CA2170707A1 - Storage device for strip-shaped photographic copy material - Google Patents
Storage device for strip-shaped photographic copy materialInfo
- Publication number
- CA2170707A1 CA2170707A1 CA 2170707 CA2170707A CA2170707A1 CA 2170707 A1 CA2170707 A1 CA 2170707A1 CA 2170707 CA2170707 CA 2170707 CA 2170707 A CA2170707 A CA 2170707A CA 2170707 A1 CA2170707 A1 CA 2170707A1
- Authority
- CA
- Canada
- Prior art keywords
- storage device
- copy material
- interior
- disk
- rotation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/32—Details specially adapted for motion-picture projection
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
- G03D13/00—Processing apparatus or accessories therefor, not covered by groups G11B3/00 - G11B11/00
- G03D13/003—Film feed or extraction in development apparatus
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photographic Developing Apparatuses (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
Abstract
A storage device for strip-shaped photographic copy material has an inlet, through which the copy material is brought into the interior of the storage device, and an outlet, through which the copy material is again removed from the interior of the storage device.
The storage device transports the material which had entered the interior of the storage device using a disk, rotatable around an axis of rotation, against which a lateral edge of the entered copy material rests. The copy material entering the storage device enters the outer area of the interior which is farthest distant from the axis of rotation of the disk. However, the copy material leaving the interior is passed out of the storage device in the inner area close to the axis of rotation of the disk.
The storage device transports the material which had entered the interior of the storage device using a disk, rotatable around an axis of rotation, against which a lateral edge of the entered copy material rests. The copy material entering the storage device enters the outer area of the interior which is farthest distant from the axis of rotation of the disk. However, the copy material leaving the interior is passed out of the storage device in the inner area close to the axis of rotation of the disk.
Description
STORAGE DEVICE FOR STRIP-SHAPED PHOTOGRAPHIC COPY MATERIAL
BACKGROUND OF THE INVENTION
Field of the Invention:
The invention relates to a storage device for strip-shaped photographic copy material with an inlet, through which the copy material enters into the interior of the storage device, and with an outlet, through which the copy material is again removed from the interior of the storage device, and with means for transpo, ling the copy material which had entered the interior of the storage device.
State of the Art:
Such storage devices are quite common in photographic processing lines, such as are employed in industrial finishing laboratories. Copies are prepared in very large numbers and in many cli~rent variations from photographic ",aster~ in such finishing laboratories.
The most often used variation is the preparation of paper pictures by copying the negative image field of a film onto light-sensitive photographic paper.
At present practically all steps in such a processing line are performed more or less auto",dlically. Those stdlions in such a processing line which deal with the treatment of the film and the photographic paper will be briefly described in what follows.
The film is first developed in a film dcveloping station. Subsequently the developed film is passed on to the copying station. There, the individual negative images are measured and the required amounts of light for copying are d~ r",ined, Therea~Ler the negative image fields are copied onto light-sensitive photographic paper by means of the determined amounts of copying light. Such a copying station is also called a printer. The exposed photographic paper then is taken to a paper development station in which the paper pictures are developed by a wet chemical process. Such a paper developmentstation is also called a paper processor.
The above described processing of the films as well as the photographic paper takes place in the form of long strips. Prior to their actual processing, the individual films are spliced together. The photographic paper is made available from the outset in the form of a roller on which a long strip of photographic paper has been wound.
`_ 2170707 The individual stations in such a processing line, the printer in particular, in part operate with fluctuations in the processing speed. But, since the reler,lion time in the paper processor must be constant for the even development of the exposed photographic paper, it is necessary to compensate for the fluctuations in the processing speed of the printer in some way, otherwise it would be necessary to continuously disrupt the operation of the printer in case of fluctuations in the processing speed.
So-called intermediate storage devices, hereindrler called storage devices, are employed bel-veen the individual stations of the processing line for this purpose. Between the printer and the paper processor in particular this is of course a paper storage device (analogously this is a film storage device between the film development station and the printer).
During the operation of a processing line, this paper storage device is filled with photographic paper in a defined amount so that it is possible to compensate upward as well as downward fluctuations in the processing speed by filling or emptying the storage device.
Paper storage devices of this type are known, for example from U.S. Patent No.
4,782,354 or U.S. Patent No. 5,237,359. These storage devices basically serve the above mentioned purpose. But for structural reasons, both storage devices are of a relatively large size. However, today the focus is more and more in the direction of continuously reduced space require",enls. In addition, the structural outlay for these storage devices is co",parali~/ely large, particularly as far as the transport of the paper in the interior of the storage device is concerned.
SUMMARY OF THE INVENTION
It is therefore an object of the invention to provide a storage device requiringcomparatively liKle space, which at the same time requires little structural outlay. The storage device is furthermore constructed in such a way that it can be emptied pra~;~ically completely during operation.
This object is attained by a storage device which, on the one hand has reduced space requirements and, on the other hand, has a low structural outlay. Further, such a storage device is dependable and cost-effective in its manufacture.
The invention will be explained in detail below by means of the schematic and/orsectional drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention can be further understood with reference to the following description and the appended drawings wherein like elements are provided with the same reference numerals. In the drawings:
Fig. 1 is a top view of an exe",plary embodiment of a storage device in the emptied state in accordance with the invention;
Fig. 2 is a top view of the storage device of Fig. 1 during filling and in a partially filled state;
Fig. 3 is a top view of the storage device of Fig. 1 while being emptied; and Fig. 4 shows the storage device of Fig. 1 in a lateral view.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The light-proof housing as well as the light-proof inlet and the light-proof outlet have been omitted in the top view of the exe~,plary embodiment of the storage device in accordance with the invention represeriled in Fig. 1 so that the interior features of the storage device can be better viewed. At its inlet, the storage device 1 comprises a first roller pair 2 between which the photographic paper P is guided into the interior of the storage device. The storage device further comprises a circular base plate 3 on which a plurality of rollers 31 are rotatable seated with the aid of holders 30 (Fig. 4) along the circ~" "terence of the base plate. The storage device further comprises a disk 4, which is rotatable around an axis of rotation A and can be driven in the direction of the arrow R by means of a motor 40 (Figs. 2 4). A further disk 5 is disposed near the axis of rotation A on whose circumference several rollers 51 are disposed. I lo~evcr this disk 5 is disposed fixed in position and is not rotatable around the axis of rotation A. A further roller pair 6 is disposed near the axis of rulalion A for guiding the photographic paper P.
The storage device 1 is not yet filled in Fig. 1 the photographic paper P has only been threaded in and is held by the roller pair 6. First the storage device is filled to a certain level for establishing the operational stage. For this purpose photographic paper is introduced into the interior of the storage device with the aid of the roller pair 6. This is accomplished in that the paper is fed to the outer area of the interior wherein the term outer area constitutes the area farthest away from the axis of rotation A. The motor 40 drives the ~ 2170707 disk 4 at the time photographic paper is introduced into the interior of the storage device.
The introduction of photographic paper P into the interior can be detected with the aid of suitable sensor devices (not shown). These sensor devices then generate a signal which is supplied to the motor 40, which as a result of this signal drives the disk 4, against which a lateral edge of the photographic paper rests. It is understood that the disk 4 can be driven at variable speeds or at a constant speed, depending on the speed with which thephotographic paper P is suppl cd from the printer to the storage device 1.
The storage device 1 can be seen in its partially filled state in Fig. 2. It can also be easily seen in Fig. 2 that the photographic paper P is fed into the outer area of the interior of the storage device. It is assumed in the following descri,ulion of filling the storage device that in this instant no photographic paper had been taken out of the outlet of the storage device; i.e., the roller pair 6 only holds the photographic paper in place at this instant. A
loop S is formed in the interior when the storage device is filled, which in the course of continued feeding of photographic paper P in the direction of rotation of the disk 4 (arrow R
in Fig. 1 ) is wound layer by layer around the circumference of the disk 5, in particular along the rollers 51 disposed there. Every time the loop S has made a turn around the rollers 51, another layer has been wound around the disk 5.
Finally, in Fig. 3 the storage device in shown in a state wherein a portion of the photographic paper P, which was stored in the interior of the storage device 1, has already been pulled out through the outlet; i.e., for example when the station behind the storage device 1 (for example, the paper processor) pulls photographic paper P from the storage device 1 through the outlet for developing it by a wet chemical process. By way of si",pliricalion it has been assumed in connection with Fig. 3 that no photographic paper enters the interior through the inlet anymore; i.e. that the roller pair 2 only holds the photographic paper P, and that the subsequent station, for example the paper processor, has already pulled some photographic paper P out of the storage device. The fact that photographic paper P has already been pulled out of the storage device 1 is particularly noticeable in Fig. 3 because the loop S no longer exists. Thus, at least a sufficient amount of photographic paper has been pulled so that the loop S no longer exists.
For a simplified explanation, the processes of filling and emptying the storage device 1 have been respectively considered separately and it was assumed that only one process at a time takes place. It is of course possible that during the operation of the processing line the processes of filling and emptying of the storage device 1 can easily take place simultaneously, wherein the speeds of the two processes of filling and emptying can easily `- 2170707 be different. So that there are no interruptions in the operation, the storage device 1 is filled to a defined level prior to the start of operations, so that it is possible to immediately compensate speed fluctu~tions in both directions already at the start of operations. Thus, at the start of operations the storage device 1 can be filled to a defined degree with exposed photographic paper P coming from the printer, for example up to 70% or lesser or greater, before the paper processor starts to pull the photographic paper out of the storage device 1.
The storage device 1 is again represented in Fig. 4 in a lateral view and partially in section. In this case the storage device 1 is shown in an operalional position; i.e.
essentially in a horizontal plane. However, it can also be operated in a vertical plane, or in a plane arbitrarily inclined with respect to one of the two planes. The described storage device is dependable, space-saving and simple with respect to structural outlay.It will be appreciated by those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The presently clisclosed embodiments are therefore considered in all respect~ to be illustrative and not re~lril;ted. The scope of the invention is indic~ted by the appended claims rather than the foregoing description and all changes that come within the meaning and range and equivalence thereof are intended to be embraced therein.
BACKGROUND OF THE INVENTION
Field of the Invention:
The invention relates to a storage device for strip-shaped photographic copy material with an inlet, through which the copy material enters into the interior of the storage device, and with an outlet, through which the copy material is again removed from the interior of the storage device, and with means for transpo, ling the copy material which had entered the interior of the storage device.
State of the Art:
Such storage devices are quite common in photographic processing lines, such as are employed in industrial finishing laboratories. Copies are prepared in very large numbers and in many cli~rent variations from photographic ",aster~ in such finishing laboratories.
The most often used variation is the preparation of paper pictures by copying the negative image field of a film onto light-sensitive photographic paper.
At present practically all steps in such a processing line are performed more or less auto",dlically. Those stdlions in such a processing line which deal with the treatment of the film and the photographic paper will be briefly described in what follows.
The film is first developed in a film dcveloping station. Subsequently the developed film is passed on to the copying station. There, the individual negative images are measured and the required amounts of light for copying are d~ r",ined, Therea~Ler the negative image fields are copied onto light-sensitive photographic paper by means of the determined amounts of copying light. Such a copying station is also called a printer. The exposed photographic paper then is taken to a paper development station in which the paper pictures are developed by a wet chemical process. Such a paper developmentstation is also called a paper processor.
The above described processing of the films as well as the photographic paper takes place in the form of long strips. Prior to their actual processing, the individual films are spliced together. The photographic paper is made available from the outset in the form of a roller on which a long strip of photographic paper has been wound.
`_ 2170707 The individual stations in such a processing line, the printer in particular, in part operate with fluctuations in the processing speed. But, since the reler,lion time in the paper processor must be constant for the even development of the exposed photographic paper, it is necessary to compensate for the fluctuations in the processing speed of the printer in some way, otherwise it would be necessary to continuously disrupt the operation of the printer in case of fluctuations in the processing speed.
So-called intermediate storage devices, hereindrler called storage devices, are employed bel-veen the individual stations of the processing line for this purpose. Between the printer and the paper processor in particular this is of course a paper storage device (analogously this is a film storage device between the film development station and the printer).
During the operation of a processing line, this paper storage device is filled with photographic paper in a defined amount so that it is possible to compensate upward as well as downward fluctuations in the processing speed by filling or emptying the storage device.
Paper storage devices of this type are known, for example from U.S. Patent No.
4,782,354 or U.S. Patent No. 5,237,359. These storage devices basically serve the above mentioned purpose. But for structural reasons, both storage devices are of a relatively large size. However, today the focus is more and more in the direction of continuously reduced space require",enls. In addition, the structural outlay for these storage devices is co",parali~/ely large, particularly as far as the transport of the paper in the interior of the storage device is concerned.
SUMMARY OF THE INVENTION
It is therefore an object of the invention to provide a storage device requiringcomparatively liKle space, which at the same time requires little structural outlay. The storage device is furthermore constructed in such a way that it can be emptied pra~;~ically completely during operation.
This object is attained by a storage device which, on the one hand has reduced space requirements and, on the other hand, has a low structural outlay. Further, such a storage device is dependable and cost-effective in its manufacture.
