Multiple exposure camera take-up spool

Details Multiple exposure camera take-up spool Multiple exposure camera take-up spool

1975-09-23

1977-03-22

O'Connor, Edna M.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 71, G03B 140

Patent

active

040140350

ABSTRACT:
A device for a camera to permit multiple exposures whenever desired by an operator. The device is a film take-up spool formed of two relatively rotatable parts. The two parts are normally coupled by a spring-urged clutch. To disengage the clutch, and thereby permit cocking of the shutter without the usual rotation of the film take-up spool, a thin rod or pin is inserted through a hole in the end of the take-up spool retainer to disengage the clutch. Disengagement means may be built into the take-up spool retainer as a simple push button.

REFERENCES:
patent: 3650191 (1972-03-01), Nomura

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