Film handling system employing a common cartridge

Details Film handling system employing a common cartridge Film handling system employing a common cartridge

1974-05-29

1976-07-20

Hayes, Monroe H.

Optics: motion pictures

With film treating or working

352 78C, G03C 1100

Patent

active

039703800

ABSTRACT:
A film handling system to with which a film cartridge is commonly usable in each step of exposure, processing (developing) and projection of the film housed therein, wherein a safety means which advances the above mentioned film cartridge through each step in which it is used in a prescribed sequence is provided. Further an electric circuit which controls the above mentioned handling system in such manner as to activate said system according to the output of the safety means is provided so that such erroneous handling as occurs when processing or projecting unexposed film by mistake or by projecting unprocessed film can be automatically prevented.

REFERENCES:
patent: 3422740 (1969-01-01), Nerwin
patent: 3666361 (1972-05-01), Pankow
patent: 3778140 (1973-12-01), Land
patent: 3800306 (1974-03-01), Land
patent: 3832048 (1974-08-01), Batter

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