. Steel rails; their history, properties, strength and manufacture, with notes on the principles of rolling stock and track design . Fig. 276. — Section of Ingot, 17 ins. Square at Top, 19ins. Square at Base, and ins. long, ContainingCavity of 128 cubic inches. (Am. Inst, of Mining Fig. 277. — Bloom from an Ingot of sameHeat and of same Size as Fig. 276, show-ing Reduction of Cavity. (Am. Inst, ofMining Engrs.) others so placed at varying intervals up to having been kept vertically untilall of the steel was thoroughly set. The best modern practice is to charge the hot ingots into the rehe
. Steel rails; their history, properties, strength and manufacture, with notes on the principles of rolling stock and track design . Fig. 276. — Section of Ingot, 17 ins. Square at Top, 19ins. Square at Base, and ins. long, ContainingCavity of 128 cubic inches. (Am. Inst, of Mining Fig. 277. — Bloom from an Ingot of sameHeat and of same Size as Fig. 276, show-ing Reduction of Cavity. (Am. Inst, ofMining Engrs.) others so placed at varying intervals up to having been kept vertically untilall of the steel was thoroughly set. The best modern practice is to charge the hot ingots into the reheatingfurnaces to equalize their heat for blooming as soon as possible after they areteemed, stripped, and weighed. An interesting experiment was tried by Dr. P. H. Dudley to determine INFLUENCE OF DETAIL OF MANUFACTURE 401 the relation between the pipe in an ingot which had been allowed to get coldand one which had been promptly charged into the reheating furnace.* Fig. 276 is a photograph of a three-rail ingot, for 100-pound rails, teemed ina mold 19 inches square on the base, 17 inches square on the top, and 66 incheslon
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Keywords: ., bookcentury1900, bookdecade1910, bookidsteelrailsth, bookyear1913
