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 84
Fig. 38. of the ducts varying from three-eighths to five-eighths ofan inch. Fig. 39 illustrates a Westinghouse armature core partlyassembled on the spider. One of the segments of a disc 72 DYNAMO ELECTRIC MACHINERY. and a spacing piece are shown leaning against thatportion of the spider upon which… … Fig. 39. Two types of armature slots are in general use, theopen slot and the partly closed slot. The former has theadvantage that the armature conductors may be formedinto coils, insulated, and readily inserted into the slots,
Electric machinery
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