Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 797
inch wide by ^ inchthick, and varying in length from 20 to 30 inches. A hole isusually punched in one end for the reception of a -J-inch lag-screwand in the other for a ^-inch carriage bolt. The two braces foreach cross-arm are attached by single lag-screws to the pole at adistance varying from 16… … FIG. 542.—METHOD OF ATTACHING BRACES. The other ends of the braces are attached by carriage bolts to thecross-arms at paints about equal distances from the pole. A new cross-arm brace has recently been produced, this beingformed up of sheet steel with reinforced edges. Tlie reinforcementsare formed…
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