. Railroad construction, theory and practice; a text-book for the use of students in colleges and technical schools, and a hand-book for the use of engineers in field and office . nickel or of chromium wbe considered the equivalent of of carbon. The physicrequirements are: High carbon steel. Quenchedcarbon. Quench (alloysteel. Tensile strength, min., lbs. per sq. in. Elastic limit, lbs. per sq. in Elongation, per cent in 2 inches, min. 85,00016% 100,000 110,00070,000 I 85,0001,600,000-4-tens. 12% All grades: cold bending test, 90thickness of tested piece. on arc with diame
. Railroad construction, theory and practice; a text-book for the use of students in colleges and technical schools, and a hand-book for the use of engineers in field and office . nickel or of chromium wbe considered the equivalent of of carbon. The physicrequirements are: High carbon steel. Quenchedcarbon. Quench (alloysteel. Tensile strength, min., lbs. per sq. in. Elastic limit, lbs. per sq. in Elongation, per cent in 2 inches, min. 85,00016% 100,000 110,00070,000 I 85,0001,600,000-4-tens. 12% All grades: cold bending test, 90thickness of tested piece. on arc with diameter three tim( All punching, slotting and shaping is to be done at a tempeiature not less than 800° C. or 1470° F. Quenching shall be donin a bath of oil (or water, if specified) having a temperature o810° C. (1490° F.) and kept in the bath until cool enough thandle. TIE-PLATES. 286. Advantages, (a) As already indicated in § 242, the lifof a soft-wood tie is very much reduced by rail-cutting an( spike-killing, such ties frequently requiring renewal lon^before any serious decay has set in. It has been practicalljdemonstrated that the rail-cutting is not due to the merj. BONZANO RAIL JOINT, L_iJUliL ^ M^^:^ -M |l!illll
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Keywords: ., bookauthorwebbwalt, bookcentury1900, bookdecade1920, bookyear1922
