DE74594C - Magazine camera - Google Patents

Description

IMPERIAL

PATENT OFFICE.

CLASS 67: Photographs.

Magazine camera.

The present invention relates to a magazine camera in which all or the essential Movements - lifting and lowering of the plates, advancement of the plate magazine, Tensioning the objective shutter and so on - derived indirectly from a curved thrust washer will. The same should enable a quick and safe work 'by the one-time Back and forth movement of an adjusting lever, respectively, the exposure of a plate. Adjustment for the next recording made. .

Fig. Ι is a side view of the camera, in which the mechanism obscuring The outer plate was thought to be removed and a part of the wall of the im The objective holder located in the front upper camera part is made visible;

Fig. 2 is a front view of the lens holder;

Fig. 2a shows the representation of the objective carrier with the shutter half-open;

Fig. 3 gives a side view of the camera with the mechanisms in the initial position (End position see Fig. 1);

4a, 4b and 4c show three views of the indexing device for the disk magazine;

FIGS. 5 and 6 are partial representations of FIG

Fig. 4;

Ya, yb and each show views of a toothed rack with coupling, by means of which the indexing movement of the indexing mechanism is transmitted to the disk magazine;

Fig. 8 is the sectional view of the disk magazine with the coupling part for the rack on the front and a Bayjonnetverschlufs for the detachable attachment of the Magazine on the magazine case on the back;

9 shows the rear view of the magazine container with the locking device;

Fig. Ioa, ι ob and 10c illustrate the Track disc in front and rear view as well as in section;

Fig. Ι ia, ι ib and 1 ic show the in the upper rear room of the camera arranged frame with ground glass and the shutter for the disk slot;

Fig. 12 is a sectional view of the disk case; from which the device for lifting the plates can be seen, and FIG. 13 is a longitudinal section through the camera, which shows the transport device for the plate container in two positions.

The camera case is α to the division of the actual camera space and a magazine container b by that of Fig. 1 and 3 ersichtliche.Zwischenwand \ divided into an upper and a lower division. The upper section is closed off towards the front by the adjustable object c connected to an extract d, Fig. 1, behind which a ground glass e, which is mounted in an adjustable frame /, Fig. Na, and when the image is focused is observed through a peephole in the rear closure wall (FIG. 11 a). The photosensitive plates are accommodated in a common plate container (magazine) h, FIG. 8, which is inserted in a light-tight manner in a further container m .

By means of the device shown in FIG. 12, these plates are individually, after the magazine h by means of the transport ^{device & 4} , FIGS. 1 and 7, the shaft k ^e , of the gear wheel A; ² and 'finally the ^{rack (Fig. 7) engaging the magazine at / 8} has been advanced by the plate spacing, lifted out and inserted through the slot j =: ¹ , Fig. Ι ia, in the partition wall \ into the upper space, this slit ^ ^1, Fig. iia is covered by a slide ^ ⁶ which opens shortly before the passage of the plate, and after completion of the passage immediately asleep again, and under a rail f ³ of the focusing screen e arranged such, that the upwards rising to The exposing plate hits back the ground glass screen e to the rear and assumes its position.

After exposure, the slide ^ ^{6 is} opened and the plate is returned to the magazine, which now advances again by the plate spacing in order to present a second plate to the gripper device (Fig. 12) for transfer to the exposure position.

The device for actuating the mentioned mechanisms is, as can be seen from FIGS. 1 and 3, attached to the side wall of the camera and is covered by a protective plate, which is intended to be removed in the accompanying drawings. Those parts which are present twice, that is to say are also arranged on the opposite wall, are vertically displaceable toothed racks η and gearwheel sectors 0 which are in engagement with them and which the latter, ^{fastened on the continuous shaft o 1} , perform the same movements.

The ascending and descending movement of the racks η corresponding to a certain angular deflection of these sectors is derived from the cam thrust disk s, which serves as a common drive element, by means of the link o ³ , which engages the rear side of the disk 5.

The individual mechanisms are actuated in the sequence explained below by the partial rotation of this disk s, which is approximately 180 ° and takes place between the limit positions A, Fig. 3, as the starting position and O, Fig. 1, as the end position.

