American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 184
he same purpose is shown in Fig. 129. In this the- insulators are suspended in the water in^.r^^-^rrrr^^yr,^^^^^ trough T by means of a cover r. One ter- ■^^ ^ ^^^ ^^^^^^^ ^ ^^ ^^^^ ^^^^ ^ terminates in the-trough; the other end e, is held in thehand and is dipped into one insulator afteranother,… … CHAPTER IX. THE DELANY LINE ADJUSTMENT. During the prevalence of rainy weather much delay is frequently occasioned onpoorly insulated wires and even on comparatively well insulated wires, by lack ofproper adjustment on the part of operators at some of the way stations. The cause of this is,…
Telegraph
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