Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 792
y thestandard distance between the poles is 130 feet, making approxi-mately forty to the mile. 770 AMERICAN TELEPHONE PRACTICE. In the past the standard has been, on long-distance lines, to useno pole shorter than 35 feet, many of course being necessarily muchlonger. Recent practice, however, seems… … FIG. C36.-PnLE STRIPS AND BUTT PLATES. longer pole in city work m order that the line may be carried aboveelectric light and power circuits. It is often necessary to protect poles along the streets of townsand cities from the gnawing of horses hitched to them, and alsofrom the wearing efifects of…
Telephone
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