Distribution of Magnetic Lines, Ring Armature

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“Distribution of magnetic lines through a ring armature. Since the lines follow the metal of the ring instead of penetrating the interior no electromotive force is induced in that portion of the winking lying on the interior surface of the ring. There is, therefore, a large amount of dead wire or wire that is ineffective in inducing electromotive force; that is the chief objective to the ring type of armature.” -Hawkins, 1917




Hawkins and Staff Hawkins Electrical Guide Number One (New York: Theo. Audel and Company, 1917) 280


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