Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 461
till greater proportion of current 440 THE ELECTRIC LIGHT. will be diverted through the shunt magnet coils cc^ which willpolarize the cores similar to the polarity of the current flowingthrough the solenoids hh^ and cause them to repel or force outthe magnet armature c. If the lamp then fails to… … Fifj. 268. When it is desired to switch the light out by hand, all that isrequired is to move the hand switchyj so that it will close con-tact with the knob g. The reverse operation will again re-es-tablish the arc. The precise arrangement of parts in this lampis shown in fig. 267. THE WOOD ARC…
Electrical engineering
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