American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 566
GAYNOR MANUAL REPEATER. The electrical connections of the repeating arrangement are shown in Fig. 343.In this, c is the cylinder, or multiple break-wheel, shown end on. c is the contacttono-ue. The tongue c normally rests on the cylinder. As thus arranged it will be ob-served that the cylinder…
Telegraph
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