The thrust collar is s in its initial position A, Fig. 3, and the magazine container m is not used in the apparatus, the disc is s by incidence of the resilient lever b \ Fig. 3, b in the recess, Fig. Ioa and ioc, determined against twisting. The rear end plate of the rear camera room (Fig. 11) allows the first focus adjustment of the image, which is done with the aid of the frame f, Fig. 11, and the objective c, Fig. 1, through the viewing hole which is open in the above-mentioned position .

The assembly frame shown in FIG. 11 is fastened to a shaft _- / ^{1 lying in the bearings / 2} and consists of two side walls which are adequately held at the top by a rail and at the bottom by the shaft f ^l.

Between these two walls, the ground glass screen e is rotatable on the shaft f ¹ and under the action of a spring. The rail / ³ , Fig. 11a, which closes off the ground glass at the bottom, looks directly over the above-mentioned slot ^ ¹ when the frame is in the perpendicular position and has the task of knocking the ground glass backwards when a light-sensitive plate rises. In order to be able to give the screen different inclinations, the frame is provided with gearwheel segments on both of its walls, through which the setting is carried out from the shaft / ⁴ .

If, according to the measurements of the object to be recorded, this ground glass screen has been found in a suitable position, the image is brought into focus. For this purpose the objective c, Fig. 1, 2, and 2a upstream of the disk e is fastened in a frame t, Fig. 2,, which sits on two toothed racks / ² Z ² , so that an alignment of the lenses in axial direction through the gearwheels Z 'and the spindle /, Fig. 2, can be made from the outside.

According to FIG. 2a, the objective c receives laterally seated pins c ² c ³ , by means of which it is inserted into corresponding recesses in a ring fastened ^{on the objective mount c 1.} By turning a coupling ring to the left (Fig. 2), the objective is firmly united ^{with the carrier c l.} An automatically acting torque lock is switched on in this device. A shaft i is embedded in a tab attached to the underside of the carrier ring, which extends into the shield of the objective, which is composed of two disks, and carries a sector g lying in it, which is shown in FIG. 2a in a half-open position. Through the levers i ¹ ,; * ² and i ³ , movement from the shaft p ¹ is communicated to this sector g in that it is guided by means of a wedge and groove (Fig. 1) in the arm ρ , which in turn is the indirect drive of the Curve thrust washer s from receives.

The setup of the magazine and its transport mechanism is as follows:

The magazine consists of a container, the side walls of which do not quite reach the height of the front and rear walls and are equipped with guide grooves for the plates j on the inside. This magazine box h is pushed into a container m and means

a screw lock attached to the rear wall of the magazine /? ² , Figs. 8 and 9, connected to it in such a way that a quarter turn of the part /? ² two pins representing the thread engage in the screw grooves of the cylindrical part h ¹ and unite the magazine h with the container m. In the reverse, the connection between the magazine h and the container m loosening rotation of the part h ' ² , two resilient bolts m ^a , Fig. 9, which are attached to the outside of the container h , emerge laterally from the walls and secure the Container against displacement within the camera.

At the same time, there is a slight advance of the magazine h, which leads to its coupling with the transport device r \ FIG. 7. The transport device, the task of which is to take over the step-by-step transport of the disk magazine, is guided in a console storage r by the strips r ⁵ , FIG. 7 b. In order to be able to remove the magazine container from the camera during operation, the coupling claws are made accessible from the outside by attaching a rail r ³ to the side of the rack, which is slidable by means of a pin r ⁴ in a slot provided in the rack will. ^{The claws r 2} and r ⁶ held in the coupling position by the spring r ⁷ , FIG. 7c, are both articulated to the rack in such a way that they are brought into the spread position ^{by moving the rail r 3 and release part r 8 of} the magazine.

The mode of operation of this device is as follows: After the disk magazine h inserted into the box m has been inserted into the housing of the camera, the box m is moved into its normal position by rotating the part / z ^{2, FIG} Pins w ³ fixed and then, with further rotation of h ^2, the magazine h with the small sleeping block r ^{8 is} inserted into the resilient claw r ² r ^{6 of} the rack in its end position (FIG. 7).

