped support lilac together with this, becomes threaded between the two pressure bodies and through the first outlet slot 191 into the position shown in FIG brought. In its folded state shown in Fig. 11, the free leading end of the sheet-shaped carrier delivers purple sufficient additional material to convert to that shown in Fig. 12 without significant frictional resistance Position to be able to move freely. However, after this position has been reached, the excess has become Material used up, with a significant additional resistance opposed to movement through the first film unit 107a will. This additional resistance can come from the compact arrangement of the film pack in the cassette itself originate or supplemented by means of a detachable connection between the rear end of the film unit when breaking and the cassette housing in the manner known to those skilled in the art. In any case, the "increased resistance is sufficiently large, to cause a separation of the cover sheet from the free leading end of the sheet-shaped carrier. This is in FIG. 12 shown.

The first film unit is then exposed, pulled out of the film pack and placed between the two pressure bodies passed through. This is done in such a way that the operator grasped the free leading end of the sheet-shaped carrier purple and pulls it. As soon as this sheet feed

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- 45 -

Mige carrier is withdrawn, follow the container 119a, the Liquid trap 121a, the additional intermediate part 151a and the free guide end of the subsequent sheet-shaped Carrier 111b the first sheet-shaped carrier purple in the passage gap between the pressure rollers 134 and through the first outlet slot 191 to the outside - the image carrier of the film unit, as already mentioned, is separated from the rest. Waste material produced during development is separated when removed from the camera and essentially along a straight guide through a second outlet slot 193 from the inside of the camera to the outside. The image carrier 113 can be pushed out of the camera completely or only until its rear end passes through the second Outlet slot 193 formed guide reached. In this position, the image carrier can by means of a retaining spring 195 so be held detachable for a long time until the operator of the photographic camera wants to remove the image carrier. Of the sheet-shaped carrier, the container, the liquid trap and the additional intermediate part can then form a roll 6 and thrown away as shown in FIG. The image carrier, on the other hand, is derived from that which arises during development Waste material kept separate and without further action by the operator of the photographic camera developed into a finished photographic image.

A first modified embodiment of the in connection 7-14, the cassette and the film pack contained therein is shown in FIGS. 15-17. This exemplary embodiment agrees in essential features with the exemplary embodiment according to FIGS. 7 to 14 match. The features that correspond to the previously described features have been replaced with the same by a Exponents referred to and are extended reference numbers

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not described in more detail below.

This modified first exemplary embodiment differs from the previously described exemplary embodiment in FIG primarily through the elimination of the additional intermediate part 151 and through the replacement in form provided for this an extended end portion 197 of the sheet-shaped carrier, which the rear end of a film unit with the free Connects leading end of the subsequent film unit. This extended end portion 197 is similar to that of that previously described embodiment by stripping or peeling off with the free leading end of the following sheet-shaped carrier releasably connected via a "peel" connection 199, which has the same properties such as the previously described connection provided at the end 155 of the intermediate part .15.1. The extended end portion 197 has also, unlike the intermediate part 151 of the previous embodiment, substantially the same width as the other parts of the sheet support and the image support.

In connection with FIGS. 18 to 21, there is a second modified one Embodiment shown. Many of the features of this embodiment are consistent with the im Connection with FIGS. 7 to 14 shown embodiment and are therefore given the same reference numerals referred to, which, however, are chosen by the number one hundred higher. In a departure from the previous exemplary embodiments, the film units are one below the other in the film pack connected to one another via an extended end part which is formed by the sheet-shaped carrier itself and which is connected to the rear end of the film unit in front of the film pack. The releasable connection is

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also provided at the rear end of the film unit in front of the film pack and not, as described above, vertically below and near the front end of the image carrier. The connection 305 between the cover sheet and the first film unit is therefore also provided at the rear end of the cover sheet. These releasable connections 303 However, all other features and 305 are essentially the same as the releasable connections described above match.

III.

A modified embodiment of a film pack 405 is described in connection with FIGS. 22 to 29, which is suitable for receiving in a cassette according to FIG. The reference numbers are corresponding to one another Parts selected by the number three hundred higher than in the embodiment described above in Section II. The film pack 405 is accordingly used for receiving in a cassette 401 which has a cassette housing 403. The film pack 405 consists of integral photographic film units 407 and a cover sheet 409.

The construction of a photographic film unit 407 is the same as that described in connection with Figs photographic film unit. Each of the photographic film units 407 accordingly has a tape serving as a carrier tape sheet-shaped carrier 411, an image carrier 413 which is narrower than this and which in turn consists of a light-sensitive element 415 and a developer element 417, a container 419 for a developer substance as well as a liquid trap 421 for receiving excess developer substance. The film pack 405 can be a

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any number, but preferably eight, photographic film units 407 contain. To simplify the description however, the film pack is shown in the figures with only three of these photographic film units. the In addition, reference numbers generally refer only * to the middle 'of the illustrated photographic film units, since the first and last photographic film units may have a slightly different construction, for reasons which are to be described in more detail below,

The photosensitive member 415 and the developer member 417 are carefully designed to have sheet-shaped parts with straight edges, right-angled corners, and convenient To form edges. These two elements are carefully matched during manufacture so that they a uniformly flat image carrier 413, with an attractive external shape, which forms its integral structure maintains even after development. This image carrier 413 already has all for a development in one for this suitable photographic camera necessary parts, which are constantly held together without the finished product photographic image would be affected.

The image carrier 413 together with the container 419 and the liquid trap 421 are arranged on the sheet-shaped carrier 411, the latter with the image carrier for distributing a suitable developer substance between the two Elements of the image carrier at one end or to collect excess between these two elements are coupled at the opposite end of emerging developer substance. The sheet-shaped carrier is particularly for a simple and expedient handling of the entire film unit 407 is suitable, even in the first stages its production up to the completed production of the

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finished photographic image and removal of processing waste. To this end The sheet-like support serving as the carrier tape is essentially only a single photographic film unit closely associated. However, it can be coupled to other similar film units in the manner further described below be.

The container 419 and the liquid trap 421 are permanent attached to the sheet-shaped carrier, but only detachably coupled to the image carrier 413. The image carrier is' in a similar way Way with the sheet-shaped carrier 411 only detachably connected. Such a construction using permanent and releasable connection points is made possible in the above im Paragraph I described way a separation of the image carrier, which carries the finished photographic image, from the sheet-like Carrier, container and liquid trap. After development, these last three components will be dropped in turn as waste material and can in the manner described in connection with FIG. 6 without damage to the operator can be wound up in a roll and thrown away.

r '

The image carrier 413 of the photographic film unit 407 corresponds in its structure the image carrier 3 of the photographic film unit 1 (see FIGS. 1 to 3), so that on the description of the image carrier 3 in Section I can be referred to.

The entire structure of the photographic film unit 407 is also the same as that of the photographic film unit 1. For a better understanding, therefore, Section I with its descriptive part "Photographic film unit ^11" can be used. However, it is closed

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Note that the components of the photographic film unit 407 have different reference numerals from the components of the film unit 1.

The liquid trap 421 of the photographic film unit 407 has one or more spacers 431 which are fixedly arranged on an edge portion 433 at the rear end of the sheet-shaped carrier, so that any at the rear End of the image carrier 413 emerging developer substance can be collected. These spacers are also in essentially incompressible and cooperate with the carrier 411 in such a way that they form suitable boundary surfaces, which preferably completely enclose a chamber or cavity which itself is between the pressure hulls of the developer distribution device, for example the pressure rollers 434 (see FIGS. 23 to 26), one with the photographic camera indicated at 435 is retained. A more detailed description of how it works such spacers are disclosed in U.S. Patent 2 686 717 stated.

The sheet-shaped carrier 411 consists of a strip-shaped one Ribbon made of flexible material that is cut out of a Sheet of the desired shape or from several cut sheets which, when put together, produce the desired shape, is formed. The sheet-shaped support serves either alone or in conjunction with various additional end parts, which will be described in more detail below, for connecting various photographic film units 407 in the film pack 405 or in the cassette 401. The sheet-shaped carrier 411 also serves to handle such film units in the cassette 401 or in the schematically indicated photographic camera 435. For this purpose, the

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leaf-shaped carriers in almost any catfish folded in one or more locations along its free leading end 437 so that suitable attachment can be done on other photographic film units and a more compact, i.e. shorter, stringing together of several Film units is made possible. One and the same photographic film unit can be used in various ways simple as well as complex can be summarized without a significant modification of the film unit itself necessary would be unless such a change were perhaps in the manner of the folding or in the manner and manner of attachment · one or more of the above mentioned additional end parts.

The sheet-shaped carrier 411 has in addition to its free leading end 437 has a second end part 439 and a middle part 441 serving as a support. The length of the free lead end 437 depends on various factors, including the manner in which the photographic Film units 407 are to be connected to one another in a film pack 405. The middle section serving as a support of the sheet-shaped carrier 411 is, like the central part 63 of the film unit 1 (see FIG. 1), with. suitable gluing points provided so that the image carrier 413, the container 419 and the liquid trap 421 in the manner described above on the sheet-shaped carrier can be attached partly permanently, partly releasably.

The processes involved in distributing the developing agent between the photosensitive member 415 and the developer element 417 of the image carrier 413 and the development of the image carrier initiated by this corresponds to the above described in Section I under "Photographic Film Unit"

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. related operations, so that reference is made to them.

Film pack and cassette

The film pack shown in FIGS. 22 to 26 is composed of a plurality of photographic film units 407 as well as a connection system, which connects the free leading end of a film unit with the free leading end an adjacent in the film pack upstream film unit connects. In the description below, the film pack essentially described in connection with the middle photographic film unit. Certain films

However, if necessary, the addition "a", "b" and "c" differ from the reference numbers. These additions relate to the first or to the middle or to the last of the film units, assuming this is that a film pack, as already mentioned, not only from three film units, but, for example, from eight such film units exists. The connection system between the individual film units is made possible by extensions or free leading ends of the respective sheet-shaped carrier or, as in a modified embodiment, through one or more additional end parts determined, which with the respective free leading end of a sheet-shaped carrier are connected. The connection between the film units

"which is chosen so that when one of these film units is removed from the film pack, the following is automatically effected: Firstly, along with the removal of this film unit, the free end part of the subsequent film unit is removed from the film pack and, secondly, this end part is automatically stripped or cut off from the previous film unit taken out of the film pack

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Has printing body, then when a film unit is removed through the passage gap, it is automatic the free end part of the subsequent film unit threaded between this pressure body in such a way that the end part at least partially through a removal opening of the photographic camera to the outside and there for one Transport of the next film unit between the pressure hulls can be detected.

