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 501
ast case is a direct substitute for thefreight elevator and is used when a fixed elevator wouldnot be justified. Hand Operated placed so as to roll from side to side depending upon therequirements. As far as motive power is concerned the elevators maybe operated by hand or by a motor of some kind.… … Revolv Type Portable Elevator For low rises where the elevator need not be transportedunder beams or low doorways, the guides may be in onepiece. For high rises they are usually hinged so that theymay be folded, thus reducing the headroom required for moving the machines from place to place and…
Hoisting machinery · Conveying machinery
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