. Steel rails; their history, properties, strength and manufacture, with notes on the principles of rolling stock and track design . sibility of fastening the rail with the same amount of holdingpower on both sides, besides the drawbacks enumerated above, led to the intro-duction of an entirely different system of fastening. The first set, or Group 1, of plates are shown in Fig. 101. These plates hada bearing on the ties of 90 square inches as against 80 square inches in thelargest previous plate, and were fastened to the ties by means of four screwspikes absolutely independent of the rail fas
. Steel rails; their history, properties, strength and manufacture, with notes on the principles of rolling stock and track design . sibility of fastening the rail with the same amount of holdingpower on both sides, besides the drawbacks enumerated above, led to the intro-duction of an entirely different system of fastening. The first set, or Group 1, of plates are shown in Fig. 101. These plates hada bearing on the ties of 90 square inches as against 80 square inches in thelargest previous plate, and were fastened to the ties by means of four screwspikes absolutely independent of the rail fastening. The rail was in its turn 136 STEEL RAILS fastened to the plate by means of two bolts and clips, these being independentof the tie fastening. The clips were made so as to be capable of adjusting the gage of the trackby being reversible, and also of such a shape as to take up and transmit hori-zontal forces at the base of the rail to the shoulders provided for in the tieplates. In this manner the upward forces would be resisted by all the screwspikes, and similarly all the horizontal forces would be taken care of. Spring. I2 5. ][ Ifo
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Keywords: ., bookcentury1900, bookdecade1910, bookidsteelrailsth, bookyear1913