Referring to Figures 22-26, it can be seen in detail that the interconnection system between the film units has an additional end portion or the free leading end 437 of the sheet-shaped carrier 411, which is initially from the front end of the image carrier 413 protrudes and then folded back while grasping around the container 419 and at the end 455 with the sheet-shaped Carrier of the upstream film unit in the film pack is connected. The connection point at the end of 455 is chosen in such a way that that in due course by peeling or stripping the end 455 from the sheet-shaped upstream in the film pack Carrier can be solved. For this purpose the end 455 is provided with a suitable closure, v / elcher has sufficient strength so that the connection during transport of the end part within the film pack and at the removal from this remains intact, while it is easily separated from each other in the film pack in front of the film unit can be when the end part protrudes through a removal opening of the photographic camera to the outside and there from the operator can be detected. The additional piece that is folded back from the one also contributes to this free leading end 437 of the sheet-shaped carrier is formed and that the movement of the end part with its front end 455 from the film pack without significant frictional resistance. After this end part, however, from the Film pack removed and between the pressure body of this

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used photographic camera has been threaded, the originally folded back piece of the End part stretched. The sudden resistance, which is opposed to the movement of the end part, causes an increase in the forces acting on the joint. In particular, FIG. 24 can also be seen be that the free end portion when it is removed from the film pack reverses its course so that its end 455 is folded or folded over essentially by 180 ° against the sheet-shaped carrier of the film unit arranged in front of the film pack is handled. This takes place immediately before the end part is separated from the film unit arranged in front of the film pack. During this process, there is a change in the type of forces acting on the connection, which is reflected in a transition from forces composed mainly of shear forces to mainly of tensile forces combined forces expresses itself. There is a "peel-off effect" one that makes the separation easier. The connection withstands relatively low tensile stresses and loosens therefore with increasing tensile forces through a separating or Peeling process. In this way, the free leading end is accessible outside of the photographic camera where it is captured can be so that the subsequent film unit can be removed from the film pack.

In the embodiment shown in FIGS. 22 to 26, the releasable connection is at one point of the with an extension provided sheet-shaped support or its end portion is provided, the distance from the front end of the image carrier approximately twice the length of the container 419 for the developing substance and its outlet funnel is equivalent to. These lengths were chosen so that the connection point provided at the end 455 on the one hand in front of the

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upstream Pilineinheit between the two pressure bodies pass therethrough, but that on the other hand only a relatively short "end of the end part ^s, the free leading end that is the blattfönaigen carrier remains, which projects after the separation of the releasable joint of the photographic camera. '

The cover sheet 409 is attached to the first or uppermost film unit in the manner described in Section II above Using a releasable connection attached.

Referring now to Figures 23-26, the operation of the preferred embodiment is illustrated. So that the cassette 401 can be precisely positioned in the photographic camera 435, the rear cover 481 can be pivoted about a hinge 483 and can be moved away from the front housing part 485 of the camera. The rear cover 481 and the front housing part 485 of the camera are separated from one another along a dividing line 487 in such a way that when the camera rear cover is opened, one of the two pressure bodies is separated from the other of the two pressure bodies and from a separating body 489 of a guide device of the photographic camera. In this opened state, the cassette containing the film pack can be inserted into the photographic camera with the free end of the cover sheet 409 protruding from the cassette. If the rear cover 481 of the camera is closed, the two pressure bodies take up a position on opposite sides of the cover sheet and thus form a passage gap for the film unit, while the free end of the cover sheet protrudes from a first outlet slot 491 of the camera, where there is a Removal of the cover sheet through the outlet slot 491 from the camera can be detected. The effect of the separating body 489 and of the outlet slot 491 will be explained in more detail below in connection with FIG. 41

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to 47 described in more detail. Another embodiment of a Guide device for guiding photographic film units aus.einer camera is also in connection with FIGS. 11 to 15 and 18-21.

The cassette is prepared for a first exposure by that the free end of the cover sheet 409 is grasped and that thereby the cover sheet between the pressure bodies pulled out of the camera through it. When the cover sheet is removed from the camera, the additional sheet moves End part or the free leading end 437a of the sheet-shaped carrier 411a together with this.wird between the two The pressure body is threaded and broken through the first outlet slot 491 into the position shown in FIG. In his In the folded state shown in Fig. 23, the free leading end 437a provides sufficient additional material to in order to be able to move freely into the position shown in FIG. 24 without significant frictional resistance. After, however this position has been reached, the excess material has been used up and the movement of the first Film unit 407a is presented with significant additional resistance. This additional resistance can come from the compact arrangement of the film pack in the cassette itself originate or be supplemented by the fact that between the rear End of the film unit and the cassette housing in the manner known to those skilled in the art, a connection which can be released when breaking is provided. In any case, the increased resistance is sufficiently great to separate the cover sheet from the end portion or free leading end 437a of the sheet support. This is shown in FIG.

The first film unit is then exposed, pulled out of the film pack and passed between the two pressure bodies. This is done in such a way that the operator

1 09847/1 308

grasps and pulls the end portion or free leading end 437a of the sheet-shaped carrier 411a. As soon as this sheet-shaped carrier has been removed, the container 419a _{f follow}

and

the liquid trap 421a / the free end part of the subsequent sheet-shaped carrier 411b to the first sheet-shaped carrier 411a between the pressure rollers 434 and through the first outlet slot 491 to the outside. The image carrier 413a is how already mentioned, separated from the rest of the waste material generated during development when it is removed from the camera and along a substantially straight guide through a second outlet slot 493 from the interior of the camera outwards. The image carrier can be pushed out of the camera completely or only until its rear end is that formed by the second outlet slot 493 Leadership achieved. In this position, the image carrier can be held releasably by means of a retaining spring 495 until the operator of the photographic camera wishes to remove the image carrier. The sheet-shaped carrier, the container, the liquid trap and the end part can then be wound up into a roll according to FIG. 6 and thrown away. Of the The image carrier, on the other hand, is kept separate from the waste material generated during development and without any further action developed into a finished photographic image by the operator of the photographic camera.

When the first photographic film unit 407a is taken out in the above-described manner and after the free one Leading end 437b of the following film unit has been threaded into its tensioned position shown in FIG is, the free end portion 455b is automatically separated from the upstream film unit and remains in one Position outside the photographic camera, where it can be detected for the removal of the subsequent film unit 407b can.

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FIg. 25 it can be seen that the free leading end 437b of the subsequent film unit remains between the pressure rollers 434, while the upstream image carrier 413a between is moved through these pressure rollers. However, since the thickness of the end part is known and the passage gap between the pressure rollers can be precisely matched to this thickness, are not harmful consequences for the required Layer thickness of the developer substance to be feared, which should be distributed in the image carrier between the elements. In addition, it is ensured that the increase in thickness of the film unit at the detachable connection point is faultless Can not influence distribution of the developer substance afterwards, since this connection provided at the end 455b before the image carrier 413b passes through the pressure rollers.

The other film units of the film pack are similarly removed from the camera for their development, see above that a further description is superfluous.

A modified embodiment of the cassette described in connection with FIGS. 22 to 26 and of the cassette therein contained film packs is shown in Figs. This exemplary embodiment is correct in essential features with the embodiment according to FIGS. 22 to 26 is the same. The features that match the features previously described coincide have been given the same exponent-extended reference numerals and are used below not described in detail.

This modified embodiment is different from the embodiment described above primarily in that an additional intermediate part 501 is provided, which between the leaf-shaped supports of adjacent fiim-

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units and connects them with each other. This additional intermediate part 501 is similar to that in FIG the embodiment described above provided with a releasable connection, which automatically a part of each film unit threads between the two pressure bodies when the respective upstream film unit from the Cassette and camera is removed, and which one is automatic Separation of successive film units allows. The additional intermediate part 501 is fixed with one end 503 of the cover sheet or the upstream film unit in the film pack, while the releasable connection is connected to the opposite End 505 of this additional intermediate part is provided at a distance from the upstream film unit. The ones in the 27 to 29 indicated photographic camera has no special separating device, such as the one in FIG The photographic camera indicated in connection with FIGS. 23 to 26, which is provided with a special separating body 489 is. The function of the camera according to FIGS. 27 to 29 is similar to the function of that described in connection with FIGS. 23 to 26. FIG Camera and its mode of operation are comparable, so that reference is made to the description there.

IV.

