Two-speed video recorder

Details Two-speed video recorder Two-speed video recorder

1976-04-12

1978-02-28

Croyle, Carlton R.

Machine element or mechanism

Gearing

Toothed gear and recirculated unconnected elements

226178, 360 90, F16H 906, B65H 1722

Patent

active

040759008

ABSTRACT:
The specification discloses a video recorder having two recording speeds. The recorder includes a capstan for moving video tape past a recording head. A drive pulley is rotated at a predetermined drive speed. The pulley is movable between retracted and extended positions and has a small diameter portion and a large diameter portion. A belt engages the drive pulley in order to drive the capstan. A solenoid is provided to move the drive pulley between the retracted and extended positions, such that the belt alternatively engages the small and the large diameter portions in order to vary the speed of the capstan.

REFERENCES:
patent: 2484910 (1949-10-01), Romaine
patent: 2986318 (1961-05-01), Tiger
patent: 3507435 (1970-04-01), Hathaway
patent: 3661395 (1972-05-01), Ban
patent: 3762229 (1973-10-01), Johnson

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