. American engineer and railroad journal . between thecenter and the outside. The standard turned test specimen, % diameter, and 2 ins. gauge length, shall be used to determinethe physical properties. (See Pig. 1.) Drillings or turningsfrom the tensile specimen shall be used to determine the chemicalproperties. Each bloom or billet must have heat number and manufacturersname plainly stamped on one end, with stamps not less than % have order number plainly marked with white lead. Blooms and billets must be free from checks, pipes and surfacedefects. Any blooms or billets chipped to
. American engineer and railroad journal . between thecenter and the outside. The standard turned test specimen, % diameter, and 2 ins. gauge length, shall be used to determinethe physical properties. (See Pig. 1.) Drillings or turningsfrom the tensile specimen shall be used to determine the chemicalproperties. Each bloom or billet must have heat number and manufacturersname plainly stamped on one end, with stamps not less than % have order number plainly marked with white lead. Blooms and billets must be free from checks, pipes and surfacedefects. Any blooms or billets chipped to a depth greater than% in. will be rejected. Any billet or bloom failing to meet the August, 1903. AMERICAN ENGINEER AND RAILROAD JOURNAL. 307 above requirements will he rejected and held, subject to disposalby manufacturers. Inspector to have the privilege of taking drill-ings from the center of the top bloom or billet of the ingot in k -ior-ii5- J ,, MM 1 „j , MM I /, ,, MM l-X - >\fii-4< SX- Mt-H-^li - —19;05 -1. no. 1. order to determine the amount of segregation. Grade A isblooms or billets for rod straps and miscellaneous forgings. GradeH Ls bloom,s or billets for driving and truck axles, connectingrods, crankpins and guides. INTERNAij COMBUSTION ENGINE IN RAILWAY SER-VICE. AN INDIVIDUAL PAPER BY If. P. C. SANDERSON. Had the internal couilnistion engine been invented before thesteam engine, it is reasunably certain now that the latter wouldnever have been developed and assumed the importaut standingin the industrial accomplishment that it has to-day, but the in-ternal combustion engine would be in its place, doing its workand very much more efficient than it is to-day. The mechanical genius of this country and Europe has, foryears, been striving with really wonderful results to improve theefficiency of the steam engine, and when we compare the high press-ure, quadruple expansion steam engines with surface conden-sersof to-day, with the long stroke,
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
