Dynamo electric machinery; its design, construction, and operation; direct-current machines (1915)
Sheldon, Samuel, 1862-1920, Hausmann, Erich, 1886- joint author · New York, D. Van Nostrand Company; · leaf 272
oyinglarge air-gaps. The Crocker-Wheeler Company manufacture form Wmotors for rolling mills in sizes ranging from 7J to 200H.P. for 220 volts, one of which is shown in Fig. 166.They are four-pole machines, and the frames are dividedhorizontally, the upper half being provided with two handholes for… … MOTORS 261 constantly in one direction, while the other two rolls revolveconstantly in the opposite direction. Thus a piece of steelcan pass through the lower set to the right, then be raisedon a table and pass through the upper set of rolls to theleft, and continuing in this way. In the two-high…
Electric machinery
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