Film feeder that reduces film tension

Details Film feeder that reduces film tension Film feeder that reduces film tension

1995-03-28

1997-01-21

Gray, David M.

Photography

With film drive

Mechanical detail

396418, G03B 118

Patent

active

055963846

ABSTRACT:
A film feeder for taking up a film from a film container one frame at a time by rotation of a takeup spool driven by a film feed motor. The film feeder is provided with a film tension control means for actuating the feed motor in the opposite direction to the direction in which the film is fed only by an amount sufficient to relieve the tension of the film while the film is maintained at a predetermined position every time the film is fed for one frame.

REFERENCES:
patent: 4576457 (1986-03-01), Fukuda et al.
patent: 4720721 (1988-01-01), Hamada et al.
patent: 5345286 (1994-09-01), Stiehler

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