Photographic apparatus including improved aperture plate

Details Photographic apparatus including improved aperture plate Photographic apparatus including improved aperture plate

1976-08-06

1978-01-31

Tomsky, Stephen J.

Optics: motion pictures

Removable film strip magazine type

352 78R, 352224, 352228, G03B 148

Patent

active

040712940

ABSTRACT:
Photographic apparatus including an aperture plate adapted to cooperate with a pressure plate of a film handling cassette so as to laterally bow an incremental section of photographic film retained within the cassette into a precise location without contacting the usable portion of the emulsion. Additionally, the aperture plate is longitudinally channeled and includes a ramp extending along a portion of one side of the aperture plate channel so as to urge the film strip to its proper location as the film strip is translated traversely of the aperture plate during insertion of the cassette in the apparatus.

REFERENCES:
patent: 1888527 (1932-11-01), Edouart
patent: 1994586 (1935-03-01), Mihalyi
patent: 2497847 (1950-02-01), Coutant et al.
patent: 2598364 (1952-05-01), D'Avitaya
patent: 2789489 (1957-04-01), Zwakenberg et al.
patent: 2897719 (1959-08-01), Tiller
patent: 2981146 (1961-04-01), Kipping
patent: 2996951 (1961-08-01), Debrie
patent: 3233959 (1966-02-01), Gasser
patent: 3395965 (1968-08-01), Teshi et al.
patent: 3781101 (1973-12-01), Kaneko et al.

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