Winch

Details Winch Winch

1975-04-29

1976-12-21

Spar, Robert J.

Implements or apparatus for applying pushing or pulling force

Step-by-step traveling bar

Pawl actuated

744115, B66D 130

Patent

active

039984311

ABSTRACT:
A winch has a plurality of forward drives and a reverse to its drum, all engageable from a single drive input. Respective drives are engaged by reversal of the direction of rotation of the drive input. Upon one such reversal, therefore, the reverse is automatically engaged. A preselector is provided to permit, after actuation of the preselector, the drives and the reverse to be automatically engaged in succession by successive reversals of the drive input. Locking of the drum against unwanted run back upon cessation of drive input is assured by a lost motion drive and unidirectional drive means in the reverse.

REFERENCES:
patent: 2884800 (1959-05-01), Carroll
patent: 2988186 (1961-06-01), Dotter
patent: 3145974 (1964-08-01), Short
patent: 3541888 (1970-11-01), Hegar et al.
patent: 3711065 (1973-01-01), Lawrence

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