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 375
und an iron hub and thoroughly insulated from the hub and from each other, Fig. 337 ; mica is used for the insulation. The bars must be securely held in place, since a high or low bar would cause a break in the circuit each time it passed under the brush and destructive arcing would result. A… … Fij. 336.—Laminated Armature Core. The thickness of the discs is maguified to show theeddy curreuts. ARMATURES. 357
Electricity · Magnetism
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
