Sound motion-picture camera

Details Sound motion-picture camera Sound motion-picture camera

1977-02-22

1978-05-16

Hayes, Monroe H.

Optics: motion pictures

With sound accompaniment

Common picture and sound record carrier systems

352174, 352179, 352 72, G03B 3102

Patent

active

040895963

ABSTRACT:
The sound-recording unit of the camera includes a counterpressure roller and a pressure pad. When the sound-recording unit is to be used, the counterpressure roller is to be moved into an operative position in which it presses the motion-picture film against the capstan of the unit, and the pressure pad is to be moved into an operative position in which it presses the motion-picture film against the recording head of the unit. When the sound-recording unit is not to be used, the counterpressure roller and pressure pad are to be moved into inoperative positions, to prevent permanent deformation. The camera is provided with a plurality of independently activatable motion-transmitting mechanisms, each activatable from the exterior of the camera. Each of the motion-transmitting mechanisms can be used to move the counterpressure roller and the pressure pad from their inoperative to their operative positions.

REFERENCES:
patent: 3880504 (1975-04-01), Marvin
patent: 4059349 (1977-11-01), Komine

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