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 295
f the gears are enclosedand operate in a bath of lubricant; tliis protects the gearfrom dirt and insures a smooth running efficient gearhaving a long life. Motors Electrically operated crane trolleys are equipped withone or more electric motors either of the direct current oralternating current… … ^^ HHk\>- ^, ---ggii One-Motor Electric Trolley
Hoisting machinery · Conveying machinery
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
