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 714
15-Ton Unloaders and Ore Bridge Operated byG-E Equipment. … Electrically Operated Gantry Crane Handling Ore. i I Electric derrick hoists are ^ Derrick ^ particularly useful in the con- 1 . ,. . I tracting and construction field I Applications j ^^^ excavation, quarrying and I „„„„ I concrete construction. G-E di-rect current, series wound, andalternating…
Hoisting machinery · Conveying machinery
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