Lessons in practical electricity; principles, experiments, and arithmetical problems; over four hundred illustrations; an elementary text book (1909)
Swoope, C. Walton (Coates Walton), d. 1901 · New York, D. Van Nostrand company · leaf 369
350 PRACTICAL ELECTRICITY. independent circuits. The dynamo would then be called adouble current generator. The collector rings would be con-nected one to each diametrically opposite section of the com-mutator ; for example, 1 and 5 in Fig. 324. 328. Siemens Drum Armature.—Instead of winding… … Fig. 329.—Multi-Coil Siemens Drum Armature.Tooth-core pattern. wound upon a cylindrical laminated iron core made by as-sembling, upon the armature shaft, thin sheets of soft iron ;after being properly insulated the coils are wound upon thecore, and connected in series and to the commutator in the…
Electricity · Magnetism
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