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 618
though drop bottom cars are used tosome extent, particularly in the coke regions. Similarcars are used in the anthracite regions although many carsof the square box form are also employed. As the operating costs of a mine will be considerablyaffected by the design of the car selected, it is… … Fig. 59—Coal Mine Car, Swing End Gate been exerted to devise as many variations as possible inpractically every detail. Many of these deviations are un-questionably not necessary and it is to be hoped that thenear future will see a considerable advancement towardstandardization. In opening up new…
Hoisting machinery · Conveying machinery
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