Film advancing mechanism with film threading facility

Details Film advancing mechanism with film threading facility Film advancing mechanism with film threading facility

1976-02-13

1977-08-09

Griffin, Donald A.

Optics: motion pictures

Camera and/or projector drive mechanisms

With film engaging claws reciprocally driven to engage film

355 18, 355 50, G03B 122, G03B 2748

Patent

active

040407306

ABSTRACT:
A mechanism for advancing film relative to a film aperture is releasably mounted for movement between an active position at the film aperture and a passive position spaced from the film aperture and enabling threading of film relative to the film aperture.

REFERENCES:
patent: 1562283 (1925-11-01), Beck
patent: 1868331 (1932-07-01), Merle
patent: 1944031 (1934-01-01), Laug et al.
patent: 2451947 (1948-10-01), Harvey
patent: 3137201 (1964-06-01), Uterhart
patent: 3263555 (1966-08-01), Scheib

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