GB1454764A - Film cartridge device - Google Patents
Film cartridge deviceInfo
- Publication number
- GB1454764A GB1454764A GB5092873A GB5092873A GB1454764A GB 1454764 A GB1454764 A GB 1454764A GB 5092873 A GB5092873 A GB 5092873A GB 5092873 A GB5092873 A GB 5092873A GB 1454764 A GB1454764 A GB 1454764A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strip
- core
- flat end
- wall
- hole
- 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
- 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
- G03B21/321—Holders for films, e.g. reels, cassettes, spindles
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
Abstract
1454764 Film cartridges CIBA-GEIGY AG 25 Oct 1974 [2 Nov 1973] 50928/73 Heading B8M The unreeling of a length of reeled film 6 on a rotatable central core 9 encased in a cartridge 1 having two side walls 2, 3 which cover the reeled film, is prevented by sealing a strip 14 of flexible material over a central hole 12 in at least one side wall 2 of the cartridge and over a flat end of the core 9 or over a separable insert 10 which engages with the core 9 and which has a flat end 11 thereto, the flat end 11 being exposed through the hole 12 so that it is substantially coplanar with the wall 2, thus disabling the core 9 from rotating whilst the strip is in position. By substantially coplanar is meant that the flat end 11 is coplanar with the wall 2 or is proud to an extent of up to 0À040 inches or is below the plane of the wall 2 to an extent of up to 0À020 inches. As shown, a light-tight circular film cartridge 1 comprises side walls 2, 3 and a circular peripheral wall 4 having a mouth 5 therein through which the free end of the film 6 may be drawn. An insert 10 is mounted to rotate with the core 9. The strip 14 of cellulose acetate covered with a pressure sensitive adhesive has been pushed firmly over the hole 12 and the flat end 11 of the insert 10 and is sealed to the surrounding area of the wall 2. The core 9 may be freed by peeling off the strip 14 or by cutting around the points a, a 1 . In modifications, (a) instead of pressure sensitive adhesive, a water activated or a heat activated adhesive covering is provided on the strip 14, (b) the sealing side of the strip and the area around the hole 12 are covered with a layer of an impact adhesive and (c) the cartridge 1 and the core 9 or the insert 10 are made of polyethylene, polystyrene or another plastics material to which polyethylene may be heat welded and an uncoated polyethylene strip 14 is heat welded over the hole 12 and the flat end 11.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5092873A GB1454764A (en) | 1973-11-02 | 1973-11-02 | Film cartridge device |
CH1466974A CH584419A5 (en) | 1973-11-02 | 1974-11-01 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5092873A GB1454764A (en) | 1973-11-02 | 1973-11-02 | Film cartridge device |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1454764A true GB1454764A (en) | 1976-11-03 |
Family
ID=10457972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5092873A Expired GB1454764A (en) | 1973-11-02 | 1973-11-02 | Film cartridge device |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH584419A5 (en) |
GB (1) | GB1454764A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0070616A1 (en) * | 1981-05-27 | 1983-01-26 | Technicolor, Inc. | Improved cassette hub locking mechanism |
US5798899A (en) * | 1989-10-20 | 1998-08-25 | Hitachi Maxwell, Ltd. | Tape cartridge with an upper case wall cover plate |
-
1973
- 1973-11-02 GB GB5092873A patent/GB1454764A/en not_active Expired
-
1974
- 1974-11-01 CH CH1466974A patent/CH584419A5/xx not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0070616A1 (en) * | 1981-05-27 | 1983-01-26 | Technicolor, Inc. | Improved cassette hub locking mechanism |
US5798899A (en) * | 1989-10-20 | 1998-08-25 | Hitachi Maxwell, Ltd. | Tape cartridge with an upper case wall cover plate |
Also Published As
Publication number | Publication date |
---|---|
CH584419A5 (en) | 1977-01-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |