Hoist machine

Details Hoist machine Hoist machine

1993-04-16

1995-08-01

Stodola, Daniel P.

Implements or apparatus for applying pushing or pulling force

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

Device includes rotatably driven, cable contacting drum

318753, B66D 154

Patent

active

054374324

ABSTRACT:
A hoist machine provided with a driving member driven by a capacitor start single phase motor, which is provided with a governor and a switching device for turning a start capacitor on and off following operation of the governor. The switching device is provided with a switch control panel, which, when the driving member drives to hoist a load, maintains on-operation of the lowering side switch and turns off the hoisting side switch following the operation of the governor to thereby cut off energization to the start capacitor, and when in a lowering operation, maintains on-operation of the hoisting side switch and turns off the lowering side switch to thereby cut off energization of the start capacitor.

REFERENCES:
patent: 2683844 (1954-07-01), Schaefer
patent: 3575562 (1971-04-01), Remke
patent: 3971971 (1976-07-01), Wycoff
patent: 4353022 (1982-10-01), Young
patent: 4422029 (1983-12-01), Deniers et al.
patent: 4636962 (1987-01-01), Broyden
patent: 4665286 (1987-05-01), Hansen
patent: 4789135 (1988-12-01), Watanabe
patent: 4792734 (1988-12-01), Watanabe
patent: 4917360 (1990-04-01), Kojima
patent: 5139156 (1992-08-01), Nakamura

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