20 Terms
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Cranes
A crane is a type of machinery used for lifting and moving heavy materials in construction, transportation (loading and unloading merchandise) and other fields. Most cranes are equipped with a hoist, wire ropes or chains, and sheaves, that can be used both to lift and lower materials and to move them around.
Industry: Industrial machinery
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Cranes
interlock mechanism
Industrial machinery; Cranes
A mechanical device to lock together the adjacent ends of two cranes or a crane to a crossover or spur track to permit the transfer of carriers from one crane or track to the other.
safety lug
Industrial machinery; Cranes
A mechanical device fixed securely to the end truck or trolley yoke which will limit the fall of the crane or carrier in case of wheel or axle failure.
magnetic control
Industrial machinery; Cranes
A means of controlling direction and speed by using magnetic contactors and relays.
emergency stop switch
Industrial machinery; Cranes
A manually or automatically operated electric switch to cut off electric power independently of the regular operating controls.
master switch
Industrial machinery; Cranes
A manually operated device which serves to govern the operation of contactors and auxiliary devices of an electric control.
main line disconnect switch
Industrial machinery; Cranes
A manual switch which breaks the power lines leading from the main line collectors.
