. American engineer . ;it tlic buttuni but dnc-s not allow thesides to sway at the top, with the attendant vertical hammeringblows on the side bearings, springs and wheels. A comparison of this truck and its performance witli the stand-ard or center-bearing truck will be interesting and center-bearing truck, which at the present time is almostuniversally used, has one very grave disadvantage. Tlie loadsupposedly carried on the center plate and evenly distrilnitedto all the wheels, is, by reason of the transverse rocking of thecar and the acceleration of this movement by the tru
. American engineer . ;it tlic buttuni but dnc-s not allow thesides to sway at the top, with the attendant vertical hammeringblows on the side bearings, springs and wheels. A comparison of this truck and its performance witli the stand-ard or center-bearing truck will be interesting and center-bearing truck, which at the present time is almostuniversally used, has one very grave disadvantage. Tlie loadsupposedly carried on the center plate and evenly distrilnitedto all the wheels, is, by reason of the transverse rocking of thecar and the acceleration of this movement by the truck springreaction and attendant track conditions, at times all carried onthe wheels on one rail; not only is it thus all on half the wheels,but by reason of the every increasing load capacity of the carsand the attendant lifting of the center of gravity above the rails,the impact from the side oscilation may double or quadruple therail reaction. Wlien the impact occurs coincident with the wheel Section Through End View and Sections Through Summers All-Steel Box Car.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
