Optics: motion pictures – With sound accompaniment – Common picture and sound record carrier systems
Patent
1976-03-22
1977-07-26
Hayes, Monroe H.
Optics: motion pictures
With sound accompaniment
Common picture and sound record carrier systems
352 72, 352 14, G03B 3102
Patent
active
040379477
ABSTRACT:
A cine camera for taking talking pictures, in which a film is moved intermittently past an image gate by a reciprocating traction claw and continuously past a recording head by a rotating capstan coacting with a pinch roller, includes a latch by which the pinch roller can be held spaced from the capstan in an inactive position. The latching of the pinch roller in this inactive position, against the force of a biasing spring providing the necessary contact pressure during filming, is accomplished upon deactivation of the film drive by the residual kinetic energy of an inertial mass such as a flywheel which is coupled with either the capstan drive or the claw drive. The latch is released upon actuation of a trigger, either directly or through the intermediary of the claw drive. The biasing spring may be part of a toggle mechanism tripped by a presetting member, such as a sensor detecting the presence of a sound-film cassette in the camera.
REFERENCES:
patent: 3825327 (1974-07-01), Kosarko
patent: 3880504 (1975-04-01), Marvin
patent: 3957363 (1976-05-01), Hayashi
patent: 3963331 (1976-06-01), Komine
patent: 3967886 (1976-07-01), Komine
patent: 3970378 (1976-07-01), Takagi
Freudenschuss Otto
Kantner Otto
Revy von Belvard Peter
Dubno Herbert
Hauser Raimund
Hayes Monroe H.
Montague Ernest G.
Ross Karl F.
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