. The railroad and engineering journal . 163. They were enclosed in a case and fastened by a bolt, B,to one of the cross-beams, and were connected by a rod, K, toa short arm on the lifting-shaft, like that shown in fig. this instance the rod A was subjected to a compressivestrain by the tension of the two volute springs. Fig. 164 shows a helical spring, which was applied in 1875for the same purpose. This was also enclosed in a cylindrical Fig- 159- Another plan of applying a semi-elliptic spring is shown inplan in fig. 160. In this case the spring 5 was connected toa short arm, B. forge
. The railroad and engineering journal . 163. They were enclosed in a case and fastened by a bolt, B,to one of the cross-beams, and were connected by a rod, K, toa short arm on the lifting-shaft, like that shown in fig. this instance the rod A was subjected to a compressivestrain by the tension of the two volute springs. Fig. 164 shows a helical spring, which was applied in 1875for the same purpose. This was also enclosed in a cylindrical Fig- 159- Another plan of applying a semi-elliptic spring is shown inplan in fig. 160. In this case the spring 5 was connected toa short arm, B. forged on the middle of the lifting-shaft. In 1S60, a spiral spring, figs. 161 and 162, was used. Theinner end of this spring was attached to the lifting-shaft S,and the other end was fastened to a case in which it was en- Fig. 160. closed. The case was prevented from turning by a bolt, required amount of tension was brought on the spring byturning the case, and the bolt was adjusted in any one of theholes, which were arranged in a cir
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887
