Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 469
bound together at the ends with insulated 456 A LESSON IN ELECTRICITY. [Mar. steel rings. The ends of the armature coils aresoldered to these bars, as shown in Fig. i, thetwo ends of each coil to two adjoining bars, sothat the electric current, in going from one barto another, must go by way of a… … F1G. 3. A DYNAMO WITH A CYLINDER ARMATURE. stand how it is done. Here is a plan of three current, as inof the coils and four of the bars; and the the magnetscoils are flat, which is the way they are often represented bywound, and the bars are insulated from each Fig. 2. But asother by air spaces.…
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