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 241
Fig. 141. MOTORS. 229 … Fig. 144.core is attracted by the magnet. The rapidity with whichthis operation may be performed is controlled by a dash-pot. Thus the starting and stopping of the motor is 230 DYNAMO ELECTRIC MACHINERY. accomplished simply and effectively by means of a mainline switch. Fig. 144 shows a…
Electric machinery
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