American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 396
mally thelever V of tapper t is given a tension which holds it against the contact c. Thearmature-lever I of relay r is also normally on its back stop x. Hence at this time MARCONI WIRELESS TELEGRAPH, 335^ local circuit of battery 1) is open. When the filings cohere on the arrival of theemitted… … ture, which opens the circuit of h at c. At once the armature of t flies back on itscontact point, at the same time striking the tube, decohering the tilings, and openingthe local circuit of R at x. Immediately, however, the filings again cohere, assumingthe oscillations to continue, with the…
Telegraph
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