. Railway mechanical engineer . all three trucks, the text of the specifications isgiven below. Sections wlicre differences occur have beensummarized to cover all three trucks and the differencedearly pointed out. Material Options.—\^hereve^ more than one kind of ma-terial or construction is shown on drawing or mentioned inSf>ecif\cation. it is understood that either may be furnished spects with arch bar truck where this type of truck is per-mitted. They must be made in accordance with M. C. and have a transverse section modulus in thetop member of eight for the 40-ton truc
. Railway mechanical engineer . all three trucks, the text of the specifications isgiven below. Sections wlicre differences occur have beensummarized to cover all three trucks and the differencedearly pointed out. Material Options.—\^hereve^ more than one kind of ma-terial or construction is shown on drawing or mentioned inSf>ecif\cation. it is understood that either may be furnished spects with arch bar truck where this type of truck is per-mitted. They must be made in accordance with M. C. and have a transverse section modulus in thetop member of eight for the 40-ton truck, 10 for the 50-tontruck, and 12 for the 70-ton truck. Truck Bolsters.—^To be: (I) Cast steel bolster with in-tegral center plate; (2) cast steel bolster with separate centerplate, or (3) pressed steel or built-up bolster. Inside bear-ing surface of cast steel center plate to be dressed. Caststeel and built-up bolsters must interchange with pressedsteel bolsters. Cast steel bolsters must have a section mod- 3^x3 xfg Angle. -47-9i Length of Co^-er Plate --Cirite^^ilTb^Fli^A.^iyi^i^i- -:±^ 46-6i between End Sill Angles - • - -■?--? •->.^- .T^ ~
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