Related to Figs. 30 to 40 is a photographic camera, a cassette suitable therefor, and one of several Described film pack existing photographic film units, which can be used in particular in the cassette. Various film packs have already been described in detail in connection with FIGS. 7-29. The Fig. 30 shows therefore part of an expanded film pack 601 composed of a plurality of photographic film units 603, 605, 607 and a carrier tape 609, with interconnected carriers 611, 613, 615, 616 sections of this carrier tape

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form. The photographic film units 603, 605, 607 in their preferred embodiment match the film unit 1 according to FIGS. 1 to 3 correspond. This can be seen more precisely from the following description of the example picked out film unit 605 and its support 613 (Figs. 31 to 34). Each of these film units has one first layer of photosensitive material, in which on exposure creates a latent, developable image of the object being photographed as well as a second layer that acts as the image receiving layer serves for a visible image depending on the development of the latent image of the first layer. The first Layer and the second layer are constantly held together while maintaining their assignment. In the end the film unit has a supply and distribution device, which a developer liquid between the first and spreading the second layer which thereby initiates the development of the latent image and the recording of the visible image. Both the first, photosensitive The layer as well as the second image receiving layer are preferably in a first photosensitive element 617 arranged, said photosensitive element being a developer element 619 is assigned, which is used to distribute the developer liquid evenly over the two layers contributes. Photosensitive element 617 and developer element 619 preferably form and prior to exposure a common image carrier after development. However, it is also conceivable that these two elements are initially separated from each other are available separately and are constantly aligned with one another after exposure with mutual assignment stay. 34 it can be seen that the film unit also has two spacers 621 parallel to one another and 623, which are arranged along the side edges of the elements 617 and 619 between them and the light-

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"" 61 -

sensitive element 617 and the developer element 619 at least keep them at a predetermined distance from one another during the development process. This distance determines also the layer thickness of the developer liquid, which is formed between these two elements during development target. ·

The film unit 605 is used as a supply and distribution device a container 625 for the developer substance which, under the action of pressure, moves its contents between the light-sensitive Element 617 and developer element 619 distributed. The splittable container 625 is generally of one or more sheets of liquid impermeable Material built up, which are tightly closed along three edges to form a liquid container and which have a releasable seal along their fourth edge so that the developer liquid from the Container "can flow out. For distributing the developer liquid an outlet funnel 627 is provided from the container between the layers of the two elements, the is formed from two superimposed liquid-impermeable sheets 629 and 631 and the one in FIG. 34 illustrated manner between the container 625 and the photosensitive element'617 as well as the developer leinent 619 is arranged. The container 625 and the outlet funnel 627 are located at the front end of elements 617 and 619. At the opposite end of the elements is a liquid trap 633 for taking up excess developer liquid, after it has been distributed between the elements 617 and 619 is provided. The liquid trap 633 has a carrier 619 overlapping tab 635 and two spacers 637 and 639, which have the cavity for receiving the excess developer liquid between the edges of the tab 635 limit. The container 625 and the liquid trap 633 are firmly glued to the carrier 613 or are inseparable

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connected, while the two are the actual image carrier the film unit-forming elements 617 and 619 attached to the carrier 613 in a removable manner or detachably coupled thereto are, so that a separation of the image carrier from the carrier 613 by moving this carrier 613 in a to the movement path the actual image carrier deviating trajectory can take place. So that the two elements of the image carrier easily. from container 625, from outlet funnel 627 and from the Let liquid trap 633 separate, the front edges of the sheets 629 and 631 facing the two elements become of the outlet funnel 627 inserted between the two elements 617 and 619, but not connected to them. The tab 635 of the liquid trap 6 33 engages around the element 619 in a similar manner, but is not attached to it. As soon the carrier 613 is thus withdrawn from the elements 617 and 619, the outlet funnel simply slips out of the Gap out between the two elements 617 and 619, while the tab 635 slides along the element 619 and this releases.

In Fig. 30 it is shown that the carriers 611, 613, 615 and 616 are connected to one another in an overlapping manner and thus form portions of the carrier tape 609 on which the film units 603, 605 and 607 in the above-described Way are attached. The film unit 605 is again used as an example of the remaining film units of the film pack. This film unit 605 has a front one End 641 and a rear end 643, which determine the total length L of the film unit. If you look in a similar way Approach the carrier 613 as an example for the remaining sections of the carrier tape 9, then you can see that this one front end 645 and a rear end 647 which

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determine the total length of the beam, which is shown in FIG. 31 corresponds to the sum of 2 L + S. The film unit 605 is arranged on the support 613 so that its rear end 643 coincides with the rear end 647 of the carrier 613 and that the front end of the film unit 603 with the front End 645 of carrier 613 collapses. This leaves between the front end 641 of the film unit 605 and the rear end of the film unit 603 only the relatively small Distance S. Since the photosensitive member 617 and the developing member 619 of the film unit 605 are in their predetermined Assignment remain permanently connected to each other, it is only necessary that the light-sensitive element 617 is releasably connected to the carrier 613. The container 625 of the film unit 605 is fixed to the carrier 613 at a first Position of this carrier, which lies between the front end 645 and the rear end 647, this location substantially coincides with the front end of the beam 615. The front end 645 of the carrier 613 is with the Carrier 611 inseparably connected at a second point of this carrier. This second point is between the front and the rear end of the carrier 611 and, as indicated above, falls essentially with the front end of the Film unit 603 together. The forward end of bracket 615 is similarly in place with bracket 613 this carrier is inseparably connected, which coincides with the front end 641 of the film unit 605 substantially. The free end of the beam 616 is similarly connected to the beam 615 at a location which is substantially coincides with the front end of the film unit 607. At the When assembling the film pack 601, the individual carriers can thus first be put together in a suitable manner to form the carrier tape 609 will. Once this is done, the film units, in particular the image carriers, each assigned to one of these tracers of the carrier tape and coupled to it

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will. As an alternative, it can be provided that each film unit together with its carrier in a suitable manner Way is combined to form a sub-unit according to FIG. 31 and that these sub-units are then combined and thus form the entire film pack. In 'Fig. 31, the carrier 613 is in the unfolded state shown so that the aspect ratios mentioned above can be demonstrated. Fig. 32 shows the sub-unit 31, the carrier 613 of which is folded over the front half of the film unit 605, as is also the case then This is the case when the individual film units are combined in a stack to form the film pack 601. Fig. 33 shows a perspective view of the sub-unit according to FIG.

For convenience of illustration, in Fig. 30, the film pack 601 is shown using only three photographic film units. In reality, however, this film pack has a larger number, for example eight, of such film units, which are arranged in FIG. 35 in the cassette provided for them. The photo film units 603, 605 and 607 shown in FIG. 30 are shown as the top three film units of the film pack shown in FIG. Both FIGS. 32 and 35 show that each carrier, when the individual film units are combined in a stack to form a film pack, is folded back around the front end of its film unit and up to the rear end of the film unit a point runs which Zvi ^s chen the front end and the rear end of the film unit is located. At this point the carrier is folded again and now runs against the front end of the film unit with abutment against its subjacent section, so that the free leading end of the carrier coincides with the front end of the film unit. It is recalled that that

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free leading end of the carrier firmly connected to the carrier of the upstream film unit in the film pack at one point is that with the front end of that film unit coincides with those on the previous one just mentioned Carrier is arranged. The free end 649 of the carrier tape 609 has an adhesive strip 651, by means of which the carrier tape can be fastened in a collecting device, which in connection with the one described below Cassette should be described in more detail. The free end 649 is for light leading to exposure of the film units can lead, impermeable and extends completely over the uppermost film unit 603 to thereby a To form a cover sheet, which is to prevent premature exposure and which to otherwise protect the film units serves, if this is put together in a film pack are arranged, for example, in the cassette 653 according to FIGS. 35 and 36. The opposite to the free end 649 The end of the carrier tape 609 can also be folded over below the lowermost film unit of the film pack in order to this Film unit against scratches or other damage from the cassette itself or from foreign objects that may accidentally can get into the cassette to protect.

The cartridge 653 has a disposable housing 655 which forms a storage chamber for receiving the film units combined in a stack to form a film pack, as well as one rectangular opening 668 through which the individual film units can be exposed. The cassette 653 has a collecting device for the carrier tape in the form of a take-up reel 657, which has a coupling part 659, which with a transport device of a photographic Camera can interact, whereby ö a movement of the carrier tape and the film units connected to it can take place within the cassette. The housing 655 is of a

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Reinforced rear wall 661, which two semicircular "formed Has bearing surfaces 663, only one of which is visible in FIG. 6, for receiving the rotatable take-up reel 657, which are thus provided between the bearing surfaces 663 and two corresponding semicircular recesses provided in the housing 655 665 can turn. Only one of the semicircular recesses 665 is also visible in FIG. 35. To ensure proper alignment of the cassette 653 in the dedicated photographic camera, the cassette housing 655 has a centering surface 667, which prevents light from entering the cassette, encloses the rectangular opening 668 and at a corresponding one Support surface of the intended photographic The camera can be in contact to ensure perfect positioning of the uppermost film unit 603 in the focal plane defined by the photographic lens of a camera. The housing 655 is also provided with a rectangular opening 669 into which a pressure body a Developer distribution device of the photographic camera can intervene in the manner described in more detail below. In the vicinity of the opening 669, but in a side wall 671 of the housing 655, there is another rectangular opening 673 provided, which serves as the outlet slot of the cassette and through which the composite of the two elements integral image carrier of each film unit can be pushed out of the cassette. On the rear wall 661 is supported in addition, a plate 675 which is suitable for proper alignment of each of the film units of the film pack in the focal plane to press spring-d into its uppermost position. Inside the cartridge 653 is a part a guide device of the cassette serving pressure body 677 is mounted, the upper side of which to the aforementioned pressure body aligned with the camera when the cassette is in this camera. In this context it should be noted

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that the rectangular opening serving as the outlet slot 673 and the pressure body 677 are both arranged at the same end of the cassette 653, while the take-up reel 657 is provided at the opposite end of the cassette. Fig. 35 shows an exaggerated one for better understanding ^ Exploded View ", while Fig. 36 shows the cassette 353 in its fully closed state, although part of the housing 655 is shown broken away is to better illustrate the arrangement of the take-up reel 657 and its storage within the cassette. In the

an inner wall part 679 is provided for cassette 653, which / the plate 675 and the rear wall 661 form a guide through which the carrier tape 609 from the pressure body 677 to the take-up reel 657, which will be explained in more detail below.

