American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 284
re generated by the dynamo, x, s,Eig. i83«, on the shaft of which are three rings, ^, c, d, which revolve with it. Onehalf of the rings, c, ^/, is insulated as shown by the black dashes. This insulated halfof the ring is mainly of metal, to give a good wearing surface for the brushes. The THE… … //o 1^ i i ^.?.ia^v i: THE ROBERSON QUADRUPLFX-THEORY. The conducting segment of e is connected by wire i to one terminal of the armature cf-of K S; the other terminal of this armature is connected to ground by way of ring b 240^ AMERICAN TELEGRAPHY, and wire lo. The conducting segment of d is ulso…
Telegraph
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