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 243
Skimmer Type of Power Shovel as Used in Excavation Work. Gasoline Operation … Skimmer or Coal Loader Working in Conjunction with Large Revolving Steam Power Shovel EXCAVATING MACHINES 237 lowerea to the base level and is thrust into the material bymeans of a rack gear on the under side of the dipper handle.It is operated by gears propelled by the thrusting engine ontlie boom…
Hoisting machinery · Conveying machinery
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