An elementary book on electricity and magnetism and their applications (1919)
Jackson, Dugald C. (Dugald Caleb), 1865-1951, Jackson, John Price, b. 1868, Black, Newton Henry, b. 1874 · New York, The Macmillian Co · leaf 290
by good judgment. The ideal method wouldbe to have one or more motors built as a part of every machinein the establishment ; but this arrangement would make themachinery too costly and consequently could not be carried DIRECT-CURRENT MOTORS 259 out. The next best arrangement, and the one which is… … Fig. 183. — Traveling crane with electric motors. necessary belting or gearing; or they may be directly beltedor geared to the usual driving pulleys of the machines. Smallermachinery may be arranged in groups of from two to six ma-chines with a motor to supply power to the machines of eachgroup…
Electricity · Magnetism
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