Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 564
h, of Copenhagen, applied for apatent in England, which was granted in April, 1855, for a dy-namo-electric machine, in which the principle of augmentingelectric currents by the reaction of electro-magnets upon eachother was employed. The general appearance of this machineis shown in fig. 345.… … Fig. 345. nent magnet M, and the poles of a series of electro-magnets, E E.The main features of the invention consist in applying the per-manent magnet M in connection with the electro-magnets E E, 544 THE ELECTKIC LIGHT. in sucli a manner that the currents induced in the coils of therevolving…
Electrical engineering
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