The elements of dynamic electricity and magnetism (1903)
Atkinson, Philip. [from old catalog] · New York, D. Van Nostrand company · leaf 188
coils were wound between projec-tions on an iron core. An improvement on this wasmade by Gramme in 1870, illustrated by Fig. 70, inwhich the core was composed of annealed iron wires andentirely covered with the coils, only a few of which are THE DYXAMO AND MOTOR. 171 shown in the cut; the winding… … \ YV H ^ xT Fig. 70. tically as susceptible of magnetism as that of theSiemens armature. Improved Commutator.—An improved style of commu-tator was also invented, and used by Gramme in theconstruction of his dynamo in 1870, in connection withhis improved armature. It is shown in cross-section inFig.…
Electricity · Magnetism
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