A cassette photographic camera of the type shown in FIGS. 35 and 36 is shown in FIG. This designated by the reference numeral 680 photographic camera has a housing 681, which has a chamber 683 for Has receptacle for the cassette and other camera components, including a pressure body in the form of a pressure roller, a transport member 687 for the carrier tape of a camera release 689 and a camera back cover 691. The cassette 653 is inserted into the camera 680 by opening the camera back cover 691 and inserting the cassette into the chamber 683 of the input photographic camera, whereupon the camera back cover 691 is closed. This will make the cartridge 653 pressed against a part 693 of the photographic camera which closes off the light. Also when closing the camera back cover 691 aligns the pressure roller 685 to the pressure body 677 of the cassette, the pressure roller partially engages the cassette through the rectangular opening 669. Since the pressure roller 685 is under the influence of a pressure

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spring 695 is pressed down, the pressure roller lies directly at the point of the film pack, which between the pressure body 677 and the pressure roller 685 lies (see Fig. 37). If the camera back cover 691 is in its closed position, then a compression spring 697 presses the cassette 653 into its working position shown in the direction of Focal plane of the photographic lens. In the right end wall 699 of the housing 681 of the camera there is a Outlet slot 701, which is aligned with the opening 673 of the cassette serving as an outlet slot, so that a Guide is created along which the image carrier of each film unit of the film pack from the cassette and out the camera. While the image carrier of each photographic film unit extends along a substantially can move straight guideway after it has passed between the pressure body 677 and the pressure roller 685, the carrier tape 609 is deflected downward by means of the pressure body 677 and thus along one of the movement path out of the image carrier deviating movement path, whereby a separation of the carrier tape from the actual image carrier is effected. In the state shown in Fig. 37, the image carriers 604, 606 and 608 of the film units 603 and 608, respectively. 605 or 607 of the film pack 601 has already been pushed out of the camera, while the image carrier 612 of the film unit 610 is pressed out of the camera at the moment, with its rear end still between the opening 673 of the Cassette and the outlet slot 701 of the camera is located. Is the photographic camera in this standby state? / the remaining four film units of the film pack are still in the cassette. The carrier tape 609 is in this figure shown partially wound on the take-up reel 657 while the liquid trap 636 of the film unit 610 is on the carrier tape 609 is shown to the right of the pressure roller 685.

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The function of the film pack 601 in the cassette 653 installed in the camera 680 will now be described. FIGS. 38 to 40 show enlarged partial cross-sections of the photographic camera 680 / which accommodates the cassette 653 containing the film pack 601 in its chamber 683. In Fig. 38, the free leading end of the carrier tape 609 is shown wound on the take-up reel 657, which was rotated in response to the operation of the transport member 687 by the operator of the photographic camera. As a rule, of course, this only occurs after the film unit 603 has been exposed as a function of the actuation of the camera release 6 89 by the operator. According to FIG. 38, the carrier tape 609 has just been wound up on the take-up reel 657 to such an extent that the film unit 603 can be inserted into the passage gap between the pressure body 677 and the pressure roller 685. Because the carrier tape is pulled down around the pressure body 677, the carrier 611 and the container 624 connected to it as well as the outlet funnel 626 are guided along a movement path which deviates from the movement path of the image carrier 4, whereby a separation of the carrier, the container and of the outlet funnel from the image carrier. At this time, the container 624 was opened in the passage between the pressure body 677 and the pressure roller, so that the developing liquid can be distributed between the elements 618 and 620 of the image carrier. In Fig. 39, a stage of the procedure is illustrated on the take-up spool 657 as a function .of for a further ^e Aufwiekeln of the carrier tape 609 of a further actuation of the conveyor member is achieved 687th In this state, the carrier 611 is partially wound onto the take-up reel 657, while in the meantime almost the entire film unit 603 has passed through the passage gap between the pressure body

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and the pressure roller 685 has pulled through. The image carrier 604 is relatively stiff, while the carrier tape is relatively is flexible. As a result of these properties, the image carrier essentially follows that through the opening 673 of FIG Cassette and the substantially straight guide formed by the outlet slot 701 of the camera. The ongoing leadership of the image carrier and the carrier tape along different lines Trajectories constantly cause their separation from one another. In Fig. 40 a later stage of the process is shown, which is achieved when a further winding of the carrier tape 609 on the take-up reel 657 the actual Ejection of the image carrier 604 from the cassette and the camera, with only the rear end of the image carrier in the outlet slots and the rear end of the carrier 611 and the liquid trap 632 between the both pressure hulls remain. During the passage of the film unit 603 between the pressure body and the pressure roller the developer liquid made available from the container 624 and the outlet funnel 626 between the two Elements 618 and 620 of the image carrier are distributed, with any excess developer liquid in the liquid trap 632 is recorded. The mutually aligned elements of the image carrier 604 can now be exposed to daylight and be picked up by the camera operator even if the development of the latent Image and the formation of the visible image should not be completed. This can be done because an opacifying agent or so-called opacifying agent is contained in the developer liquid, which when it is distributed between elements 618 and 620 of image carrier 604 is the photosensitive layer of element 618 before exposure by the daylight protection dog because the development process for the production of a legible finished product photographic image is predetermined in its timing without the operator paying attention to this process

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would have to give.

39 and 40 it can be seen that the film unit 605 follows the film unit 603 at a short distance, wherein this distance corresponds to the distance denoted by S in FIGS. 30 to 32. Because of the short distance between consecutive Film units only need a relatively short length of the carrier tape to be wound on the take-up reel 657 be to the necessary movement of the film units through the gap between the pressure body 677 and the pressure roller 685 to be able to effect. The time required for such movement, the diameter of the the take-up reel, the space required in the cassette for winding and the The size of the cassette and the camera can therefore all be selected to be smaller than in the case of a film pack between successive Film units has a greater spacing.

From the preceding description it follows that with the described Cassette both a symmetrical structure of this cassette and a symmetrical structure of the one suitable for this photographic camera can be achieved. This means in particular for the cassette that it is easier to use can be handled, a more pleasing external design can be produced with less difficulty and cost is and that they finally in a particularly simple manner a separation of the necessary parts of the film units from Carrier tape allows, with only the actual image carrier of each film unit removed from the cassette while the carrier tape and other waste material from the development process is in the collecting device the cassette.

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V.

In connection with FIGS. 41 to 47, a photographic camera 801 is described which is used for recording a Cassette 802 is suitable, which corresponds in its structure to the cassette according to FIG. 7, and which in its cassette housing 803 a film pack 805 made of integral photographic film units 807 and a cover sheet 809 houses.

The construction of a photographic film unit 807 is the same as that described in connection with Figs pAographic film unit 1. Each of the photographic film units 807 accordingly has a tape serving as a carrier tape sheet-shaped carrier 811, a narrower * than this formed image carrier 813, which in turn consists of a Sensitive element 815 and a developer element 817 consists, a container 819 for a developer substance and a liquid trap 821 for receiving excess Developer substance on. The film pack 805 can be any number, for example eight, photographic 807 film units included. To simplify the description, however, the film pack is only provided with three of these photographic ones Film units shown in the figures. The reference numbers therefore generally only relate to one another on one of the illustrated photographic film units since the construction of all photographic film units is essentially is identical.

The photosensitive member 815 and the developer member 817 are carefully designed to have sheet-shaped parts with straight edges, right-angled corners, and useful Form margins. These two elements are carefully matched during manufacture so that they a uniformly flat image carrier 813 with an attractive

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1121828

Form an outer form, which retains its integral structure even after development. This image carrier 813 has already all parts necessary for development in a photographic camera suitable for this purpose, which be held together at all times without affecting the finished photographic image.

The image carrier 813 together with the container 819 and the liquid trap 821 are on the sheet-shaped carrier 811 arranged, the latter with the image carrier for distributing a suitable developer substance between the two Elements of the image carrier at one end or for collecting excess developer substance escaping between these two elements at the opposite end are coupled. The sheet-shaped carrier is particularly useful for easy and convenient handling of the whole Film unit 807 is suitable, even in the first stages of its manufacture through to completed manufacture of the finished photographic image and the removal of waste material from processing. To this The purpose of the sheet-like carrier serving as the carrier tape is essentially only a single photographic film unit closely associated. However, it can be coupled to other similar film units in the manner already described be.

The container 819 and the liquid trap 821 are permanently attached to the sheet-shaped carrier, but with the image carrier 813 only detachably coupled. In a similar manner, the image carrier is only releasably connected to the sheet-shaped carrier 811. Such a construction, using permanent and releasable connection points, enables injäer in the manner described above in paragraph I, a separation of the image

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2Ί213 28

carrier, which carries the finished photographic image, from the sheet-shaped carrier, from the container and from the liquid trap. After development, these last-mentioned three components are again incurred as waste material and can be wound up into a roll and thrown away in the manner described in connection with FIG. 6 without harm to the operator.

41 shows the photographic camera 801 which is used to accommodate the cassette 802 containing the film pack 805. This photographic camera can gradually adjust the exposure successive film units of the film pack carried out and their development initiated. Therefor the photographic camera has a developer distribution device, the stepped pressure rollers 823 and 824, which open the container 819 and the distribution of the developing substance contained in this container between the photosensitive element 815 and the developing element 817 of the image carrier 813 cause. The photographic camera is also equipped with a guiding and separating device 825 provided, which enables the separation of the actual image carrier from the waste material arising during development, such as ^ for example the sheet-shaped carrier, the container, the liquid trap and other guide parts in which between the removal of the pressure rollers after the development of the image carrier has been initiated.

The image carrier 813 corresponds to the photographic film unit 807 in its structure to the image carrier 3 of the photographic film unit 1 (see FIGS. 1 to 3), so that to the description of the image carrier 3 in Section I can be referred to.

The entire construction of the photographic film unit 807 is correct

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also corresponds to the structure of the photographic film unit 1. For a better understanding, the Section I with its descriptive part "Photographic Film Unit" can be used. It should be noted, however, that the components of the photographic film unit 807 are different from the components of the film unit 1 reference numerals exhibit. Features of the present photographic film unit 807 which may differ from the film unit 1 can be found using Section III of the description for the cassette 401, but in particular below Consideration of the part of the description "Film pack and cassette", explain in more detail.