If one wishes to take out the magazine after using the camera, one first takes out the box m and then releases the magazine through Vorstofsen the rail r ³ , Fig. 7a, whereupon it can also be removed. This release takes place here because the rounded head of the rail r ³ spreads the claws r ² r ^6, which are under the action of a spring. The rail is guided on pin r ⁹ by means of a slot and is attached to the rack by a pin r ⁱ sliding in the latter slot.

The movement to be transmitted by this mechanism is absorbed by the locking mechanism shown in FIGS. 1, 3, 4 and 5 from the track disk s through the levers u and k ³ . This locking mechanism consists of two locking wheels Around A: ¹⁰ , Fig. 4c, which are keyed onto the spindle k® and have a locking effect in both directions of rotation. The wheel k ⁷ is subject to the influence of two pawls k ⁹ and A: ⁵ and the other Ar ^{10 to} that of the pawl k ^s . A further pawl k ^{1 is} arranged on the latter (FIG. 5), which is actuated by the pin k ^{11 of} the pawl k ^b.

The circuit takes place, starting from the position of the lever k ^A in Fig. 1, as follows:

If the said lever k ^l its movement in the sense of the arrow drawn in, so stöfst the pin k ¹¹ first against the Hufsklinke k \ 4a, thus lifting the pawl A (Fig. 1):. ^8, and thus gives the wave k ^a free to rotate. When the lever ⁴ falls, the pin k ^u slides past the auxiliary pawl, while the lever k® prevents any reverse rotation of the wheel k ⁷ . Each stroke of the lever k ^e corresponds to the progressive rotary movement of the little wheel k ⁷ around one tooth, and this in turn corresponds to the progressive movement of the disk magazine around the size of the disk spacing. The rotary plate q arranged below the indexing device is subject to the action of a spring q ¹ and has the purpose of securing the functions of the torque lock by correctly guiding the pin 'w * in the disk s.

The mechanism for raising and lowering the photosensitive plates is shown in FIG. A gripper a is attached to each of the racks η actuated by the gear sectors ο inside the camera. Such a gripper is attached to a rack by a pin x ^{2 located} in η by means of a split pin, while a second pin x ^{3 located} in the gripper engages in a slot in the rack η , provided that the position of the gripper indicates the effect of the spring n ^{1 is} not allowed. 12 shows a cross section through the camera and the imaginary magazine h pushed out of the container m. The contours of the container m are indicated here with dotted lines.

If the grippers are in the initial position (at position A of the disk s), they lie against the inner walls of the camera and slide from this vertical position into a downward one as soon as the tail ends x ¹ emerge from the initial position.

The slightly wider, perforated head of the gripper slides when the rack rises on the outer wall of the

The holder m of the emerging magazine h and finally falls over the pin y of the plate j. At this moment the slide ^{6 of} the plate opens the passage to the upper room of the camera, the plate rises when the plate s is turned , turns the ground glass plate e backwards and assumes its position. When the slide ^ ⁶ is opened, the viewing hole in the rear closure wall of the upper camera room closes at the same time. In this position of the plate, the curve thrust disk 5 has completed its clockwise rotation and assumes the position shown in FIG. The subsequent return of the plate to the magazine is first of all preceded by the opening of the slide ^ · ⁰ , which also receives its movement drive by means of the rails ν and i> ² from the track disk s. As Fig. 1 ia and lic show, the slide device consists of a rail ^ ⁵ , which is connected to the slide ^{rail ^ 6} by two angle levers ^ ⁴ and to which the lever ^ ⁷ is hinged with the pin ^ ⁹ , the latter extends out of the camera and is encompassed by the rail v ^1. After the slot ^ ^{1 has been} uncovered, the plate hanging in the grippers χ lowers and again steps back into the magazine. When the plate goes down, the ground glass returns to its normal position, whereupon the slide ^ ⁶ closes the passage slot ^.

When the exposed plate re-enters the magazine, a work process is ended. The cam thrust washer 5 performed a rotary movement from its starting position A to the end position O and from this back to the starting position, the clockwise rotation corresponding to the rise of the racks η and the counterclockwise rotation corresponding to their movement from the upper to the lower limit position.

