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American telephone practice (1905)

Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 818

An illustration from American telephone practice, 1905, leaf 818
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.… … FIG. 578.—COME-ALONG. and should be guyed in a manner that will effectually brace them inall directions. The large cut in Fig. 576 shows the best methodof guying, but the method shown in the lower left-hand corner maybe used where there is room for only one guy stub and anchor. Sometimes instead of…

Telephone

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