Elevator – industrial lift truck – or stationary lift for vehicle – Industrial lift truck or required component thereof – Having structure allowing propulsion or steering by walking...
Patent
1996-09-23
1999-01-26
Young, Karen M.
Elevator, industrial lift truck, or stationary lift for vehicle
Industrial lift truck or required component thereof
Having structure allowing propulsion or steering by walking...
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.
Tran Thuy V.
Young Karen M.
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