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 193
nstruction and seldom are morethan 35 ft. to 40 ft. in length. These booms generally arecurved near the top but they sometimes are made straightand much longer or are provided with an extension so that,for special work, they may range in length upward to 90ft. or more. The shorter booms are… … CRANES 187
Hoisting machinery · Conveying machinery
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
