. Official proceedings . 145,000 Lbs. Av. Pressure per Sq. In. 123,931 Lbs, Area Sq. In. 150,000 Lbs. Av. Pressure per Sq. In. 124,049 Lbs Area Sq. In. CONTACTS BETWEEN 33 IN. CAST IRON WHEEL AND 100-LB. RAIL. The Car Wheel. 19 here to 37,000 lbs., which is, of course, very much in excess ofanything they are putting on a car wheel, we had an averagepressure of 138,888 lbs. I did the same thing with a steel wheel,both 78 in. and 36 in. diameter. The 78-in. piece was taken fromthe driver of a locomotive. There was a little difference in area,due to the variation in diameter, but betwee
. Official proceedings . 145,000 Lbs. Av. Pressure per Sq. In. 123,931 Lbs, Area Sq. In. 150,000 Lbs. Av. Pressure per Sq. In. 124,049 Lbs Area Sq. In. CONTACTS BETWEEN 33 IN. CAST IRON WHEEL AND 100-LB. RAIL. The Car Wheel. 19 here to 37,000 lbs., which is, of course, very much in excess ofanything they are putting on a car wheel, we had an averagepressure of 138,888 lbs. I did the same thing with a steel wheel,both 78 in. and 36 in. diameter. The 78-in. piece was taken fromthe driver of a locomotive. There was a little difference in area,due to the variation in diameter, but between the limits of carwheels ordinarily used, 7,^ in. to 36 in., the diameter apparentlymakes no difiference as far as the area of contact between thewheel and the rail is concerned as to diameter. It depends moreon the condition of the wdieel than anything else. m _ ^ _ _ 1 ^ Jt =: = = ! ft T-i -3 H - - - 4 , ? ;^ 1 , <o z J< 1 pVp »t/J r Tl ^ y -;■ •■? UUI *^ 2 ,^ 0 0 § ■ r t c 1 Z ^
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