5 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
side hook approach
Industrial machinery; Cranes
The minimum horizontal distance, perpendicular to the runway, between the centerline of a hook (main or auxiliary) and the centerline of the runway rail.
end approach
Industrial machinery; Cranes
The minimum horizontal distance, parallel to the runway, between the outermost extremities of the crane and the centerline of the hook.
end hook approach
Industrial machinery; Cranes
The minimum horizontal distance, parallel to the runway, between the centerline of the hook(s) and the face of the wall (or columns) at the end of the building.
hook approach
Industrial machinery; Cranes
The minimum horizontal distance between the center of the runway rail and the hook.
clearance
Industrial machinery; Cranes
The minimum distance from any part of the crane to the point of nearest obstruction.
hook travel lift
Industrial machinery; Cranes
The maximum vertical distance through which the load hook can travel, and the total allowable hook movement between its upper limit of travel and its position when at the lower limit of travel.
motor breakdown torque
Industrial machinery; Cranes
The maximum torque which a squirrel-cage or wound-rotor (slip-ring) motor will develop with rated voltage applied at rated frequency, without an abrupt drop in speed.
