23 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
gantry leg
Industrial machinery; Cranes
The structural member which supports a bridge girder or end tie from the sill.
camber
Industrial machinery; Cranes
The slight, upward, vertical curve given to girders to partially compensate for deflection due to rated load and weight of the crane parts.
cross shaft
Industrial machinery; Cranes
The shaft extending across the bridge, used to transmit torque from the motor to bridge drive wheels.
reeving
Industrial machinery; Cranes
The reeving of the hoist is the path of the rope between the hoist and the load block.
box section
Industrial machinery; Cranes
The rectangular cross section of girders, trucks or other members enclosed on four sides.
hoist speed
Industrial machinery; Cranes
The rate of motion that the load hook attains while lifting rated load.
runway rail
Industrial machinery; Cranes
The rail supported by the runway beams on which the bridge travels.
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