. Official proceedings . ^ flanges ]:)assed the stage without breaking,all of these failures would have been avoided. And it is reason-able to supi)ose that if ••-inch had Ikcu aided to the backs ofthe remaining 17 danges that considerable jx^rcentage would nothave failedi. Wheels having norn^al flange seldom break unlessa scam is present to weaken the metal. When seams are ])resentextending through the tread the safety of the tlange depends. Fig. 24—Sketch Shewing Line of Fracture on Wheel WithBroken Flange. 246 upon the niotal represented by the thickness of the flange, for t
. Official proceedings . ^ flanges ]:)assed the stage without breaking,all of these failures would have been avoided. And it is reason-able to supi)ose that if ••-inch had Ikcu aided to the backs ofthe remaining 17 danges that considerable jx^rcentage would nothave failedi. Wheels having norn^al flange seldom break unlessa scam is present to weaken the metal. When seams are ])resentextending through the tread the safety of the tlange depends. Fig. 24—Sketch Shewing Line of Fracture on Wheel WithBroken Flange. 246 upon the niotal represented by the thickness of the flange, for thefracture must extend throui^h the llanj^e at two points before a])iece can he broken out. This is iUustrated in tlie tread \\c\v iniigure J4. It is very essential in wheels of this character thatthe thickness of Han^e should be as i^reat as possible, in orderthat the flange l)e maintained intact a sufficient length oftime to allow the defect to be detected and removed from every ])oint of view it i^ desirable to use the maximumflange thickness ]:)ernutte:l liy track clearances. It is not onlytine that the i- -inch flange thickness can be obtained, but it isalmost certain that another ^-inch could be secured if there wasa united effort m this dn-ectiou, in a request to theA. R. I*^. A. to ado]^ i~s-inch as the clearance between runningrail and guard rail which is alread\ used to a large extent. Assuming that the i)re
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Keywords: ., bookauthorrailwayc, bookcentury1900, bookdecade1900, bookyear1901
