. The Iron and steel magazine. Thos. D. West, President-elect Ameri-can Foundrymens Association The Carnegie Steel Cross-Tie. — The Carnegie Steel Com-pany, Pittsburg, Pa., has for some time been furnishing promi- i68 The Iron and Steel Magazine nent railroad companies with considerable quantities of steelcross-ties. It is believed that the near future will witness mate-rial development in the use of metal ties to replace the woodenones. Wooden ties are steadity growing scarcer and illustrations are given of the new tie which has beenbrought out by the Carnegie Steel Company, t
. The Iron and steel magazine. Thos. D. West, President-elect Ameri-can Foundrymens Association The Carnegie Steel Cross-Tie. — The Carnegie Steel Com-pany, Pittsburg, Pa., has for some time been furnishing promi- i68 The Iron and Steel Magazine nent railroad companies with considerable quantities of steelcross-ties. It is believed that the near future will witness mate-rial development in the use of metal ties to replace the woodenones. Wooden ties are steadity growing scarcer and illustrations are given of the new tie which has beenbrought out by the Carnegie Steel Company, together with themethod of its use. Fig. i is a cross section of the tie, which,it will be observed, is an exaggerated form of the well-knownI-beam. This section combines ample bearing surface of a propershape for bedding and tamping, sufficient surface for seatingthe rail, the greatest rigidity and transverse strength for a givenweight of material, and an easy means for securing the rail to. Fig. I. Cross Section of the Carnegie Steel Cross Tie the tie. It has a top flange 4^ inches wide, a bottom flange 8inches wide, a depth of 5^ inches, is 8 feet, 6 inches in length,and weighs pounds per foot, or a total weight of poundsper tie, exclusive of fastenings, which weigh about 6 rail is secured to the tie, as shown in Fig. 2, with four three-quarter-inch bolts, by means of rolled steel clips, fitting accu-rately on the flange of the rail. These clips have a bevel exactlythe same as that of the flange of the rail and are carefully punchedso that the shoulder of the clip gives proper and positive railalignment. The necessary insulation, where automatic blocksignals are in use, is provided for by the use of wooden shims Metallurgical Notes and Coiiuiiciits 169 between the rail and the tie, liber bushings around the bolts andtiber washers under the nuts. These ties have been used in svifficient quantities to demon-strate their efficiency during the past two
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Keywords: ., bo, bookcentury1800, bookdecade1890, booksubjectiron, bookyear1898
