Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1902)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 391
verted horse-shoe type. Fig. 303, used inthe Crocker-Wheeler andother makes, and the Manchester type of fields are verycommon forms. In the inverted horseshoe type the winding may be either uponthe yoke as A, Fig.365, or upon eachlimb, as C, in thesame figure. Theyoke thus serves asa bed-plate for… … DIRECT CURRENT DYNAMOS. 373
Electricity · Magnetism
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