. Railway track and track work . Fig. 38.—Bush Interlocking Bolts. Fig. 35.—Screw Spike;Eastern Ry. (France.) a tapering projection, to square, for the socket wrench. shows the screw spike of the Eastern Ry. of Prance, and the form ofhole bored for it. In this country screw spikes have been but little used. The SouthernPacific Ry., has tried those shown at E, Pig. 34, in redwood ties, the holesbeing bored by machinery, but their use has been discontinued. Thespike was %-in. diameter,-5% ins. long, with an inclined or ratchet thread,and was driven in a 7-16-in. hole. The Pe

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. Railway track and track work . Fig. 38.—Bush Interlocking Bolts. Fig. 35.—Screw Spike;Eastern Ry. (France.) a tapering projection, to square, for the socket wrench. shows the screw spike of the Eastern Ry. of Prance, and the form ofhole bored for it. In this country screw spikes have been but little used. The SouthernPacific Ry., has tried those shown at E, Pig. 34, in redwood ties, the holesbeing bored by machinery, but their use has been discontinued. Thespike was %-in. diameter,-5% ins. long, with an inclined or ratchet thread,and was driven in a 7-16-in. hole. The Pennsylvania Ry. has tried screwspikes for fastening the 34-in. angle bars of 100-lb. rails to the joint were %-in. diameter over the V thread, and 6% ins. long under thehead, which was %-in. thick. They were put through holes in the anglebars, the uncut shank of the spike touching the edge of the rail base, and acast washer giving a horizontal bearing to the head. They are not usednow, as the parts were found to wor

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901