American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 406
er segments not shown in this figure. 336 SYNCHRCNOUS MULTIPLEX TELEGRAPHY. 337- The reeds c c are kept in vibration in a well-known way. That is, when thereed is placed against the contact point p the resistance r is cut out, or short-circut-ed, and battery B exerts its full srrength. This… … CONNECTIONS—DELANY MULTIPLEX TELEGRAPH THEORY, net M loses its attractive force and reed c is withdrawn, by its own tension, to contact:point p, and so on, thereby producing the well known * buzzer action. Whenever the reed makes contact with p the circuit of battery b is closed. Thismagnetizes…
Telegraph
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