Capstan winch with fixed internally grooved sleeve

Details Capstan winch with fixed internally grooved sleeve Capstan winch with fixed internally grooved sleeve

1991-12-31

1994-01-25

Crowder, Clifford D.

Implements or apparatus for applying pushing or pulling force

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

Device includes rotatably driven, cable contacting drum

254383, B66D 136

Patent

active

052808793

ABSTRACT:
A winch for moving loads with a continuous cable over varying distances that consists of a winch drum (10) with a fixed sleeve (26) to maintain proper laydown and separation of cable (34) on the drum (10). The sleeve (26) is helically grooved on its interior surface to form a space for the winch cable (34) to be guided therein. Pull force is mostly the result of the tension adjusted on the endless cable, the friction between the cable (34) and drum (10), the diameter of the drum, and the number of turns of cable (34) on the drum (10). The number of turns of cable (34) on the drum (10) is determined by the length of the drum (10) and sleeve (26) and the number of grooves machined into the sleeve's interior surface.

REFERENCES:
patent: 1536383 (1925-05-01), French
patent: 2976017 (1961-03-01), Le Bus
patent: 3048370 (1962-08-01), Kratzer
patent: 3448962 (1969-06-01), Miller
patent: 3807697 (1974-04-01), Cotreau et al.
patent: 3843094 (1974-10-01), Watts
patent: 3887164 (1975-06-01), Coombs
patent: 4953829 (1990-09-01), Knaack et al.

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