Referring to Figs. 44 to 47, it can be seen in detail that the interconnection system between the film units has an additional end portion or comprises the free leading end 837 of the sheet-shaped carrier, which is initially from the front end of the image carrier protrudes and then folded back while grasping around the container 819 and at its end 855 with the sheet-shaped Carrier of the upstream film unit in the film pack is connected. As with the film pack 405 (see Figs. 22-26), the Connection point at the end 855 selected so that it can be removed at the appropriate time by detaching or stripping the end 855 from can be released from the sheet-shaped carrier arranged in front of the film pack. Fig. 45 can also be taken from, how the free end part of the sheet-shaped carrier reverses its course when it is removed from the film pack such that its end 855 is folded over essentially by 180 ° against the sheet-shaped carrier of the film unit arranged in front of the film pack or is handled. This takes place immediately before the end part is separated from the film unit arranged in front of the film pack.

The cover sheet 809 is described in Section II above.

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same way on the first or top film unit a releasable connection of the type described / attached.

Photographic camera and separator

The photographic camera 801 shown in Fig. 41 has a housing 861 »which, among other things, a photographic lens 863, a telescopically collapsible

having lens mount 865 and a housing base body 867/1

The housing base body has a front housing part 869 and a rear housing part 871, which with the front Housing part can be connected separably in any way. In the present case, the rear housing part is used the photographic camera as a camera back cover for covering an interior space provided for receiving a cassette 873. The rear housing part serving as the camera rear cover is connected to the front housing part via a hinge 875 pivotally connected, so that when the camera back cover is open, the cassette 803 enters the interior space 873 can be easily positioned through this inserted and / closed camera back cover. The front and the rear housing parts of the camera are separated from one another along a dividing line 878 in such a way that when the camera rear cover is opened the pressure roller 823 connected to the rear housing part from the pressure roller arranged in the front housing part 824 is disconnected. The dividing line is also chosen such that a separating body 881 in the front housing part remains in the vicinity of the platen 824 when the camera back cover is opened. The cassette 802 is in the interior inserted into the photographic camera, the free end part of its cover sheet 809 protruding from its removal opening.

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protrudes. If the back cover of the camera is closed, then take it the two pressure rollers 823 and 824 a position on opposite sides of the cover sheet, while the free end of the cover sheet from a first outlet slot 883 of the camera protrudes where there is a removal of the cover sheet can be detected through this outlet slot.

The cassette housing 803 is in the photographic camera by means of mutually associated support surfaces 885 of the cassette and 887 of the camera which positions the film unit closest to the lens in the focal plane of the lens align and also serve as a closure, which prevents the incidence of daylight. The pilra units, which are assembled into a film pack in the photographic camera can be exposed and be developed during the removal from the camera through the gap between the two pressure bodies. At her Movement between the pressure rollers through each of the container 819 of a film unit is opened in such a way that the in it contains developer substance between the photosensitive element and the developer element, from the front to the rear end of the image carrier, can be distributed, with any excess at the rear end of the image carrier 'Developer substance can be taken up in the liquid trap 821.

The guiding and separating device of the photographic camera, which can be seen in particular in Fig. 43, is provided with the separating body 881, which is arranged on the side of the pressure rollers facing away from the film pack and which forms two guides that connect the interior of the photographic camera to its exterior. One of these two guides, which have a second outlet slot 891

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runs essentially straight from the cartridge removal opening 893 between the two pressure rollers through and through the second outlet slot 891 to the outside of the camera. The other 'leadership is against it from the removal opening of the cassette between the two pressure rollers and then in one of the course the course deviating from the first guide, through the first removal slot located at a distance from the second removal slot 891 883 to the outside.

The cassette is prepared for a first exposure by gripping the free end of the cover sheet 809 and that thereby the cover sheet is pulled out of the camera between the pressure rollers. In the Removal of the cover sheet from the camera moves the free leading end 837a of the sheet-shaped carrier 811a together with this, it is threaded between the two pressure rollers and / the first outlet slot 883 in the in Fig. 45 position shown. In its folded state shown in Fig. 44, the free leading end delivers 837a of the sheet-shaped carrier has sufficient additional material to move without significant frictional resistance to be able to move freely into the position shown in FIG. 45. However, after this position has been reached is, the excess material has been consumed and the movement of the first film unit 807a becomes significant opposed additional resistance. This additional resistance can come from the compact arrangement of the Filiapack originate in the cassette itself or are supplemented by being between the rear end of the film unit and the cassette housing in the manner known to the person skilled in the art, a connection which can be released when breaking is provided. The increased Resistance is in any case large enough to generate a

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Separation of the cover sheet from the end part or free leading end 837a of the sheet-shaped carrier (see Fig. 45).

The first film unit is then pulled out of the film pack, exposed to light, and passed between the two pressure rollers. This is done in such a way that the operator touches the end portion or the free leading end 837a of the grasped sheet-shaped carrier 811a and pulls on this. As soon as this sheet-shaped carrier has been removed, the container follows 819a, the liquid trap 821a and the free end part of the subsequent sheet-shaped carrier 81Ib the first sheet-shaped Carrier 811a between the pressure rollers and along the curved guide to the first outlet slot 881. The image carrier In contrast, 813a is relatively stiff and moves along the essentially straight guide through the second outlet slot 891 out of the camera. The two guides run along guide surfaces facing away from one another Separating body 881, which thus defines the two guides and the separation or detachment of the image carrier from the its associated carrier, the container and the liquid trap causes this when the guide surfaces assigned to them of the separating body can be moved along to the outside of the camera.

The image carrier can be pushed out of the camera completely or only so far out until its rear end passes through reaches the second outlet slot formed guide. In this position, the image carrier can by means of a retaining spring be held detachably until the operator of the photographic camera can remove the image carrier The sheet-shaped carrier, the container, the liquid trap and the free leading end can then be wound up into a roll according to FIG. 6 and thrown away. Of the

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SO

On the other hand, the image carrier is kept separate from the waste material arising during development and is developed into a finished photographic image without any further action by the operator of the photographic camera.

When the first photographic film unit 807a is removed in the manner described above and after the free leading end 837b of the subsequent film unit has been threaded into its tensioned position shown in FIG. 46 , the free end portion 855b is automatically separated from the pre- arranged film unit and remains in a position outside the photographic camera, where it can be detected for removal of the subsequent film unit 807b.

Fig. 46 it can be seen that the free leading end 837b remains the subsequent film unit between the pressure rollers 823 and 824, while the upstream image carrier is moved through 813a between the pressure rollers. However, since the thickness of the end part is known and the gap between the pressure rollers can be precisely adapted to this thickness, there are no detrimental consequences for the layer thickness of the developer substance required during development, which should be distributed between the elements in the image carrier. In addition, it is ensured that the increase in thickness of the film unit at the detachable connection point cannot subsequently influence the proper distribution of the developer substance, since this connection provided at the end 855b runs through the pressure rollers in front of the image carrier 813b. ..

The other film units of the film pack are removed from the camera in a similar manner to their development, so that no further description is necessary.

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VI.

48 and 49 show a further preferred embodiment of a photographic camera 901 and a cassette 903 suitable for this purpose. The cassette 903 is used for receiving a plurality of photographic Filitieinheiten for producing a finished photographic image which substantially correspond to the photographic film unit ^e described above in Sections I through V, to 'thereby distinguish, however, that they have no separate carrier sheet' of these, rather, individual sections of a single strip-shaped carrier tape 923 are assigned to them. After it has been separated from the individual image carriers, this carrier tape is fed to a collecting device of the photographic camera 901. The removal of the individual image carriers from the film pack can be effected by a transport device of the photographic camera acting on the carrier tape. After exposure of the uppermost film unit of the film pack, the strip-shaped carrier tape is fed to the collecting device of the cassette by actuating the transport device of the camera. During this process, an image carrier, the container assigned to it for the developer substance and the liquid trap are passed between the two pressure bodies of the developer adjusting device, whereby the development of the image carrier is initiated. When the transport device of the camera is actuated again, the integral image carrier is separated from the strip-shaped carrier tape, the container and the liquid trap, so that the image carrier can get outside through the removal opening of the camera. The resulting in the development of waste material remaining in the collection device of the cassette and can / ground together with this _we gg _eW orfen v. The operator of the camera must therefore neither when inserting a full cassette into the camera nor when removing an empty cassette from the

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Camera around waste material generated during development To take care of.

The photographic film unit 905 is shown in Figs shown. It is similar in structure to the photographic film unit described in connection with FIG 605, which is why reference is made to the corresponding description in Section IV. Thus, the photographic film unit has 905 a photosensitive element 911 and a developer learn 913 which is the photosensitive element is assigned and that contributes to the even distribution of the developer substance over the first element. The light sensitive Element 911 and developer element 913 preferably form one before exposure and after development common image carrier. However, it is also conceivable that these two elements are initially available separately from one another stand and remain aligned with each other after exposure with mutual assignment. The film unit owns In addition, two spacers 915 parallel to one another, which are arranged along the side edges of the image carrier are and which the photosensitive element and the developer element at least during the development process in keep a predetermined distance from each other. This distance also determines the layer thickness of the developer substance, which should develop in the development between these two elements.

The container 907 of the film unit has an outlet funnel 917, which, in the manner described above, is the intermediate layer present between the two elements of the image carrier supplied with developer substance. The liquid trap 909 on The rear end of the image carrier is secured by a tab 919 encompassing this image carrier and by lateral spacers 921 formed.

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The container 907 and the liquid trap 909 are with the strip-shaped carrier tape 923 firmly connected, while the image carrier in the specified in the previous sections Way with the carrier tape 923, the outlet funnel 917 and the tab 919 of the liquid trap is only detachably connected. The actual separation process of the image carrier from strip-shaped carrier tape, the container and the liquid trap is described in more detail in connection with FIGS. 54 to 56.

In Figs. 50 and 51, a preferred embodiment is one Cassette for receiving a film pack shown, whose individual .v image carrier are connected to one another via the strip-shaped carrier tape 923. The image carriers can then be removed from the carrier tape be replaced that this is guided in a plane which is defined by the respective image carrier Level deviates. The connection used between the image carrier and the carrier tape can withstand relatively high shear forces, but are only exposed to low tensile forces. This has the consequence that a pulling of the carrier tape in a Direction which runs essentially parallel to the plane defined by the image carrier is not suitable for to cause a separation of the image carrier from the carrier tape, but that a peeling of the carrier tape in one of the plane of the Image carrier different level leads to a separation of the image carrier from the carrier tape.

