Film wind-up mechanism releasing device

Details Film wind-up mechanism releasing device Film wind-up mechanism releasing device

1977-01-24

1979-03-20

Hornsby, Harvey C.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

354214, G03B 104, G03B 124, G03B 1904

Patent

active

041450116

ABSTRACT:
A device for releasing a film wind-up mechanism used for winding up film by driving a sprocket which is interlocked with a film wind-up means. The device is provided with a means for releasing the sprocket and the film wind-up mechanism from their states of being interlocked with each other when a preset number of film frames have been wound up.

REFERENCES:
patent: 3485156 (1969-12-01), Takahashi et al.
patent: 3598033 (1971-08-01), Sasaki
patent: 3645182 (1972-02-01), Kimura

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