. Building and repairing railways . Fig. 100. THE SERVIS TIE PLATE. Fig. 101. WOLHAUPTER ARCH GIRDER TIE PLATE. <. STANDARDS OF CONSTRUCTION. 199 plate bolted or spiked to the tie and the rail fast-ened rigidly to the tie plate. This is Sandbergstype of tie plate. Figs. 99, 100 and 101 illus-trate other makes of the first two styles. Thesame objection applies to the third style of tieplate, which was found to the use of screws in-stead of spikes to fasten the rail to the ties; bythe use of screws the rails were held rigidly tothe tie and the wave action produced by thetrain on the rail caus
. Building and repairing railways . Fig. 100. THE SERVIS TIE PLATE. Fig. 101. WOLHAUPTER ARCH GIRDER TIE PLATE. <. STANDARDS OF CONSTRUCTION. 199 plate bolted or spiked to the tie and the rail fast-ened rigidly to the tie plate. This is Sandbergstype of tie plate. Figs. 99, 100 and 101 illus-trate other makes of the first two styles. Thesame objection applies to the third style of tieplate, which was found to the use of screws in-stead of spikes to fasten the rail to the ties; bythe use of screws the rails were held rigidly tothe tie and the wave action produced by thetrain on the rail caused the tie to work more (orpump the ballast) than where spikes were used,thus increasing the cost of track repairs. Where tie plates are not used on all the tiesin a track they will be found of special benefitunder the following conditions: On heavy gradesand sharp curves they prevent the cutting of thetie and canting the rail and preserve the gaugewithout the use of rail braces. In tunnels wherethe moisture tends to soften the tie, they pre-vent the rail cutting into it and preserve thegauge. On swampy ground w
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
