Implements or apparatus for applying pushing or pulling force – Apparatus for hauling or hoisting load – including driven... – Device includes rotatably driven – cable contacting drum
Patent
1985-05-28
1986-11-18
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
254361, B66D 114, B66D 108
Patent
active
046231242
ABSTRACT:
A hydraulic power unit includes an engine and a pump mounted to a portable frame having an integral fluid reservoir for circulating the hydraulic fluid. Detachably mounted to the frame is a multiple speed winch. The fluid reservoir within the frame comprises the hollow structural tubing of the frame itself. The frame includes a handle for carrying the unit while the winch is in operation and for providing a hydraulic head to the pump and an expansion chamber for the hydraulic fluid. The multiple speed winch includes, in addition to the hydraulic motor, a first rotatable shaft and a second rotatable shaft operatively connected to the motor for providing two speeds to the winch. Each shaft has a freely rotatable hub mounted thereon which is engaged to its shaft by an associated clutch. By engaging and disengaging the clutches, the hydraulic motor may drive either of the shafts directly to reel in the attached cable or play it out.
REFERENCES:
patent: 1143547 (1915-06-01), McGiffert
patent: 2873948 (1959-02-01), Colmer
patent: 3015473 (1962-01-01), Frellsen
patent: 3788605 (1974-01-01), Johnson
patent: 3802511 (1974-04-01), Good
patent: 3836122 (1974-09-01), Pierce
patent: 3938781 (1976-02-01), Craven
patent: 4145028 (1979-03-01), Kelley
patent: 4189075 (1980-02-01), Hall
patent: 4290584 (1981-09-01), Eckels
Levy Stuart S.
Matecki Katherine A.
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