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 209
Differential. Duplex Gyratory Gear. Two-Speed. Hoists HOISTS ARE USED for lifting purposes iti practically Usually the hoisting speed is variable only- by means ofevery modern industry and they have come to be the movement of the power sheave, but on hoists whereconsidered as an essential part of…
Hoisting machinery · Conveying machinery
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
