Film advance device for surveillance cameras

Details Film advance device for surveillance cameras Film advance device for surveillance cameras

G - Physics

03

B

95/55

G03B 1/12 (2006.01) G03B 9/10 (2006.01) G03B 19/04 (2006.01)

Patent

CA 1289403

FILM ADVANCE DEVICE FOR SURVEILLANCE CAMERAS ABSTRACT OF THE DISCLOSURE A sequence camera for recording a series of images on a strip of photographic film employing a rotating shutter and an intermittent film advance mechanism. A motor drives the shutter and the film advance mechanism. The film advance mechanism uti- lizes a beater wheel with two protruding pins spaced unequally about the circumference and a spoke wheel with a plurality of spokes. As the motor drives the beater wheel, the pins intermittently engage the spokes of the spoke wheel, which, in turn, intermit- tently advances the film. The film is exposed by the shutter during the stationary period between advance- ments.

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