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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.

Contributors in Cranes

Cranes

auxiliary girder

Industrial machinery; Cranes

An additional girder, either solid or latticed arranged parallel to the bridge girder(s) for supporting the foot-walk, Bridge Crane Control panels, operator's cab, etc., to reduce the torsional ...

lift plan

Industrial machinery; Cranes

Pre-job plan or procedure for safely executing a lift

qualified inspector

Industrial machinery; Cranes

Person recognized for competence and whose qualification to perform specific inspection activities has been determined, verified, and documented

load cycle

Industrial machinery; Cranes

One lift cycle with load plus one lift cycle without load.

rotary switch

Industrial machinery; Cranes

On a monorail, a track switch with a movable inner frame containing straight and/or curve sections of track. The inner frame can be rotated around a vertical axis to align these tracks with other ...

tongue switch

Industrial machinery; Cranes

On a monorail, a track switch containing one straight section of track, pivoted at one end, which can be swung to various positions to connect with fixed tracks for routing of carriers.

turntable

Industrial machinery; Cranes

On a monorail, a track device with a movable inner frame containing a straight section of track which can be rotated with a loaded carrier on it to align the section of track with other tracks for ...

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