| 摘要 |
An improved hoist control system wherein a D.C. motor is employed to drive the hoist, and a remote hand-held control is utilized to vary the motor speed and direction of rotation. The hand control comprises an A.C. to D.C. variable transformer which is controllable by a trigger mechanism, a three-pole double throw switch for up-off-down control of the motor, circuit on-off switches, a meter for reading the hoist load, and an interlock device for limiting the actuation of the motor control switch if the trigger is depressed.
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