. Locomotive engineering : a practical journal of railway motive power and rolling stock . ing weight ofcars—for these the pace has been met byincreasing the size of material in the archbars; thats all—the shape of truss gen-erally remaining the same as before,whether right or wrong, in order that thestandard may not be departed from. Champions of the old practice have re-sorted to almost every means known tothem to galvanize into renewed life theirweak construction, and in their zeal havenot stopped, even, with an inversion ofproportions thereof, by giving the parts spective members should ha
. Locomotive engineering : a practical journal of railway motive power and rolling stock . ing weight ofcars—for these the pace has been met byincreasing the size of material in the archbars; thats all—the shape of truss gen-erally remaining the same as before,whether right or wrong, in order that thestandard may not be departed from. Champions of the old practice have re-sorted to almost every means known tothem to galvanize into renewed life theirweak construction, and in their zeal havenot stopped, even, with an inversion ofproportions thereof, by giving the parts spective members should have such a sec-tion that the upper bar would begin tofail by flexure at the exact instant thatthe lower bar failed by tension. Thismight also be hard to find; but a healthyapproximation to it has been reached bynot losing sight of the fact that the weak-ened section of the lower bar, due to theholes for the oil-box bolts, must have fullconsideration, and also bearing in mindthat the upper bar is a beam fixed at bothends, and therefore in the best conditionpossible to resist e
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroa, bookyear1892
