The elements of dynamic electricity and magnetism (1903)
Atkinson, Philip. [from old catalog] · New York, D. Van Nostrand company · leaf 193
quisite forproper electric induction and resistance. 1/6 DYNAMIC ELECTRICITY AND MAGNETISM. Closed-Circuit and Open-Circuit Armatures.—Armatures wound like the Gramme, in an endless spiral, with at-tachment to the commutator segments by radial arms,at regular intervals, are known as closed-circuit… … Fig. 73. In another style, known as the open-circuit armature,each coil is independent of every other, its terminalsbeing connected to two opposite segments of the com-mutator which have no connection with the other coils. THE DYNAMO AND MOTOR. i;; as in the armature of the Brush dynamo; hence…
Electricity · Magnetism
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