L on American Crane & Equipment Corp.

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


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		LATERAL FORCES Horizontal forces perpendicular to the axis of the member being considered.




		LIFT Maximum safe vertical distance through which the hook, magnet, or bucket can move.




		LIFT BEAMS Horizontal structural members designed to distribute loading between crane hooks and the object being lifted.




		LIFTING DEVICES Buckets, magnets, grabs and other supplemental devices, the weight of which is to be considered part of the rated load, used for ease in handling certain types of loads.




		LIMIT SWITCH A device designed to cut off the power automatically at or near the limit of travel for the crane motion.




		LINE CONTACTOR A contactor to disconnect power from the supply lines.




		LIVE LOAD A load which moves relative to the structure under consideration.




		LOAD BLOCK The assembly of hook, swivel, bearing, sheaves, pins and frame suspended by the hoisting ropes.




		LOAD CARRYING PART Any part of the crane in which the induced stress is influenced by the load on the hook.




		LOAD CELL An electronic device used to ensure the crane is not overloaded.




		LOAD CONTROL SYSTEM Electronic measurement device with digital readout used on a telescopic Jib Crane to determine allowable load parameters - boom angle, boom extension and weight on hook.




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




		LONGITUDINAL STIFFNERS Horizontal members attached to the web of the bridge girder to prevent web buckling.




		LOW-LEVEL WASTE (LLW) As defined by the Nuclear Regulatory Commission: "A general term for a wide range of wastes having low levels of radioactivity. Industries, hospitals and medical, educational, or research institutions; private or government laboratories; and nuclear fuel cycle facilities (e.g., nuclear power reactors and fuel fabrication plants) that use radioactive materials generate low-level wastes as part of their normal operations. These wastes are generated in many physical and chemical forms and levels of contamination."