GE M. HOPKINS. terminals, a b, the current is taken off for use. {Continued from page 262.) in Fig. 7. In Fig. 8, for the sake of clearness, only a single con- The making of a good commutator is not the smallest The brushes which bear upon opposite sides of the item in the construction of a dynamo.… … divide it into 34 equal divisions, the slits the wires may be conveniently connected extending nearly through the cylinder, as shown at 1. up according to the various methods of winding, com- of hard rolled copper, thirteen-sixteenths inch wide and Before the bars are separated they are marked with…
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