Combination motorized and manual drive for lifts

Elevator – industrial lift truck – or stationary lift for vehicle – Industrial lift truck or required component thereof – Having structure allowing propulsion or steering by walking...

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Details

187263, 187235, 187244, 74625, 254 4B, B60P 114, B66B 1108, B66F 906, B66F 920

Patent

active

058628851

ABSTRACT:
A power option is provided for a manually-operated material lift that employs a telescoping mast system which is extended or retracted by a winch. A reversible electric motor is connected to the winch via two-way reduction gearing that remains in the drive train during manual operation and requires no clutches or disconnect means. The power option is initiated by selecting the position of a reversing switch that controls the motor, and closing an on/off switch which energizes the motor for rotation in the selected direction. When the on/off switch is open, the lift may be manually operated in the conventional manner.

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Multiton's CWRS advertisement, Apr. 1984.

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