Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 818
796 AMERICAN TELEPHONE PRACTICE. A thimble (Fig. 575) of galvanived steel is used for attaching theguy wire to the anchor rod, as shown in Fig: 569. The wire used in guying may consist of one or more strands ofNo. 9 or ID B. & S. steel wire twisted together, but a better plan isto use the… … FIG. 577.—HAND BARROW. being more flexible, more easily handled, and, at the same time,stronger for its weight than the single strands of larger wire. Thecable usually consists of seven No. 12 steel wires laid up with a 3^-inch twist. In turning a sharp corner it is better to use two poles. Fig.…
Telephone
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