Photocopying – Projection printing and copying cameras – Original moves continuously
Patent
1976-02-13
1977-07-26
Griffin, Donald A.
Photocopying
Projection printing and copying cameras
Original moves continuously
352192, G03B 2748, G03B 122
Patent
active
040379540
ABSTRACT:
Photographic film handling apparatus, such as projectors or cameras, include an aperture located in a plane, and a film advancing mechanism mounted at the film aperture and including a first pin for intermittently advancing the photographic film past the film aperture, and a second pin for registering the film relative to the film aperture between successive intermittent advancements. These pins, and any mounting brackets therefor, are all located outside and to one side of the aperture as seen in a direction extending perpendicularly to the plane of the aperture.
REFERENCES:
patent: 1361012 (1920-12-01), Capstaff
patent: 1944033 (1934-01-01), Proctor
patent: 2174931 (1939-10-01), Terry et al.
patent: 2488177 (1949-11-01), Dufour
patent: 2622475 (1952-12-01), Tondreau
patent: 2733633 (1956-02-01), Wottring
patent: 2950646 (1960-08-01), Blank
patent: 3040619 (1962-06-01), Oxberry
patent: 3263555 (1966-08-01), Scheib
Bell & Howell Company
Griffin Donald A.
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