. Steel rails; their history, properties, strength and manufacture, with notes on the principles of rolling stock and track design . STRESSES IN BASE OF RAIL - STONE BALLAST. 60-POUND O Fig. 167. — Railroad Track Experiments, Pennsylvania R. R. Stress in Rail. 236 STEEL RAILS All of the experiments just described have been made with the static loadof the engine. In 1897, Dr. P. H. Dudley commenced a series of interestingtests to determine the effect of the dynamic load of the engine. * In Figs. 168 and 169 are shown the results of tests made by Dr. Dudleywith the stremmatograph. The pri
. Steel rails; their history, properties, strength and manufacture, with notes on the principles of rolling stock and track design . STRESSES IN BASE OF RAIL - STONE BALLAST. 60-POUND O Fig. 167. — Railroad Track Experiments, Pennsylvania R. R. Stress in Rail. 236 STEEL RAILS All of the experiments just described have been made with the static loadof the engine. In 1897, Dr. P. H. Dudley commenced a series of interestingtests to determine the effect of the dynamic load of the engine. * In Figs. 168 and 169 are shown the results of tests made by Dr. Dudleywith the stremmatograph. The principle of the stremmatograph is to recordon a moving strip the molecular compression or elongation of the metal in agiven length of the base of the rail, induced by the strains produced by each 5ISCAR 4I£!CAR 3E2CAR 2tdSCAR ISJCAR TENDER ENGINE. onn nnn OOP ooo non noo onn ooo oon o o o o C JLJ n ol^ OOP soodibs. lOOOOIbs RECORD lOOIb. RAIL 6 HIGH19 Ml. PER HOUR
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Keywords: ., bookcentury1900, bookdecade1910, bookidsteelrailsth, bookyear1913
