Photography – Camera detail – Detachable or removable film holder unit
Patent
1996-01-24
1998-04-21
Mathews, A. A.
Photography
Camera detail
Detachable or removable film holder unit
396387, 352241, 2423483, G03B 124, G03B 1726
Patent
active
057428620
ABSTRACT:
The invention concerns a cassette for photographic film.
The cassette for photographic film according to the invention comprises: a winding spool (45); a photographic film (41) designed to be wound on said winding spool, means being provided for fixing one end of the film to said spool, said film being provided with perforations (48) formed at intervals along at least one of its longitudinal edges, and designed to cooperate with drive means (46) provided on a camera (42), a perforated leader (43) enabling the film to be engaged with said drive means (46) of said camera for the purpose of its winding onto a receiving spool (44), at least one of the perforations (60) of the leader intended for the initial engagement of the film (41) with the drive means (46) being longer along the longitudinal axis of the film than the other perforations (48).
REFERENCES:
patent: 1144414 (1915-06-01), Holmes
patent: 1229275 (1917-06-01), Jenkins
patent: 1499941 (1924-07-01), Marette
patent: 3508820 (1970-04-01), Tsunoda
patent: 3999844 (1976-12-01), Batter
patent: 5223876 (1993-06-01), Komatsuzaki
patent: 5255040 (1993-10-01), Pagano
Eastman Kodak Company
Fields Roger A.
Mathews A. A.
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