Electrical machinery; a practical study course on installation, operation and maintenance (1921)
Annett, Fred Anzley · New York [etc.] McGraw-Hill book company · leaf 179
MACHINERY base it would short-circuit the magnetic field; that is, insteadof the lines of force passing from the N pole across the airgap, and through the armature core into the S pole, theywould take the easier path around through the iron base.To overcome this defect, a nonmagnetic plate of brass… … 2INC OR BRASS-PLATE Fig. 171.—Improved type of Edison two-pole dynaniu or motor. into the base of the machine and back into the polepieces,the pedestals were usually made of brass. To get away from the nonmagnetic bearing pedestal andbedplate, the polepieces were tui-ncd ujiside down with…
Electric machinery
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