The individual photographic film units are / of the cassette 903 combined into a film pack, with the front end of each film unit to the front end of the other film unit is aligned. The strip-shaped carrier tape, on the other hand, winds between the individual film units in one Wavy line through, .With all film units of the film pack only on a single side of the carrier tape in this way

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St.

are releasably attached that in the expanded state of the TiImpacks the front and rear ends of adjacent image carriers are opposite one another. The free end. 925 des Carrier tape 923 has an adhesive strip 927 (compare FIGS. 50 and 51), by means of which the carrier tape in the collecting device can be attached, which will be described in more detail below in connection with the cassette. The free end 925 of the carrier tape can be opaque to light which could lead to exposure of the film units be and extend over the entire exposure opening of the cassette to thereby a cover sheet to form, which should prevent premature exposure and otherwise protect the film unit. That the end of the carrier tape opposite the free end 925 can also be folded over below the lowest film unit of the film pack in order to prevent this film unit from being scratched or damage 'by a plate 643 resting on the film pack or by foreign bodies, which accidentally get into the cassette.

The cassette 903 has a disposable housing 931 which has a storage chamber for receiving the in a stack to one Filmpack summarized film units forms as well as a transport device and a collecting device for the tape-shaped carrier tape in the form of a take-up reel 933, which has a coupling part 935, which with the transport device a photographic camera can interact, thereby causing a movement of the carrier tape and that connected to it Image carrier can be done inside and out of the camera. The take-up reel is between two of the cassette case protruding side walls essentially between the front wall part 937 and the rear wall part 938 of the cassette rotatably arranged at one end of the cassette. To ensure that the cassette is correctly aligned in the intended

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»Sr

To ensure photographic camera, the front wall part of the cassette has centering surfaces 939, which prevent the collapse Prevent light from entering the cassette and by resting on appropriate centering surfaces of the photographic Camera correct positioning of the top film. called in that defined by the photographic lens Ensure focal plane. The plate 943, which is suitable, is also supported on the rear wall part of the cassette is, each of the film units of a film pack resiliently in their for proper positioning in the focal plane . to press the top position. The film units are connected by a connecting the interior of the cassette with the outside Removal slot 945 transported, which in the vicinity of the front wall part 937 and the take-up reel 933 of Collection device is arranged. The take-up reel 933 is, however, which will be explained in more detail below, arranged offset with respect to the outlet slot 945.

The photographic camera, which can be seen in particular in FIGS. 48 and 49, has a housing 951 which has a Has chamber 953 for receiving a cassette and other camera components, including a developer distribution device 955, a transport device 957 for the carrier tape, a camera trigger 959 and a camera back cover 961. After opening the back cover of the camera, the cassette be inserted into the camera because the camera back cover exposes the chamber 953 and also two pressure rollers 963 and 965 of the developer distributor 955 separates from each other. This arrangement creates the possibility that the cassette with its centering surfaces 939 to rest on the corresponding Centering surfaces 967 of the photographic camera can be brought and that the two pressure rollers 963 and 965 of the developer distribution device on opposite sides of the strip-shaped carrier tape 923

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can be sorted. After entering the cassette in'den Inside the camera, the camera back cover is pivoted into its closed position and locked in this. this has the consequence that the cassette is pressed against the centering surfaces 967 of the photographic camera by means of a spring 969 and that the two pressure rollers along the guide path of the carrier tape on opposite sides of this The carrier tape. The path of movement of the carrier tape is determined by the outlet slot 945 of the cassette, the location of the passage gap determined between the two pressure rollers 963 and 965 and an outlet slot 971 of the photographic camera, which all lie essentially in one plane when the cassette is in the interior of the camera and when the Camera back cover is closed. In this way, the individual image carriers can be guided along an essentially flat guide path and without a turn being made from the interior of the cassette through the photographic camera to the outside be guided. The strip-shaped carrier tape 923 can in contrast to the picture carriers bend very sharply and is therefore after there is the passage gap between the two Has passed through printing rollers, along a guide path in the which differs greatly from the guide path of the image carriers in the manner shown in Fig. 49 in the direction of the camera back cover to the take-up reel 933 and attached to it, In the modified exemplary embodiment of the cassette according to FIG. 48 shown in FIG. 49A, one of the two forms Pressure body of the developer distribution device part of the cartridge. Regardless of the particular embodiment but in any case ensures that the distance between the strip-shaped carrier tape and the image carrier after leaving of the passage gap is enlarged and that this results in the separation of the image carrier from the carrier tape.

In Figs. 54 to 56 three different stages of the removal of the carrier tape 923 and a are detachably arranged thereon

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Image carrier 905 shown from the cassette and the camera. 54 shows the status of the process after the exposure has been completed an image carrier and after the removal of the image carrier from the cassette and into the passage gap between the two pressure rollers has been initiated by actuating the transport device of the camera. In this position the image carrier is held essentially in one plane by having it at its front end between the two pressure rollers and supported at its middle or rear end between the outlet slot 945 and the front wall part 937 is. The strip-shaped carrier tape, on the other hand, is placed between the developer distribution device by resting against the pressure roller 965 and the take-up reel 933 in a relatively tensioned state in a divergent plane to the plane defined by the image carrier Level held. As a result of this direction of movement of the strip-shaped carrier tape, the container 907 and its outlet funnel 917, both of which are attached to the carrier tape, moves along a guide path which defines the distance enlarged between the container for the developer substance and the image carrier, the outlet funnel of the container pulls out of the intermediate layer between the elements of the image carrier and the image carrier from the container and its outlet funnel separates. When the transport device is operated further, the container and its outlet funnel open the take-up reel is wound up, while the actual image carrier is essentially continued for so long in its guide plane until its front end protrudes through the outlet slot 971 of the camera.

In the state shown in FIG. 55, the front end protrudes of the image carrier out of the outlet slot 971 of the photographic camera, the image carrier through this outlet slot and the passage gap between the two pressure rollers is kept essentially in one plane, while the strip-

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It

shaped carrier tape 923 as a result of its movement in one of them divergent plane of motion constantly from the bottom of the Image carrier is replaced. This stripping process between the image carrier and the strip-shaped carrier tape is generally achieved by changing the 'between' the carrier tape and the respective image carrier causes acting forces, the transition of shear forces, which essentially prevail during the transport of the carrier tape, takes place to forces that at least separate the image carrier from the carrier tape must contain a considerable amount of tensile forces.

In the position shown in Fig. 56, the liquid trap becomes 109 after it has passed through the gap between the pressure rollers, in a manner similar to the container 907 separated from the image carrier, since the distance between the image carrier and the location of the carrier tape increases to which the liquid trap is attached, when the carrier tape is moved to the take-up reel. The liquid trap 909 is opened by further turning the take-up spool in a manner similar to that of the developer container wound on the take-up reel 933 while the actual image carrier is in one position in the outlet slot of the camera is held in which it is completely separated from the strip-shaped carrier tape and in which it is held by the operator the photographic camera can be detected and completely withdrawn from the camera. Training Of course, the camera can also be designed in such a way that the actual image carrier is automatically pushed completely out of the camera without the operator having to intervene. In both cases, however, it is ensured that that the outer surfaces of the image carrier are in the dry state when they are the operator of the Picks up the camera for the first time. The carrier tape and the other waste material generated during development,

109847/1308

which possibly includes excess developer substance, on the other hand, are wound onto the take-up reel of the cassette and do not require any immediate handling by the operator of the camera. Because the developer substance distributed between the two elements of the image carrier contains an opacifying agent or a so-called opacifying agent and there the actual chemical development process is predetermined in its timing, the image carrier can be removed from the camera and immediately after exposure can be developed automatically to produce a finished photographic image without the operator being involved the camera for the correct amount of time for the development process or for stripping of the finished photographic Image from photosensitive material.

In FIGS. 57 to 61, various modified exemplary embodiments are shown the transport device of the photographic camera shown, which transports the carrier tape and / or cause the automatic dimensioning of a movement switching step for the carrier tape. In the following Description will be a brief explanation of the essential parts of these various embodiments Transport facility given.

In the embodiment shown in FIG. 57, the strip-shaped carrier tape 923 is along one side edge a perforation is provided which has holes spaced suitably from one another which permit further movement of the carrier tape after the image carrier in the film pack has been pushed out of the camera and immediately before the carrier tape initiates the transport of the subsequent image carrier in the film pack, which is just for The exposure aperture of the cassette is aligned. The exact-

109847/1308

The formation and arrangement of the holes of the perforation is not shown in FIG. 57. This perforation can jeSoch ^{χ ιη} / manner shown Fig. 58 and in the well-known to those skilled in the art also voted v / ground. According to FIG. 57, the carrier tape is transported by means of a lever 1000 which is accessible on the outside of the camera and can be pivoted about the pivot point 1001. The possible back and forth movement of the lever 1000 is transmitted to a gear wheel 1002 by a coupling that locks on one side. The one-sided locking coupling has a pawl 1ΟΟ4 and

W a pinion 1006, which are in engagement with one another during the pivoting movement of the lever 1000 in the counterclockwise direction and which are movable relative to one another during the pivoting movement of the lever in the clockwise direction. The rotational movement of the gear 1002 is transmitted to the take-up reel 933, which in turn has teeth, via an intermediate gear 1008, the teeth of which are selected so that both the gear 1002 and the teeth of the take-up reel can mesh with them. The pivoting movement of the lever 1000 is continued until a first end 1010 of a metering pawl 1012 engages a hole in the perforation of the carrier tape, the other end 1014 of the metering pawl engaging the toothing of the gear 1002 of the transport device. This prevents further transport of the carrier tape and further advance of the image carrier in a position in which the next exposure can be carried out. After this subsequent exposure, the metering pawl is swiveled out of the hole of the perforation by means of a device not shown, which is accessible on the outside of the camera and which now allows further movement of the image carrier and aligns a subsequent film unit to the exposure opening of the cassette.

