Large capacity film cassette

Details Large capacity film cassette Large capacity film cassette

1974-12-10

1977-04-19

Hix, L. T.

Optics: motion pictures

Removable film strip magazine type

Magazines

352124, 242200, G03B 2302

Patent

active

040185184

ABSTRACT:
A photographic film cassette including a drive transmission arrangement configured for operating a film capstan and for selectively driving supply and take-up reels of the cassette responsive to projector driving operation. The cassette is a large capacity film cassette for use with automatic projector apparatus of the type having a cassette-receiving well smaller than the space occupied by take-up and supply reels of the large capacity cassette and is provided with a tongue-like housing portion receivable in the cassette well of the projection apparatus. Contained within the cassette is reversible drive transmission by which drive spindles in the cassette well are coupled to both an isolating capstan and the film reels to effect advancing movement of the film strip from the supply reel to the take-up reel during projection and rewinding movement of the film strip back to the supply reel after projection.

REFERENCES:
patent: 2275497 (1942-03-01), Berndt
patent: 2474972 (1949-07-01), Coutant et al.
patent: 2896873 (1959-07-01), Mageoch
patent: 3017804 (1962-01-01), Bonisch et al.
patent: 3480351 (1969-11-01), Blaschek
patent: 3600070 (1971-08-01), Downey
patent: 3604790 (1971-09-01), Land
patent: 3767294 (1973-10-01), Kosarko
patent: 3782812 (1974-01-01), Roller
patent: 3807841 (1974-04-01), Dudley
patent: 3825327 (1974-07-01), Kosarko

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