. Official proceedings . .\—Ilanjc- 1 >i ill Thick, 1^... in. ilirougli 1% ii; Tliick. 3., in. riir(ui-li Tli-Mut. rig. 23—Pieces of Flange Broken Out of 33 in. Wheels in Test Illustrating How ihe Direction of Fracture Varies as the Throat Thickness Is Increased. Xotwithstaiidino- this hipiily satisfactory result, the samereport. Exliil)it A. here shown in Tahle lo. shows that flangefailures gravitate toward the cars of heavy capacity as sum-marized in Table 11. It is obvi()Us from this reijort that the flanges on the wheelsunder jjounds cai)acity cars are not r


. Official proceedings . .\—Ilanjc- 1 >i ill Thick, 1^... in. ilirougli 1% ii; Tliick. 3., in. riir(ui-li Tli-Mut. rig. 23—Pieces of Flange Broken Out of 33 in. Wheels in Test Illustrating How ihe Direction of Fracture Varies as the Throat Thickness Is Increased. Xotwithstaiidino- this hipiily satisfactory result, the samereport. Exliil)it A. here shown in Tahle lo. shows that flangefailures gravitate toward the cars of heavy capacity as sum-marized in Table 11. It is obvi()Us from this reijort that the flanges on the wheelsunder jjounds cai)acity cars are not relatively as strongas the flanges on wheels unfler pounds capacity , if there are any broken flanges on the 625 poundwheels o])erating tmder cars wdiose gross load is ])Ounds,we must reasonably expect a greater number of broken flangeson 725 pound wheels which operate under cars having a grossweight of I)!.000 ]:) when the flange thickness is the sameon both wheels, the only difference being a slight thickening oftread in the 725 pound whee


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