American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 486
will make contactat c each time its end e falls into a notch between the teeth of a, and it will breakcontact when the end e rides upon a tooth, as in the figure. On the contrary, in thecase of lever / the contacts of tiie circuit are made at c when the end e is in a notch,and vice versa^ As wheel… … UNIVERSAL TRANSMITTER, THEORY. will be broken at c twice as often as the type circuit at c; which, it will be noticed,is exactly the result obtained by the use of tho two segmental wheels, Fig. 306, oneof which has twice as many metal segments as the other. Consequently, the actionuj^on the type…
Telegraph
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