Transducer backup assembly for sound motion picture film handlin

Details Transducer backup assembly for sound motion picture film handlin Transducer backup assembly for sound motion picture film handlin

1977-01-04

1979-01-23

Hayes, Monroe H.

Optics: motion pictures

With sound accompaniment

Common picture and sound record carrier systems

352 72, 352 78R, 352130, G03B 3102

Patent

active

041357930

ABSTRACT:
A backup support arrangement is provided against which a film strip, carrying a magnetic sound track adjacent one edge, is biased by a sound recording/playback transducer in a multipurpose photographic film cassette having a sound capability. The support arrangement engages the side of the film strip opposite the side carrying the magnetic sound track and is resiliently mounted in a manner such that the force imparted upon the backside of the film strip is distributed so that a significantly greater biasing force is imparted upon the backside of the film strip adjacent the edge carrying the magnetic sound track than upon the remainder of the film strip.

REFERENCES:
patent: 3905690 (1975-09-01), Scholz

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