. Steel rails; their history, properties, strength and manufacture, with notes on the principles of rolling stock and track design . Fig. 110. — Machine Preparing Ties for Screw Spikes. (Railroad Age Gazette.). Hole Tapped Plug in Place Dressed for Tie Plate Completed Rail Fastening Fig. 111. — Showing Application of Screw Spike on A. T. & S. Fe R. R. (Railroad Age Gazette.) TABLE XXVII. — ONE MILE OF TRACK WITH SCREW SPIKES AND DOWELS 12,000 spikes at cents each S 324 6,000 tie plates at 21 cents each 1,260 Boring ties for, and driving, 24,000 dowels, at 1 cent each 240 24,000 wooden dowe
. Steel rails; their history, properties, strength and manufacture, with notes on the principles of rolling stock and track design . Fig. 110. — Machine Preparing Ties for Screw Spikes. (Railroad Age Gazette.). Hole Tapped Plug in Place Dressed for Tie Plate Completed Rail Fastening Fig. 111. — Showing Application of Screw Spike on A. T. & S. Fe R. R. (Railroad Age Gazette.) TABLE XXVII. — ONE MILE OF TRACK WITH SCREW SPIKES AND DOWELS 12,000 spikes at cents each S 324 6,000 tie plates at 21 cents each 1,260 Boring ties for, and driving, 24,000 dowels, at 1 cent each 240 24,000 wooden dowels at 1| cents each 360 Driving screw spikes (per mile) 150 Total $2,334 ONE MILE WITH CUT SPIKES 12,000 spikes § 127 6,000 tie plates at 21 cents each 1,260 Driving cut spikes (per mile) 150 Total $1_537 * Apparently the French railways were about the first in Europe to beginthe use of the screw spike (tirefond) as a rail fastening, and it is to-day uni-versally employed by the large systems (Fig. 112, Table XXVIII). * For a very full discussion of the subject, see The Question of Screw Fastenings to Secure Railsto Ties, W. C. Gushing, Proceedings Am. Ry. Eng. & M. of W. Assn., 1909, Vol.
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