s,were used for the tests. The testing machines weremade by Tinius Olsen & Co., one with a capacity of100,000 lbs. and the other a capacity of 50,000 lbs. The apparatus is shown in the accompanyingillustrations for the skidding movement. The wheelsection was set on the rail and loaded by the… … ^^^^^^^^^^^M^^^^^^^^ PLj4TE// of rSST/A/C AMCM/A/E f ARRANGEMENT OF APPARATUS FOR TESTING THE FRICTIONAL RESISTANCEOF CAR WHEELS TO SPINNING. In loading the wheel, the pressure was appliedthrough a plate resting on two rollers. In this waythe friction, except that between the wheel and therail, was…
Railroad cars
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