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 620
extended rapidly in recent years. Both lift and swinggates have, however, one serious fault. As they cannot bemade and kept tight they permit the leakage of a certainamount of fine coal which falls on the haulage-way andis ground up by the passing of cars, men and animals.This fine dust is carried… … Fig. 63—Steel Mine Car, Without Gates gates and are now using cars with solid ends. In such. places rotary dumps are required to unload the cars. In addition to tightness and freedom from leakage, carswithout gates are cheaper to build, retain their shape bet-ter, cost less to maintain and spend…
Hoisting machinery · Conveying machinery
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