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 241
the heavy boom is guyed securely overthe center of the hatch, by means of vangs on each side ofthe boom, the load then hoisted until high enough to clearthe hatch coaming and the bulwark, and then swung out-board by slacking away on one vang purchase and haulingin on the other with the aid of the…
Hoisting machinery · Conveying machinery
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