Document Type and Number:
Japanese Patent JPS4878929
Kind Code:
A
Abstract:
The invention relates to a film-transporting device for a film projector equipped with a main shaft that rotates with a constant number of revolutions per second, carries a disc shutter and a cam disc that operates on a pull-down claw for transporting the film that is swivable around two axes, wherein an interlocking mechanism controlled by an electromagnet is mounted that for an adjustable period of time can keep the pull-down claw out of reach of the film, and wherein between the main shaft and sprockets a single-revolution clutch is mounted controlled by the electromagnet.
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Application Number:
JP432973A
Publication Date:
October 23, 1973
Filing Date:
December 26, 1972
Export Citation:
International Classes:
G03B21/48; G03B1/40; G03B19/18; G03B21/00; (IPC1-7): G03B21/43