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American telephone practice (1905)

Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 808

An illustration from American telephone practice, 1905, leaf 808
wo mencan have absolute control of the pole, moving it in any direction withcomparatively little effort. If the soil is soft a foot-plate should be placed under the butt ofthe pole. This can be made by fastening together two 2 inch by 12inch pieces of oak or hard pine 2 or 2-J feet long, at right… … DERRICK WAGON-POLE RAISED AND BRACED. larger foot-plate may he inserted. A good plan, under these condi-tions, is to place in the bottom of the hole a layer, 6 inches deep, ofconcrete, and, after rai.sing the pole, filling in the center hole to thesurface of the ground with the same…

Telephone

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