It now remains to discuss the moment lock, as well as its actuation.

The curved thrust washer has on its rear side according to FIGS. 1b and 10c a self-contained track s ^{2 , in which a switch s 4,} which is subject to the action of a leaf spring, is switched on. The track s ² runs in two concentric tracks, which unite in a short radial track.

By means of the levers w ( rotatable by n> ¹ ) and W ^ the train operates the torque lock in the following way:

If the disk r assumes its initial position A, FIG. 3, then the pin w * of the rail w is located at the point s ^B , FIG. The sector disk g is congruent with the objective glasses, ie it allows the light rays to enter the camera. With a clockwise rotation (Fig. 3) the pin W ^ enters the outer concentric part of the path s ² . At the moment of entering this concentric track, the objective is closed. The photosensitive plate is lifted into the upper chamber, and after it has reached its highest position, the pin j ^ ^{4 moves} into position s ⁶ . At this moment the spring ^ ¹ applied to the angle lever q comes into effect, with the result that the pin w ^ momentarily skips over from s ⁶ to position s ¹ .

The lever q ^s , to which the spring q ^{1 is} applied, is arranged over a ratchet rack q ⁴ , Fig. I, so that you have it in your hand to keep the spring q ¹ more or less tensioned, ie the functions of the To be able to regulate the moment lock as required.

The transport of the disk magazine takes over the wedged on the shaft k ⁶ wheel & ² , Fig. Ι and 3, which ^{drives a rack r 1} , Fig. 7a, 7b and 7c. On the underside of this rack r ^{1 , an arm r 2 is} hinged at its free end into a claw, which, together with a second claw r ⁶ articulated above the rack, forms a coupling, the claw parts of which are supported by a spring r ⁷ be held together.

In the middle of a pin r ⁴ , which slides in a slot provided in the rack, a rail r ^{3 is} connected to the latter, which is cranked downwards at the rear and protrudes from the wall to which the console bearing r of the rack r ^{1 is} attached, so that it protrudes the rail r ^{3 is} accessible from the outside. The front end of the rail is slotted and is guided by a pin sitting on the rack in such a way that the rail r ³ passes between the claw parts r ² and r ⁶ when moving forward and spreads them apart, so that the one sitting on the disk magazine and the connection mediating sleep block r ⁸ released and the triggering is thereby effected. When the pressure against the rail r ³ is released, the spring r ⁷ comes into effect, which closes the 'claws r ² r ⁶ by pushing the rail back and thus makes ready for a renewed coupling of the disk magazine to the feed device.

Claims (1)

Patent Claims: ι. A magazine camera, characterized in that the movements for cocking the shutter, for raising and lowering the plates. a disc magazine (h) _r is incremented which gradually, and for temporarily opening a covered by the slide (\ ⁶ J through slot (% ¹ -) from a Curvenschub- Disc fs) , which acts on toothed racks (n) lifting and lowering sectors (o) and on levers (u ν w) , which the latter maintain their movement with a partial rotation of the disc fs).
2. At the under i. The above-mentioned magazine camera is the device for actuating the shutter regardless of the adjustability of the objective, consisting of a drive pin fi) mounted on the adjustable objective frame (c ¹ ) parallel to the setting direction in connection with the levers fi ¹ z ' ² i ³ ) and one through a Arm (ρ) actuated rotating rod fp ¹ ), which can be pulled out with the objective carrier (c ¹ ) , to which the locking movement to be mediated by a pin fw ^) engaging in a curve nut s ^{2 of} the cam disk fs) is transmitted under the control of a lever (q) will. At the under ι. marked magazine camera, the device for locking and initial adjustment of the plate container fh) received by a special insert box fm) , consisting of an externally adjustable nut fh ² ) in engagement with a screw fh ¹ ) attached to the magazine ^) in the arrangement, DAF set by rotation of the latter, the container fm) in the camera and the magazine fh) released and provided with a r by the rail fr ^s) from without releasable coupling for ^{2 e)} and occasioned by a locking device fk) for stepwise locomotion rack fr ¹ ) is coupled so that each time the disc fs) is lifted, the magazine presents a plate to be exposed to the lifting device For this purpose 2 sheets of drawings.