. Official proceedings . l ■ ^ to 5^ ■^ ~1 Cn H i ^ ■ ^1 •s ^ —^ ! ^ S sc S ; — .25 di • 1^ x ~1 X ■ ^CM z ~- n — — — . — — — (UF^ o CO -r o s P. :5 = ; s 0^ ■ m • ^ u; Vi — ; ^ 4> ^Z, r^ n) c - 1^ ■b s 4) 1 X /V > ^ r^ to ■J — ^ 4J ^ -7j a r^ S O O •a t; 7 rtH 260 from |)i\-S(.nt niaxinunn loads to loads radicalK hcxond the pos-sibility of railroad service, develoj) tests were made of 21,000l)ounds, ])omids, 150,000 pounds and 200,000 pounds andthe maximum stresses under these loads are shown in Iable 15. Tlu onl\ item worthy of comment rei^ardint;- tlie stressesunder vertical lo
. Official proceedings . l ■ ^ to 5^ ■^ ~1 Cn H i ^ ■ ^1 •s ^ —^ ! ^ S sc S ; — .25 di • 1^ x ~1 X ■ ^CM z ~- n — — — . — — — (UF^ o CO -r o s P. :5 = ; s 0^ ■ m • ^ u; Vi — ; ^ 4> ^Z, r^ n) c - 1^ ■b s 4) 1 X /V > ^ r^ to ■J — ^ 4J ^ -7j a r^ S O O •a t; 7 rtH 260 from |)i\-S(.nt niaxinunn loads to loads radicalK hcxond the pos-sibility of railroad service, develoj) tests were made of 21,000l)ounds, ])omids, 150,000 pounds and 200,000 pounds andthe maximum stresses under these loads are shown in Iable 15. Tlu onl\ item worthy of comment rei^ardint;- tlie stressesunder vertical load is that the largest stress for a 200,000 poundwheel load is below 20,000 pcnuids per sqtiare inch and that thestresses are not at all s\inmetrical through the metal. As faras wheel loads are concerned, they are of no direct importance])ut indirectly the load determines flaui^e pressure, developmentof heat, O DESlGN/^ES STRESSES IN TANGENTIAL GAUCtE LINCS■ n . RAPIAL Fig. 30—Showing Location and Intensity of Compressive and Tensile Stresses Developed in the OUTSIDE Plate of a 725 lb. M. C. B. Wheel Under a Vertical Load of 200,000 Pounds. Temperature stress of the greatest magnitude within the car wheelis produced by the difiference in temperature between tread andImb resulting from brake friction. This difference in tempera- 261
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Keywords: ., bookauthorrailwayc, bookcentury1900, bookdecade1900, bookyear1901
