Multispeed winch

Details Multispeed winch Multispeed winch

1989-11-02

1990-12-04

Hail, III, Joseph J.

Implements or apparatus for applying pushing or pulling force

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

Device includes rotatably driven, cable contacting drum

254342, 74439, 74462, 748101, B66D 114

Patent

active

049748149

ABSTRACT:
A multispeed winch or gear box wherein an axially-movable gear located on a shaft parallel to the drive shaft is movable by operation of a lift mechanism to be in a first position in engagement with a specific gear train or in a second position out of engagement with the gear train. Further, the winch or gear box can have a gear on the drive shaft with a lip or shoulder which can retain the axially-movable gear in the upper or first position after the lift mechanism has moved the axially movable gear to the first position, and the lift mechanism has been withdrawn. This arrangement will permit the gear box or winch to automatically shift from first speed to second speed to third speed upon reversal of the drive shaft rotation.

REFERENCES:
patent: Re30881 (1982-03-01), Huggett et al.
patent: 77346 (1868-04-01), Bailey
patent: 742812 (1903-10-01), Winton
patent: 1098762 (1914-06-01), Richards
patent: 1297835 (1919-03-01), Guay
patent: 3918560 (1975-11-01), Zach
patent: 3927580 (1975-12-01), Fawcett
patent: 4054266 (1977-10-01), Guangorena
patent: 4055092 (1977-10-01), Aberg
patent: 4725043 (1988-02-01), Atfield et al.

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