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 227
nT^^TrT^F^ ss I/m m >^ rSo2 -*-: … DERRICKS 221 full circle operation, and to avoid obstructing the passageabout the derrick, a deadman or strut is sometimes usedunder the guys. This permits the use of shorter guys, re-quires less yardroom and eliminates the necessity of con-tinually lowering the boom to clear the guys when it…
Hoisting machinery · Conveying machinery
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
