Winch

Details Winch Winch

1986-07-25

1988-02-16

Levy, Stuart S.

Implements or apparatus for applying pushing or pulling force

Apparatus for hauling or hoisting load, including driven...

Device includes rotatably driven, cable contacting drum

74812, 254357, B66D 114, F16H 572

Patent

active

047250437

ABSTRACT:
A winch has four drive trains of progressively increasing mechanical advantage between its drive shaft (3) and drum (8). If a selector (40) is engaged, rotation of the shaft in successively opposite senses will cause automatically engagement of the first third and fourth trains in sequence. If the selector (40) is not engaged and an override control (80,81,82) is appropriately set, the sequence second, third, fourth trains is followed. But the override may be locked so that only second and third trains are engaged alternately.

REFERENCES:
patent: Re30881 (1982-03-01), Huggett et al.
patent: 3802665 (1974-04-01), Fawcett
patent: 3927580 (1975-12-01), Fawcett
patent: 3942762 (1976-03-01), Reymond
patent: 3962935 (1976-06-01), Hutton et al.
patent: 3973755 (1976-08-01), Fawcett
patent: 3981208 (1976-09-01), Moses

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