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58 and 59 show a further embodiment of a transport device for the carrier tape, which in a similar Wöise as the transport device according to Fig. 57 works. The one for the transport of the strip-shaped The carrier tape required force is in this embodiment provided by a'Federmotor, which has a spring 1100, which is located in the interior of the take-up reel 933 is arranged, with one end 1102 firmly connected to the housing of the photographic camera and with its other end End 1104 is connected to take-up reel 933. The dimensioning of the individual switching steps is based on the states in the exemplary embodiment 49 comparable, automatically effected by a metering pawl 1106, the first end 1108 of which into a Hole of the perforation of the carrier tape can engage and thereby with its second end 1110 the transport device prevents further rotation.

Another embodiment of a transport and metering device can be found in FIG. 60. The necessary forces for a movement of the carrier tape are here by a Electric motor 1202 operated by a battery 1200 is provided. In this case, the transport device has a metering pawl 1204, which has one end 1206 in a hole of the perforation of the carrier tape in the above-described Way can intervene and with its second end 1208 the electrical circuit for the electric motor 1202 can open and thus a further advance of the carrier tape and the image carrier can be primordial.

Fig. 61 "shows a last embodiment of a transport and ignition device for the strip-shaped carrier tape. at In this exemplary embodiment, the electrical energy source is arranged in the take-up reel 933, for example in the form of one Battery 1300 available with the cassette

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posed. The battery 1300 is connected to the electric motor 1302 via contact pieces 1304 and 1306 of the cassette. at In this exemplary embodiment, however, instead of the perforation along one side edge, the carrier tape has an electrical conductive material 1308. This material ensures that the electrical. Electric motor 1302 circuit once a switch 1309 is closed as long as it remains closed, until a gap in the electrically conductive material acting as a switch interrupts the electrical circuit and creates a further transport of the carrier tape prevented.

From what has been said above it follows that with the present photographic Camera a device is made available, which enables a finished photographic image to be produced in such a way that only the person bearing the finished image Image carrier can be removed from the camera, while the waste material generated during development is automatically removed from the image carrier is separated and by the operator neither when inserting a new full cassette into the camera nor when the removal of a now empty cassette from the camera must be taken in hand. With this photographic Camera, in particular, film units with integral image carriers can be processed, their light-sensitive material and their image receiving material always aligned with one another both before exposure and after development and are summarized. From the above description it can also be seen that the image carriers to the pressure rollers of the developer distribution device automatically during the transport of the strip-shaped carrier tape and the one arranged thereon Parts "takes place and that this is independent of the position of the photographic camera and of the manner in which the carrier tape is transported. Ensure the various embodiments of the transport device described a more uniform metering of the feed for the

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Carrier tape than can be achieved, for example, in photographic cameras in which the operator uses the free leading end a film unit and pulls it out of the camera .. The equipment of the transport device for the carrier tape with a spring motor or an electric motor facilitates the handling of the photographic for the operator Camera.

VII.

The photographic cameras described in Sections II to VI are essentially suitable for receiving a cassette in which at least one photographic film unit for producing a finished photographic image or a film pack composed of several such film units is arranged. Such photographic cameras can, however, also be provided for receiving a single photographic film unit or a film pack without these being enclosed by a cassette. In one case, the camera has a guide device near the removal opening which, when the film unit is removed from the camera, first feeds the film units to the developer distribution device and then the image carrier along a first movement path and the carrier tape along a different one second path of movement through the removal opening to the outside. In a modified embodiment, the photographic camera can have a collecting device for the waste material arising during development, so that only the image carrier carrying the finished photographic image can be removed from the photographic camera. The collecting device of the camera can be designed as a take-up reel which is preferably coupled to the transport device of the camera. The collecting device or the take-up reel can then be activated by the operator at the appropriate time.

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9 »

be emptied.

VIII,

Course of the development process

The photographic images described in Sections I through VI above Film units can be used to produce single color or multicolor positive final photographic images will. In a three-color system, the imaging material has preferably three emulsion layers, which are assigned certain, each different one of the basic colors Have sensitivity ranges and which also have image dye-producing compounds, their spectral absorption ranges essentially correspond to the specific sensitivity ranges of the corresponding emulsion layer are complementary. This means that a blue-sensitive silver halide emulsion layer with a yellow image dye-forming compound, and a green-sensitive silver halide emulsion layer is in contact with a magenta image dye-providing compound and that finally a red-sensitive silver halide emulsion layer with a is in contact with blue-green image dye-delivering compound.

In the German patent specification (German patent application P 20 52 145.4), to which particular reference is made / it is bei.den image dyes supplying compounds non-diffusing couplers that react with oxidized color developing agents to form diffusing ones Dyes react. However, other image dye-providing compounds are also useful in the present photographic Film units applicable, including e.g. color

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substance developers and coupling dyes. In the mentioned German patent is also described that the image dyes supplying compounds either in their assigned Silver halide emulsion layers or in adjacent thereto Layers are included.

After exposure of the photographic film unit through the transparent developer element or worksheet, an in the developer substance contained opacifier distributed in the manner described above in a layer which at least extends over the area covered by the exposure. As the negative part of the photographic film unit is surrounded by opaque material and since the emulsion layers, as mentioned, are covered by an opacifier, the Film unit has now been loaned and can still be rented removed from the camera during development. The working or developer solution used as a developer substance diffuses through the photosensitive element, thereby initiating imagewise exposure of the silver halide emulsion layers will. There is an image-wise distribution of the diffusing dyes-producing compounds, which in the silver halide emulsion layers or in the layers adjacent thereto, as a function of the imagewise Exposure of the silver halide emulsion layers. At least part of the imagewise distribution of the diffusing dyes supplying compounds diffuses into the image-receiving layer with the generation of a positive dye image, which through the transparent support as a positive, right-hand side legible image against the opaque reflective background can be viewed. It is not necessary that the image receiving layer be separated from the rest of the photographic film unit would have to be separated or that a timing of the development would have to be made.

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The photographic film unit described in connection with Sections I through VI should be in essentially a photographic film unit according to the aforementioned German patent. There are but also image carriers, such as the image carriers described in US Pat. No. 3,415 "644, or other integral image carriers can be used to produce a black and white image.

The alkaline working or developer solution contained in the tear-open container is the usually used aqueous solution of an alkaline compound, e.g. sodium hydroxide, sodium carbonate or an amine, e.g. diethylamine, preferably with a pH of over 12 and an aromatic primary amine color developing agent such as p-phenylenediamine developing agent. The working fluid preferably contains a viscosity-increasing compound, such as a high molecular weight polymer, for example a water-soluble ether which is inert to alkaline solutions, for example hydroxyethyl cellulose or an alkali metal salt of carboxymethyl cellulose, for example sodium carboxymethyl cellulose. The concentration of the viscosity increasing compound is about one to about five percent by weight based on the weight of the working or developing solution, so that the viscosity of the working fluid is about 100 cps. to about 200,000 cps. amounts to. _x

The alkaline developing solution can, as mentioned above, are available in a tearable container of the photographic film unit to contain the developer solution between the transparent developer element and the photosensitive element. introduce in a particularly simple way

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9 *

to be able to. However, other methods of introducing and distributing the developer solution into the image carrier can also be used the film unit may be provided, such as by injecting the developing solution with the aid associated parts that resemble medical hypodermic syringes.

The alkaline solution permeable, substantially opaque light reflective layer of the above-described photographic film unit can contain any opacifying agent. contained, which is dispersed in a binder. Opacifiers which have proven to be particularly advantageous for this layer are those which form white, light-reflecting layers, since in this way, from an aesthetic point of view, a pleasing background is created from which the transferred fabric image stands out well and which also has the desired optical properties in order to be able to reflect the radiation falling on it. Suitable opacifiers for the opaque light-reflecting layer are, for example, titanium dioxide, barium sulfate, zinc oxide, barium stearate, silver flakes, silicates, aluminum oxide, zirconium oxide, zirconium acetylacetate, sodium zirconium sulfate, kaolin, mica or mixtures thereof to a wide range depending on the degree of transparency desired for the light-reflecting layer . The opacifiers can be present in dispersed form in customary binders, as long as only these form a layer which is perihealable for the alkaline working solution. Advantageously, the binder of this layer can, for example, from gelatin or polyvinyl alcohol are made. If it is desired to increase the opacity capacity or the degree of opacity of the light-reflecting layer, these dark-colored opacifying agents such as carbon black, nigrosine dyes and the like can be incorporated. Another way to increase the turbidity capacity or light

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to increase the permeability of the light-reflecting layer, consists in arranging a special opaque layer under it for the alkaline working solution is permeable and consists of a binder in which e.g. carbon black or nigrosine dyes are dispersed. The binder this layer can, for example, also consist of gelatin or polyvinyl alcohol. It has proven to be useful Proven when the opaque light reflective layer generally has a density of at least four, preferably of greater than seven, and is practically opaque to actinic radiation. -

The above-mentioned transparent developing element and the transparent support for the photosensitive element can be made of any transparent material as long as the material does not adversely affect the photographic properties of the film unit and is dimensionally stable. Typical flexible layer supports which are permeable to actinic radiation consist of cellulose nitrate film, cellulose acetate film, poly (vinyl acetal) film, polystyrene film, poly (ethylene terephthalate) film, polycarbonate film, poly- * & -olefin, e.g. polyethylene and polypropylene film, and other polymers , as well as made of glass. In this latter case, only the photosensitive element would be sufficiently elastic to be able to adapt to the layer produced by the developer solution.

The individual elements of the above-described photographic film unit are selected and designed so that they have an attractive outer Gastalt or that they are stiff enough to be handled both inside as well as outside of the camera. However, the structure is also suitable for handling by photographic devices Camera chosen to be flexible enough for him to be

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after a normal turning process by springing back in its starting position again recovered. With the preferred photographic film unit exposed from the top or through the developer element and from the Underside is viewed through the transparent support of the photosensitive element, remain the photosensitive Part of the image carrier of the film unit and any negative image after development on the top hidden by the applied opacifier and on the underside by the opaque light-reflecting layer.

