. Railway mechanical engineer . -Jtn£- 1. April, 1918 RAILWAY MECHANICAL ENGINEER 203 truck, while nominally for cars of that capacity, is requiredto carry a load of 121,000 lb. in addition to the light weightof the car body, thus making it available for use under 55-ton cars. Except in tlie case of those sections which are notidentical for 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
. Railway mechanical engineer . -Jtn£- 1. April, 1918 RAILWAY MECHANICAL ENGINEER 203 truck, while nominally for cars of that capacity, is requiredto carry a load of 121,000 lb. in addition to the light weightof the car body, thus making it available for use under 55-ton cars. Except in tlie case of those sections which are notidentical for 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 p
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
