. Material handling cyclopedia; a reference book covering definitions, descriptions, illustrations and methods of use of material handling machines employed in industry . Turntable of Locomotive Crane Showing Rotating Mech-anibm and Hoisting Drums Turntable of Locomotive Crane Showing Hoisting Drums,Rotating Mechanism and Clutch CRANES 183 sist of a single piece, or may be made in a telescopic orcantilever form so that they may be lengthened or short-ened as desired. Booms designed for light service within a small areamay be constructed of wood reinforced with iron fittingsand sometimes with b
. Material handling cyclopedia; a reference book covering definitions, descriptions, illustrations and methods of use of material handling machines employed in industry . Turntable of Locomotive Crane Showing Rotating Mech-anibm and Hoisting Drums Turntable of Locomotive Crane Showing Hoisting Drums,Rotating Mechanism and Clutch CRANES 183 sist of a single piece, or may be made in a telescopic orcantilever form so that they may be lengthened or short-ened as desired. Booms designed for light service within a small areamay be constructed of wood reinforced with iron fittingsand sometimes with boom truss-rods ; may be single I-beamsof adequate section; or may be built up of light I-beams orchannels reinforced with plate or lattice cross latter type of boom, when constructed of heavy ma-terial, may also be used on cranes of heavy capacities op-erating over a greater area, The most common and mostefficient type of boom for heavy service and long radiusis of rectangular cross section and is constructed of fourcorner angles with a lattice type of reinforcement, some-times being supplemented by plates at the boom end andat the bottom. Many booms
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Keywords: ., bo, bookcentury1900, bookdecade1920, booksubjecthoistingmachinery
