Constant center of gravity film camera magazine

Details Constant center of gravity film camera magazine Constant center of gravity film camera magazine

1988-07-15

1989-05-02

Hayes, Monroe H.

Optics: motion pictures

Removable film strip magazine type

Magazines

352243, 242199, G03B 2302

Patent

active

048263109

ABSTRACT:
A film magazine for a motion picture camera has film rolls mounted on a movable carriage so that the magazine's center of gravity remains fixed as film is exposed. A feed spindle and a take-up spindle are mounted on a carriage which is longitudinally movable within the magazine housing. As film is fed into the camera it passes over a sprocket which drives the carriage through a gear train. The displacement of the mass of the carriage compensates for the transfer of film from the feed roll to the take-up roll, thereby maintaining a constant center of gravity.

REFERENCES:
patent: 3490833 (1970-01-01), Gottschalk et al.
patent: 3700316 (1972-10-01), Kurechi

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