. Steel rails; their history, properties, strength and manufacture, with notes on the principles of rolling stock and track design . ernational RailwayCongress, March, 1907) are consideredworth trying by the Chemins de Ferde lEst, de 1Etat, and de Paris aOrleans. From its greater holding power,the verdict of the engineers of theFrench, Belgian, and German railwaysis that the screw spike is superior tothe hook spike, because they considerit very important to hold the rail fastto the tie. On the other hand, the Britishrailways do not seem to find the screwspike necessary for their large andheavy
. Steel rails; their history, properties, strength and manufacture, with notes on the principles of rolling stock and track design . ernational RailwayCongress, March, 1907) are consideredworth trying by the Chemins de Ferde lEst, de 1Etat, and de Paris aOrleans. From its greater holding power,the verdict of the engineers of theFrench, Belgian, and German railwaysis that the screw spike is superior tothe hook spike, because they considerit very important to hold the rail fastto the tie. On the other hand, the Britishrailways do not seem to find the screwspike necessary for their large andheavy chairs, and they use creosotedties, as well as the Continental lines;but the holes for their spikes are boredin advance. According to our present knowl-edge, the amount of bearing surfacethe tie plate has upon the tie is ap-parently not the determining factorin providing against wear. Thequestion of securing the plate firmly to the tie is fully as important as the sizeof the plate used, and in selecting a proper unit stress for the bearing on thetie it is evident, therefore, that the area of the bearing surface cannot be con-. Fig. 118. — Collet Trenail. (Am. Ry. Eng. Assn.) SUPPORTS OF THE RAIL 151 sidered without taking account of the kind of fastening employed to hold theplate to the tie.
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Keywords: ., bookcentury1900, bookdecade1910, bookidsteelrailsth, bookyear1913
