Winch
United States Patent 3027141
US Patent References:
Swivel mounting for hoists
- - 1535221

Earth moving device
- - 2405981

Frame shifting apparatus
- - 2477064

Hydraulically actuated swing boom crane
- - 2528985

Cable winch
- - 2567526


Inventors:
Ellis, John H.
Publication Date:
03/27/1962
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Assignee:
Norman, Blodgett S.
Primary Class:
254/323
Other Classes:
254/332, 254/349
International Classes:
B66D1/08; B66D1/02
US Patent References:
2635851Combined clutch and brake for drawworks hoists
2645455Removable drum fishing winch
2676785Hydraulically-controlled winch assembly
2903142Control mechanism for swingable booms