GB175266A - Improvements in or relating to cinematographic films and storage reels therefor - Google Patents
Improvements in or relating to cinematographic films and storage reels thereforInfo
- Publication number
- GB175266A GB175266A GB314422A GB314422A GB175266A GB 175266 A GB175266 A GB 175266A GB 314422 A GB314422 A GB 314422A GB 314422 A GB314422 A GB 314422A GB 175266 A GB175266 A GB 175266A
- Authority
- GB
- United Kingdom
- Prior art keywords
- film
- core
- secured
- perforation
- notch
- 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
- G03B21/326—Means for fixing the film on the axis of a reel or spindle
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
Abstract
175,266. PathÚ CinÚma, Anciens Etablissements PathÚ FrÞres. Feb. 10, 1921, [Convention date]. Kinematograph picture films. - A kinematograph film 9 is permanently secured to a rotary core 1 in a rigid storage reel, and has a perforation 10 or a notch whereby, when the film is be ing fed through a projector, the feed is stopped before tension is exerted upon the part of the flm attached to the core. As shown, the storage - reel comprises side cheeks 2, each having a notch 4, undetachably secured to a cylindrical wall 3 cut away so as to form with the notches 4 an opening through which the film may pass. The film may be secured to the core 1 by means of a spring 6, Fig. 3, having a pin 5 which passes through a perforation in the film and enters a recess in the core, or by inserting the end of the film in a slot in the core, winding the film once round the core, and then cementing the parts of the film together. The core may have a slot 11 to enable it to be rotated.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB175266A true GB175266A (en) | 1923-05-02 |
Family
ID=1627587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB314422A Expired GB175266A (en) | 1922-02-02 | Improvements in or relating to cinematographic films and storage reels therefor |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB175266A (en) |
-
1922
- 1922-02-02 GB GB314422A patent/GB175266A/en not_active Expired
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