The invention will be explained in detail below by means of the schematic and/orsectional drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention can be further understood with reference to the following description and the appended drawings wherein like elements are provided with the same reference numerals. In the drawings:
Fig. 1 is a top view of an exe",plary embodiment of a storage device in the emptied state in accordance with the invention;
Fig. 2 is a top view of the storage device of Fig. 1 during filling and in a partially filled state;
Fig. 3 is a top view of the storage device of Fig. 1 while being emptied; and Fig. 4 shows the storage device of Fig. 1 in a lateral view.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The light-proof housing as well as the light-proof inlet and the light-proof outlet have been omitted in the top view of the exe~,plary embodiment of the storage device in accordance with the invention represeriled in Fig. 1 so that the interior features of the storage device can be better viewed. At its inlet, the storage device 1 comprises a first roller pair 2 between which the photographic paper P is guided into the interior of the storage device. The storage device further comprises a circular base plate 3 on which a plurality of rollers 31 are rotatable seated with the aid of holders 30 (Fig. 4) along the circ~" "terence of the base plate. The storage device further comprises a disk 4, which is rotatable around an axis of rotation A and can be driven in the direction of the arrow R by means of a motor 40 (Figs. 2 4). A further disk 5 is disposed near the axis of rotation A on whose circumference several rollers 51 are disposed. I lo~evcr this disk 5 is disposed fixed in position and is not rotatable around the axis of rotation A. A further roller pair 6 is disposed near the axis of rulalion A for guiding the photographic paper P.
The storage device 1 is not yet filled in Fig. 1 the photographic paper P has only been threaded in and is held by the roller pair 6. First the storage device is filled to a certain level for establishing the operational stage. For this purpose photographic paper is introduced into the interior of the storage device with the aid of the roller pair 6. This is accomplished in that the paper is fed to the outer area of the interior wherein the term outer area constitutes the area farthest away from the axis of rotation A. The motor 40 drives the ~ 2170707 disk 4 at the time photographic paper is introduced into the interior of the storage device.
The introduction of photographic paper P into the interior can be detected with the aid of suitable sensor devices (not shown). These sensor devices then generate a signal which is supplied to the motor 40, which as a result of this signal drives the disk 4, against which a lateral edge of the photographic paper rests. It is understood that the disk 4 can be driven at variable speeds or at a constant speed, depending on the speed with which thephotographic paper P is suppl cd from the printer to the storage device 1.
The storage device 1 can be seen in its partially filled state in Fig. 2. It can also be easily seen in Fig. 2 that the photographic paper P is fed into the outer area of the interior of the storage device. It is assumed in the following descri,ulion of filling the storage device that in this instant no photographic paper had been taken out of the outlet of the storage device; i.e., the roller pair 6 only holds the photographic paper in place at this instant. A
loop S is formed in the interior when the storage device is filled, which in the course of continued feeding of photographic paper P in the direction of rotation of the disk 4 (arrow R
in Fig. 1 ) is wound layer by layer around the circumference of the disk 5, in particular along the rollers 51 disposed there. Every time the loop S has made a turn around the rollers 51, another layer has been wound around the disk 5.
Finally, in Fig. 3 the storage device in shown in a state wherein a portion of the photographic paper P, which was stored in the interior of the storage device 1, has already been pulled out through the outlet; i.e., for example when the station behind the storage device 1 (for example, the paper processor) pulls photographic paper P from the storage device 1 through the outlet for developing it by a wet chemical process. By way of si",pliricalion it has been assumed in connection with Fig. 3 that no photographic paper enters the interior through the inlet anymore; i.e. that the roller pair 2 only holds the photographic paper P, and that the subsequent station, for example the paper processor, has already pulled some photographic paper P out of the storage device. The fact that photographic paper P has already been pulled out of the storage device 1 is particularly noticeable in Fig. 3 because the loop S no longer exists. Thus, at least a sufficient amount of photographic paper has been pulled so that the loop S no longer exists.
For a simplified explanation, the processes of filling and emptying the storage device 1 have been respectively considered separately and it was assumed that only one process at a time takes place. It is of course possible that during the operation of the processing line the processes of filling and emptying of the storage device 1 can easily take place simultaneously, wherein the speeds of the two processes of filling and emptying can easily `- 2170707 be different. So that there are no interruptions in the operation, the storage device 1 is filled to a defined level prior to the start of operations, so that it is possible to immediately compensate speed fluctu~tions in both directions already at the start of operations. Thus, at the start of operations the storage device 1 can be filled to a defined degree with exposed photographic paper P coming from the printer, for example up to 70% or lesser or greater, before the paper processor starts to pull the photographic paper out of the storage device 1.
