GB1342572A - Manufacture of photographic film units - Google Patents
Manufacture of photographic film unitsInfo
- Publication number
- GB1342572A GB1342572A GB2878471A GB2878471A GB1342572A GB 1342572 A GB1342572 A GB 1342572A GB 2878471 A GB2878471 A GB 2878471A GB 2878471 A GB2878471 A GB 2878471A GB 1342572 A GB1342572 A GB 1342572A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strip
- laminate
- sheet
- sheets
- liquid
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
- G03C8/42—Structural details
- G03C8/44—Integral units, i.e. the image-forming section not being separated from the image-receiving section
- G03C8/46—Integral units, i.e. the image-forming section not being separated from the image-receiving section characterised by the trapping means or gas releasing means
-
- 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
- G03B21/43—Driving mechanisms
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
- Photographic Developing Apparatuses (AREA)
Abstract
1342572 Manufacturing film units POLAROID CORP 18 June 1971 [18 June 1970 20 April 1971] 28784/71 Heading G2A Photographic film units are made by a continuous process of adhering a sheet of photosensitive material across the frame opening 28 in a strip 40. The unit is of the type shown in Fig. 3, in which a photo-sensitive sheet 12 is laminated to an image-receiving sheet 14, the sheets being bound together along their edges by the edges of a sheet 18 having a rectangular opening 28 through which the photographic exposure is made, and having at one end pods 16 containing processing liquid which are ruptured to spread the liquid between the sheets, and an element 20 at the other end for trapping unused liquid. Initially the sheets 12 and 14 are laminated together by introducing a laminating liquid between them from a nozzle 50 and then pressing them together between rollers 46, 48. The strip 40, which may be some hundreds of feet long, has the openings 28, and notches 42 and 44, stamped out initially. Strip 40 and the laminated sheets 12, 14 are brought together at a guide station 52, the laminate having been severed by a knife 58. The length of the laminate sheet now lies across the width of strip 40. Heat sealing jaws 64 (only one shown) seal the leading edge portion of the laminate to strip 40. A further pair of jaws 66 (only one shown) seals the laminate to strip 40 in the region surrounding the opening 28. At the next stage the pods 16 and the element 20 are sealed at opposite ends of the laminate, and at the next station the leading and trailing end sections 30, 32 are folded over. The unit is now severed by a knife 74, and the detached unit passed to further stations at which the marginal sections 34 are folded over and sealed. A number of inspection and monitoring stations are provided so that action may be taken immediately if any step is defective.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US4745270A | 1970-06-18 | 1970-06-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1342572A true GB1342572A (en) | 1974-01-03 |
Family
ID=21949062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2878471A Expired GB1342572A (en) | 1970-06-18 | 1971-06-10 | Manufacture of photographic film units |
Country Status (4)
Country | Link |
---|---|
US (1) | US3695884A (en) |
JP (1) | JPS5542373B1 (en) |
CA (1) | CA937086A (en) |
GB (1) | GB1342572A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI386306B (en) * | 2009-07-09 | 2013-02-21 | Nitto Denko Corp | Production method of long strip laminated film |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6291128B1 (en) | 1997-03-17 | 2001-09-18 | Polaroid Corporation | Photographic film assemblages of the self-developing type having removable portions |
JP4787458B2 (en) | 2000-08-01 | 2011-10-05 | センシン・キャピタル,リミテッド・ライアビリティ・カンパニー | Modified self-developing film assembly and method of making the same |
US6565271B1 (en) * | 2002-09-20 | 2003-05-20 | Polaroid Corporation | Self-developing film assemblages |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3415644A (en) * | 1967-03-10 | 1968-12-10 | Polaroid Corp | Novel photographic products and processes |
US3473925A (en) * | 1968-05-23 | 1969-10-21 | Polaroid Corp | Photographic diffusion transfer color process and film unit for use therein |
-
1970
- 1970-06-18 US US47452A patent/US3695884A/en not_active Expired - Lifetime
-
1971
- 1971-06-10 GB GB2878471A patent/GB1342572A/en not_active Expired
- 1971-06-18 CA CA116085A patent/CA937086A/en not_active Expired
- 1971-06-18 JP JP4340471A patent/JPS5542373B1/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI386306B (en) * | 2009-07-09 | 2013-02-21 | Nitto Denko Corp | Production method of long strip laminated film |
Also Published As
Publication number | Publication date |
---|---|
CA937086A (en) | 1973-11-20 |
JPS5542373B1 (en) | 1980-10-30 |
US3695884A (en) | 1972-10-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |