Film winding and shutter actuating mechanism for a cartridge fil

Details Film winding and shutter actuating mechanism for a cartridge fil Film winding and shutter actuating mechanism for a cartridge fil

1975-09-29

1976-11-23

Griffin, Donald A.

G03B 1742

Patent

active

039940055

ABSTRACT:
A film winding member and a shutter cocking member are movable as a unit until the shutter is cocked, and then the film winding lever moves by itself. The film winding member is stopped when a film position sensing lever senses a hole in the film indicating the frame position. Means are provided to prevent a shutter release member from being moved until the film has been advanced and the film winding member has been returned to its initial position. The film advancing operation and the shutter cocking operation are accomplished with one stroke of the film winding member.

REFERENCES:
patent: 2688279 (1954-09-01), Hodges
patent: 2833189 (1958-05-01), Kaden et al.
patent: 3253526 (1966-05-01), Steisslinger
patent: 3714877 (1973-02-01), Schroder
patent: 3730066 (1973-05-01), Ettischer et al.
patent: 3747494 (1973-07-01), Peters
patent: 3768389 (1973-10-01), Ettischer et al.
patent: 3779145 (1973-12-01), Ettischer et al.

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