109847/1308

Claims (1)

AOO - 9T- Patenta η. sayings 1) * Photographic film unit for the production of a finished photographic image with an image carrier, who has a photosensitive element that has a light-sensitive first layer in which, when the image carrier is exposed, a latent, developable image and a second layer which acts as an image receiving layer for the latent image of the first layer after its development by a developer substance contained in a container is used, the photosensitive Element of the image carrier is assigned a developer element that is used for. even distribution of the developer substance contributes over the two layers of the photosensitive element, characterized in that the image carrier (3) with a part eAfes ^ Äfgerifandes (2) is releasably connected, on which the container (6) is attached for the developer substance and which with a free guide end (59) adjoining this part for handling the film unit (1) in one for this purpose suitable photographic cameras. 2) film unit according to claim "1, characterized in that for absorbing excess developer substance after Distribution a liquid trap (7) attached to the carrier tape (2) is provided. 'y f . 3) film unit according to claim 1 or 2, characterized in that the photosensitive element (4) and the developer element (5) include an intermediate layer in developing and that the container (6) has an outlet funnel (57) forms, by means of which the developer substance can be supplied to the intermediate layer. 109847/1308 404 4) film unit according to claim 3, characterized in that the outlet funnel (57) at least partially the photosensitive element (4) and the developer element (5). 5) film unit according to one of claims 1 to 4, characterized in that that the image carrier (3) with the carrier tape (2) on the side facing away from its exposure side connected is. 6) film unit according to one of claims 1 to 5, characterized in that the photosensitive element (4) and the developer element (5) aligned with one another and with one another to form an integral image carrier (3) are connected. 7) film unit according to one of claims 2 to 6, characterized in that that the liquid trap (7) detachably with the one facing away from the free leading end (59) of the carrier tape (2) rear end (11) of the image carrier (3) is coupled. 8) film unit according to claim 7, characterized in that the liquid trap (7) as part of the carrier tape (2) is formed which engages around the rear end (11) of the image carrier (3) releasably. 9) film unit according to one of claims 1 to 8, characterized in that the container (6) the free leading end (59) of the carrier tape (2) facing the front end (10) of the image carrier (3) is assigned. 10) film unit according to one of claims 1 to 9, characterized in that the container (6) on the carrier tape (2) is glued on. 109847/1308 - * θι ΑΌΧ 11) film unit according to any one of claims 1 to 10, characterized characterized in that the length of the free leading end (59) of the carrier tape (2) is less than three quarters of the Length of the film unit (1). 12) film unit _r that the image carrier (3) and that the carrier tape (2) is less resilient and flexible than the image carrier according to one of claims 1 to 11, characterized in that resiliently stiff. 13) film unit according to claim 12, characterized in that a sheet (2, 111) made of flexible material as the carrier tape Material is provided which extends substantially under the entire image carrier (3). 14) film unit according to claim 13, characterized in that that the sheet (111) has an additional free end portion (151), the length of which is less than three times the length of the sheet is chosen. 15) Film units combined in a stack to form a film pack according to one of claims 1 to 14, characterized in that 'the carrier tape (111, 141) is a Film unit (107, 4Ο7) via an end part (137, 437) with the film unit following in the film pack (101, 401) is releasably connected. 16) film pack according to claim 15, characterized in that the free leading end (137, 151) of the carrier tape (111) is selected as the * end part, which connects the front end of an image carrier (115, 117) with the rear end of the image carrier of the im Film pack (101) subsequent film unit (107) _/ preferably with the rear end of this film unit _/ releasably connects. 109847/1308 AOi 17) film pack according to claim 15, characterized in that .daß the carrier tape (111, 137, 151) is at least partially narrower than the width of the image carrier (115, 117) 'chooses is. 18) film pack according to claim 16 or 17, characterized in that the point (153) at which the free leading end (137, 151) of a film unit (101) is detachably connected to the rear end (139) of the subsequent film unit, is selected at a distance from the * rear end of the image carrier (115, 117) of this subsequent film unit, the is greater than a quarter of the length of an image carrier between the front and rear ends. 19) Film pack according to one of claims 15 to 18, characterized · characterized in that the carrier tapes of the film units of a film pack form sections (611, 613, 615, 616; -) of a single strip-shaped band (609, 923). 20) film pack according to claim 15, characterized in that the end part (139, 437) of the carrier tape (111; 411) one Film unit (107; 407) with the free leading end (137; 437, 455) of the film unit adjacent in the film pack (101; 401) is releasably connected. 21) film pack according to claim 20, characterized in that the free leading end (437) of the carrier tape as the end part (411) of a film unit (407) is selected Container (419) for the developer substance is folded around the rear end of this film unit and with the front end (455) of the upstream film unit in the film pack is detachably connected. 109847/1308 22) film pack according to one of claims 15 to 18 and. 20 or 21, characterized in that the detachable with each other connected parts (437, 455) of the film units (407) at the connection point, preferably by hand by peeling or peelable. 23) cassette for receiving at least a film unit according to any one of claims 1 to 14 or a film pack according to one of claims 15 to 22 in a closed ^ra substantially interior of the cassette case and a this inner space on one side with the outside of the cassette housing connecting the removal opening, characterized characterized in that in the vicinity of the removal opening (673; 945) a guide device (677; 965) is provided which, when a film unit is removed from the cassette (653; 9O3), the image carrier (605; 905) along a first movement path and the Carrier tape (609; 923) feeds along a curved second movement path to a collecting device (657; 933). 24) cassette according to claim 23, characterized in that the collecting device in that of the removal opening (945) adjacent part of the cassette (903) has a take-up reel (933) between two of the cassette housing (931) protruding side walls (936) is rotatably arranged and on which the leading end of the carrier tape (923) is attached. 25) Cassette according to claim 23, characterized in that the collecting device in that of the removal opening (673) facing away part of the cassette (653) has a take-up reel (657), and that the guide device within the cassette has a deflection device (679) for the carrier tape (609), the leading end of which on the take-up reel is attached. 109847/1308 - KM - 26) cassette according to claim 25, characterized in that the guide device has a pressure body (677), which, viewed in the direction of movement of the carrier tape, is arranged in front of the deflecting device (679) and about the film units of the film pack at the Movement of the carrier tape (609) are guided. 27) cassette according to claim 26, characterized in that the cassette housing (655) has an opening (669), which the movement path of the film unit on the from Releases pressure body (677) defined support point. 28) Cassette according to one of claims 24 to 27, characterized in that the take-up reel (657; 933) with the transport device (957) of a photographic camera (68O; 901) can be coupled. 29) Photographic camera to record at least one Film unit according to one of Claims 1 to 14 or a filepack according to one of Claims 15 to 22 in its Interior, "" one of these interior spaces with the outside the opening connecting the camera and with a Device for distributing the arranged on the Filraeinheit Developer substance within the filing unit, characterized in that in the cave of the removal opening (883, 891) a guide device (825) is provided which, when the film unit (8O7) is removed ans of the camera (801), the fiIro units first of all Developer distributor (823, 824) supplies and then the image carrier (813, 615) along a first Movement belt and the carrier tape (811) along a deviating second movement path through the removal opening drives to the outside. 109847-1308 30} Photographic camera according to claim 29, characterized in that that the first trajectory through a generally straight first guide and that the second Path of movement through a curved. -preferably heavily acclaimed second guide is starred. Photographic camera according to claim 29 or 3O, characterized characterized in that the guide device has a separating body (8611, which the Entnabmeoffnung in a associated with the movement path of the image carrier (813, 8151 first slot (891} and a second slot assigned to the path of movement of the support bracket (8111) (8831 splits. Pbotcgraphisciie camera according to one of claims 29 to 31, characterized in that the developer dispensing means are two a Burckgangsspait for the film unit having forming pressure bodies (823, 824}. Photographic camera for recording at least one Film unit according to one of Claims 1 to 14 or a film pack according to one of Claims 15 to 22 in its interior space, with a vent opening connecting this interior space to the outside of the camera, with a device for distributing the developer substance arranged on the film unit within the film unit and with a transport device for the film unit _t characterized ,, that a guide device is provided near the Entnalnaeöffnung ', the first zufuhrt upon actuation of the transport means the film unit of the developer manifold and (äanacii the along a .ersten Bewegungsbahit by the EntnaimteSffnung according aaßeit nnü <r * as the carrier tape feeds a ... cung along an oavon z '\' - ~ - '«n ^ riding B ^ regcagsbahn. 109847/1308 At* 34) Photographic camera according to claim 33, characterized in ", that the first trajectory through a substantially straight first guide and that the second Movement path is determined by a strongly curved second guide. 35) Photographic camera according to claim 33 or 34, characterized in that the developer distribution device (955) has a pressure body (963) resting against the film unit. 36) Photographic camera according to one of claims 33 to 35, characterized in that the collecting device the camera / rotatably arranged take-up reel. 37) Photographic camera according to claim 36, characterized in, that the take-up reel with the transport device is paired for the film unit. 38) Photographic camera according to one of claims 33 to 37, characterized in that the collecting device on the side of the photographic camera facing away from the guide device and the removal slot of the camera is arranged. 39) Photographic camera for receiving a cassette according to one of claims 26 to 28 in its interior, with a removal opening connecting this interior space to the outside of the camera, a device for Distributing the arranged on the film unit developer substance within the film unit and with a Transport device for this film unit, characterized in that the developer distribution device * has a single pressure body (685) which enters the opening that releases the path of movement of the film unit 1 0 9 8 A 7/13 0 8 $ 40 (669) of the cassette (653) engages and the film unit of the film pack against the pressure body (677) of the cassette '(653) presses. 40) Photographic camera for recording a cassette according to one of claims 23 to 25 in its interior, with a removal opening connecting this interior to the outside of the camera, a device for Distributing the elements arranged on the film unit Winding substance within the film unit and with a Transport device for this film unit, characterized in that the developer distributor device (955) two pressure bodies (963, 965) forming a passage gap for a film unit, preferably pressure rollers, having. 109847/1308