Material handling cyclopedia; a reference book covering definitions, descriptions, illustrations and methods of use of material handling machines employed in industry (1921)
Wright, Roydon Vincent, 1876- ed, Little, John G., joint ed, Augur, Robert C., joint ed · New York, N.Y., Simmons-Boardman Publishing Co · leaf 191
CRANES 185 secured to the side of the car frame by hinges or held insockets; or they may be formed of I-beams telescopingunder the car. When in use they are swung outward andsupported on blocking or by screw jacks resting on theblocking. In another form of outrigger, known as the stability-wheel…
Hoisting machinery · Conveying machinery
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