Hand held motion picture viewer

Details Hand held motion picture viewer Hand held motion picture viewer

1978-01-30

1979-10-23

Hayes, Monroe H.

Optics: motion pictures

Removable film strip magazine type

352166, 352189, 352190, 352140, G03B 2100

Patent

active

041718810

ABSTRACT:
A hand held motion picture viewer includes a housing having a recess formed in one end of the housing for carrying a film cartridge, and a viewing aperture in the opposite end of the housing through which the images on the film in the cartridge may be viewed. The housing carries a film driving mechanism for engaging and advancing the film within the cartridge past the viewing aperture. The film driving mechanism includes a battery operated motor, a claw journaled for rotation within the housing and positioned to engage sprocket holes in the film when the cartridge is carried within the recess of the viewer, and a gear transmission means connected between the motor and the claw for rotating the claw in discrete arcuate steps when the motor is energized to produce intermittent film advance. An actuating lever and movable contact means are provided for selective electrical connection of the motor with the battery for selective energization of the motor and film advance. A mechanical claw advancing mechanism is coupled with the actuating lever to mechanically drive the claw through a short angular distance to overcome inertia of the film when energization of the motor is commenced with the claw positioned within a sprocket hole.

REFERENCES:
patent: 3139790 (1964-07-01), Kipping
patent: 3476470 (1969-11-01), Dejoux

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