American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 187
Now,if there should be an escape at e, Fig. 131, it will only be necessary forthe despatcher at t to keep liis relay adjusted so that it will be operated bythe opening and closing of the key at x. When this is accomplished the batteriesat X and Y, in addition to the regular opening at the key, will… … DELANY VLINE ADJUSTMENT, OR BREAK REPEATER. The adjusting apparatus as it appears m practice is shown in Fig. 132. A switch,shown on the base board of the apparatus, is provided to cut out this portion ofthe escape nullifier from the main line and locals when the condition of the linedoes not…
Telegraph
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