The storage device 1 is again represented in Fig. 4 in a lateral view and partially in section. In this case the storage device 1 is shown in an operalional position; i.e.
essentially in a horizontal plane. However, it can also be operated in a vertical plane, or in a plane arbitrarily inclined with respect to one of the two planes. The described storage device is dependable, space-saving and simple with respect to structural outlay.It will be appreciated by those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The presently clisclosed embodiments are therefore considered in all respect~ to be illustrative and not re~lril;ted. The scope of the invention is indic~ted by the appended claims rather than the foregoing description and all changes that come within the meaning and range and equivalence thereof are intended to be embraced therein.
Claims (6)
1. A storage device for strip-shaped photographic copy material comprising:
an inlet through which copy material enters an interior of the storage device; an outlet, through which the copy material is removed from the interior of the storage device;
and means for transporting the copy material which had entered the interior of the storage device, said means for transporting the entered copy material further comprising:
a disk which is rotatable around an axis of rotation, against which a lateral edge of the copy material rests, the copy material entering the storage device in an outer area of the interior which is farthest distant from the axis of rotation of the disk, and the copy material leaving the interior of the storage device in an inner area close to the axis of rotation of the disk.
an inlet through which copy material enters an interior of the storage device; an outlet, through which the copy material is removed from the interior of the storage device;
and means for transporting the copy material which had entered the interior of the storage device, said means for transporting the entered copy material further comprising:
a disk which is rotatable around an axis of rotation, against which a lateral edge of the copy material rests, the copy material entering the storage device in an outer area of the interior which is farthest distant from the axis of rotation of the disk, and the copy material leaving the interior of the storage device in an inner area close to the axis of rotation of the disk.
2. A storage device as recited in claim 1, wherein the inlet is disposed in the outer area of the storage device, said storage device further comprising:
separate guide means disposed, fixed in place, in the inner area near the axis of rotation of the disk, through which the copy material is guided.
separate guide means disposed, fixed in place, in the inner area near the axis of rotation of the disk, through which the copy material is guided.
3. A storage device as recited in claim 2, wherein the inlet and the guide meanseach further comprise:
a roller pair, between which the copy material is guided.
a roller pair, between which the copy material is guided.
4. A storage device as recited in claim 1, wherein the outlet is disposed in theinner area near the axis of rotation of the disk.
5. A storage device as recited in claim 2, wherein the outlet is disposed in theinner area near the axis of rotation of the disk.
6. A storage device as recited in claim 3, wherein the outlet is disposed in theinner area near the axis of rotation of the disk.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP95810132.1 | 1995-03-02 | ||
| EP95810132A EP0730199A1 (en) | 1995-03-02 | 1995-03-02 | Storage device for weblike photographic copying material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2170707A1 true CA2170707A1 (en) | 1996-09-03 |
Family
ID=8221708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2170707 Abandoned CA2170707A1 (en) | 1995-03-02 | 1996-02-29 | Storage device for strip-shaped photographic copy material |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0730199A1 (en) |
| JP (1) | JPH08262683A (en) |
| CA (1) | CA2170707A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29717019U1 (en) * | 1997-09-23 | 1999-01-28 | Gretag Imaging Ag, Regensdorf | Spiral memory |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1713939A (en) * | 1925-11-02 | 1929-05-21 | Charles O Wingren | Control mechanism for film feed |
| US2281328A (en) * | 1940-12-12 | 1942-04-28 | Ampro Corp | Motion picture projector |
| US2837332A (en) * | 1953-05-21 | 1958-06-03 | Busch Edwin | Continuous film reel |
| US3034399A (en) * | 1959-07-02 | 1962-05-15 | Goepel Oscar | Continuous film feed |
| US4169566A (en) * | 1975-09-29 | 1979-10-02 | Eprad Incorporated | Film supply and take-up system for motion picture projector |
-
1995
- 1995-03-02 EP EP95810132A patent/EP0730199A1/en not_active Withdrawn
-
1996
- 1996-02-29 CA CA 2170707 patent/CA2170707A1/en not_active Abandoned
- 1996-03-04 JP JP7317396A patent/JPH08262683A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08262683A (en) | 1996-10-11 |
| EP0730199A1 (en) | 1996-09-04 |
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| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |