. American engineer and railroad journal . is radicallydifferent from that of trucks now used under electric carsin this country. They are notable because of their simpledesign, the small number of parts and the substantial con-struction. In these respects they correspond more nearly tothe trucks used under our heavier passenger cars, and the with steel-tired wheels 3G ins. in diameter. The design of thecast-steel side frame, the absence of equalizers, the method ofspring suspension and the application of the journal boxesare in many respects similar to corresponding features inlocomotive cons
. American engineer and railroad journal . is radicallydifferent from that of trucks now used under electric carsin this country. They are notable because of their simpledesign, the small number of parts and the substantial con-struction. In these respects they correspond more nearly tothe trucks used under our heavier passenger cars, and the with steel-tired wheels 3G ins. in diameter. The design of thecast-steel side frame, the absence of equalizers, the method ofspring suspension and the application of the journal boxesare in many respects similar to corresponding features inlocomotive construction. The absence of equalizers and theopen design of the side frame make it possible to readily givethe truck a careful inspection when in service. The cast-steelside frame, shown in detail in one of the drawings, is designedfor a low-fibre stress in all parts. The pin holes are fittedwith 2%-in. steel bushings. The frames are tied together atthe ends by 4 by 6 by % in. angles. The cast-steel transoms are of channel section 11%
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
