Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 467
NAMO. There are different ways of generating, orproducing, electricity. For such work as elec-tric lighting and driving machinery it is gener-ated by a machine called a dynamo. This ismade from either a ring or a cylinder of iron,on the outside of which are wound coils of cop-per wire in different… … FIG. I. THE ARMATlRE OF A DYNAMO. This wire is generally wound in three or fourlayers, like thread on a spool, and often in deepgrooves cut in the surface of the iron, and isfastened in these grooves by wedges, or bound 1894.J A LESSON IN ELECTRICITY. 455 by strong bands or hoops if a cylinder…
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