T on American Crane & Equipment Corp.

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Crane and Hoist Equipment and Components by Type > Resource Center > Crane Glossary > T


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		TEFC Totally enclosed fan cooled.




		TELESCOPIC JIB CRANE A jib crane with a boom designed to extended and retract. Typically used in a containment building to access remote areas and polar crane maintenance.




		TENV Totally enclosed non-ventilated.




		THERMAL OVERLOAD PROTECTION Positive temperature coefficient thermistor device embedded in a motor to protect against damage from high frequency starting, voltage fluctuations and frequency fluctuations.




		TOP RUNNING CRANE An overhead traveling crane having the end trucks supported on rails attached to the top of the runway support beams.




		TORQUE The torque produced by a motor operating at its rated horsepower and speed.




		TORSIONAL BOX GIRDER Girder in which the bridge rail is located over one web.




		TORSIONAL FORCES Forces which can cause twisting of a member.




		TRAVELING CRANE A single or double girder bridge crane running on two or more straight runway tracks with a hoisting system designed for lifting, transporting and lowering loads.




		TROLLEY The unit carrying the hoisting mechanism which travels on the bridge rails.




		TROLLEY FRAME The basic structure of the trolley on which are mounted the hoisting and traversing mechanisms.




		TURBINE As defined by the Nuclear Regulatory Commission: "A rotary engine made with a series of curved vanes on a rotating shaft, usually turned by water or steam. Turbines are considered the most economical means to turn large electrical generators."




		TURNTABLE A mechanism with a horizontal rotable inner frame with an inner frame. The inner frame can be rotated to align a section of track with other track for the transfer of loaded carriers from one track to another.




		TWO BLOCKING Condition under which the load block or load suspended from the hook becomes jammed against the crane structure preventing further winding up of the hoist drum.