Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 155
d,outside of the rotating axle, by a cylinder of wood, which inits turn is surrounded by a thick tube made of a series ofvery thin disks of iron, separated from each other by paper. 140 THE ELECTEIC LIGHT. This arrangement facilitates the rapid changes of polarity inthe plates. This tube is… … inder, as seen in Fig. 60. Under such conditions as these, theresistance of the generator is small, and permits of great sub-division of the current in multiple arc; nor is there any insula-tion to be burned ; and in case of the deterioration of the bars,they can be easily renewed, for they are…
Electrical engineering
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