. Material handling cyclopedia; a reference book covering definitions, descriptions, illustrations and methods of use of material handling machines employed in industry . avy work the ordinary railroad practice niay befollowed and curvature designated by the degrees ofdeflection from a tangent measured from stations 100 Derails. In many places derails are placed on. sidetracks in order to derail and stop a car should it startto roll onto the niain line. They consist of a steel castingso shaped that the flange of the wheel will roll up ontoit and pass over the rail. When a clear track
. Material handling cyclopedia; a reference book covering definitions, descriptions, illustrations and methods of use of material handling machines employed in industry . avy work the ordinary railroad practice niay befollowed and curvature designated by the degrees ofdeflection from a tangent measured from stations 100 Derails. In many places derails are placed on. sidetracks in order to derail and stop a car should it startto roll onto the niain line. They consist of a steel castingso shaped that the flange of the wheel will roll up ontoit and pass over the rail. When a clear track is desiredthey may be swung back out of the way. Portable Track. For construction work and other tem-porary installations, portable track is particularly usefulas it can be quickly laid down and readily changed to newlocations. If such track is not for export or to be trans-ported for long distances by rail, the usual practice is torivet together the rails and ties. Where cost of transpor-tation and compactness in shipment are important, thetrack and the ties may be bolted together and taken apartfor shipment. Portable track is usually made up in standard lengths. Turntable, Crossover and Switch of 15 ft., although lengths of 30 ft. are used for track ofthe lighter sections. Switches and curves are also made up in interchange-able standard units. Cast Plate Track. For use in boiler rooms, machineshops and other places where a smooth and easily cleanedfloor and one that will not interfere with other traffic isdesirable, cast plate track is frequently used. Such track is made up in standard straight and curvedsections; 90 deg., 60 deg., and 45 deg. crossings andswitches. Such track is usually set in concrete and laidflush with the floor. The surface is checkered to preventslipping. Turntables. Many designs have been made for castiron and steel turntables. Their use is desirable incramped quarters, as they require less floor space thanswitches and curves. Transfers. For moving ca
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Keywords: ., bo, bookcentury1900, bookdecade1920, booksubjecthoistingmachinery
