GE M. HOPKINS. terminals, a@ 6, 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 adynamo.… … in any other’ convenient way, so as to Fig. 6—-THE COMMUTATOR CYLINDER. ance in the magnet. Another is that divide it into 24 equal divisions, the slits the wires may be conveniently connected extending nearly through the cylinder, as shown at 1. of hard rolled copper, thirteen-sixteenths inch wide…
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