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hoist
For a DC hoist motor, the peak power should not exceed 2.1 times the RMS power for good commutation.
      
For a DC hoist motor, the peak power should not exceed 2.0 times the rated motor power for good commutation.
      
Frank McLaughlin's Big Bend Tunnel project of the 1880s used a water-generating plant to provide electric power for the pumps and hoist.
      
First the logs were shoved into a gap where the hoist could get hold of them.
      
For our second example, gear defects in the crane hoist gearbox proved one of the most easily identifiable defects.
      
Failure to center the hoist over the load may cause the load to swing upon lifting.
      
Guards for rotation unit, hoist and winch improve safety and enables CS14 to be CE approved.
      
However, the designer may wish to provide and/or label hoist points to aid the recovery crew.
      
Hoist motion is accomplished through a hydraulic-motor power winch with a built-in gear reducer or a special low-speed control hydraulic motor.
      
However, if fiber rope is used to hoist or support personnel, then the safety factor must be 10.
      
Hooks and slings used to hoist the steel shall be padded.
      
Hoist cables shall be terminated in suspension rope equalizers of the individual compression spring type.
      
Hoist and store units in such a manner as to prevent excessive stresses, spalling, chipping or cracking.
      
Hoist rated load means the hoist manufacturer's maximum allowable operating load.
      
He brought a tripod, chains and a hoist to lift the roof of the lantern.
      
He didn't tolerate the hoist very well and so a sling was used to support his hindquarters and chest.
      
Hoist communications are necessary to permit communication between persons in the hoist cage and the surface or underground.
      
Handling the Trolley Motion Before a load is handled, the hoist should be positioned directly over the load that is to be handled.
      
If the upper hook were to fail, the entire chain hoist would fall.
      
If the same is not available than the unloading may be done using electric hoist and spreader beam.
      
 

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