ad of 526,612 lbs. This was more than 4.7 timesthe load required to break the strongest part of thereinforced flange and more than 11 times the load re-quired to break the weakest of the standard flanges. The ratio of 4.7 to i corresponds fairly closelywith the ratio of the tensile strength of the… … TRACK APPARATUS FOR ASCERTAINING WHEEL AND RAIL PRESSURES. first-class wheel mixtures broke at from 16,000 lbs.to 17,000 lbs, while test specimens, carefully groundfrom the white chilled iron of a car wheel, brokeunder loads as high as 36,000 lbs. The lack of any data on the stresses to whichwheels…
Railroad cars
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