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 175
the trolley and thehoisting drums. The current is conducted to the cranemotors from wires installed on poles or on other structuresnear the gantry tracks. Current collectors, secured ,to anarm projecting from the hridge, insure a contact with thecircuit as the structure travels along the track. A…
Hoisting machinery · Conveying machinery
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
