Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 561
rated simultaneously in each coil, and alwaysunite to form a single powerful current. The larger dynamo-electric machines, constructed for pro-ducing the electric light, were used for lighthouses, vessels, etc.,and contained from 50 to 60 very powerful systems of magnets,between whose poles the… … Fig. 340. Eig. 3-iO represents a dynamo machine constructed by Sie-mens in 1854, for working telegraph lines. S and K are two rowsof permanent bar magnets ; the upper ones with their north endsand the lower ones with their south ends are in contact with a SIEMENS MACHINE. 541 heavy plate, P, of…
Electrical engineering
Internet Archive · Northeastern University Library · Public Domain Mark 1.0. Free to use for anything.
![An illustration from The Telegrapher [microform] (1864)](https://img.insideoutlibrary.com/img/200/ia-telegrapher05nati-104-57.webp)
