American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 186
battery b, the line would be clearedof all current for the moment, and the relay, Rg, would respond. DELANY LINE ADJUSTMENT. I SI This result is ingeniously accomplished by the Delany * line adjustment, or morecorrectly, perhaps, escape nuUifier, in the manner illustrated in Fig. 131. In this… … DELANY ESCAPE NULLIFIER (THEORY). The apparatus used to open the circuit simultaneously at both ends of the line isehown to the left of relay r at x, and to the right of R3 at y. It consists of an * extra electro-magnet em, in addition to the usual sounders, placed in the local circuits, of R ^ and…
Telegraph
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