Film advance and rewind mechanism

Details Film advance and rewind mechanism Film advance and rewind mechanism

1980-11-17

1982-06-01

Griffin, Donald A.

354275, G03B 100, G03B 1726

Patent

active

043324495

ABSTRACT:
A film advance and rewind mechanism is disclosed in which a thumbwheel is rotatable in only one direction and is drivingly coupled to a take-up spool only when rotated, the take-up spool being free to rotate in a rewind direction when a supply spool is rotated in a rewind direction.

REFERENCES:
patent: 2213741 (1940-09-01), Mihalyi
patent: 2879704 (1959-03-01), Winkler et al.
patent: 3613541 (1971-10-01), Beach
patent: 4012755 (1977-03-01), Arai

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