Worm gear drive and ratchet system

Details Worm gear drive and ratchet system Worm gear drive and ratchet system

1978-02-16

1978-09-12

Albritton, C. L.

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

74409, 338DIG1, H01C 1034

Patent

active

041141334

ABSTRACT:
A worm gear drive and ratchet system in which a flexible, two-piece, toothed drive wheel is driven by a threaded drive shaft. The two-piece, toothed drive wheel comprises identical halves that are keyed and bonded into a fixed relationship. Upon reaching a stop, gear teeth embossed on the flexible drive wheel ratchet over the threads on the threaded drive shaft.

REFERENCES:
patent: 3127583 (1964-03-01), Hudson et al.
patent: 3242450 (1966-03-01), Bourns et al.

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