. Railway and Locomotive Engineering. /2-in. rimthickness in place of 3 ins., but I haveevery right to expect that in view of thevery decided stand I take in this matter,any and all of you who may hold con-trary opinions at the moment will at leastconsider that it is best to investigate andstudy before taking issue with me. Proofof the correctness of my attitude israther negative in form, and necessarilyso, since I am not on the defensive inthis matter and will not be forced intoa position. I am not defending the useof lYz-in. rim thickness. I am opposingthe use of anything but I/i-m. rim thic
. Railway and Locomotive Engineering. /2-in. rimthickness in place of 3 ins., but I haveevery right to expect that in view of thevery decided stand I take in this matter,any and all of you who may hold con-trary opinions at the moment will at leastconsider that it is best to investigate andstudy before taking issue with me. Proofof the correctness of my attitude israther negative in form, and necessarilyso, since I am not on the defensive inthis matter and will not be forced intoa position. I am not defending the useof lYz-in. rim thickness. I am opposingthe use of anything but I/i-m. rim thick-ness. And if you ask me why, I willpromptly reply with the question. Why isit that 3-in. rim thickness is called forprincipally by those roads which are newto the use of solid steel wheels, or which !0J JOO «00 S(X> FT. IL\ILRO.\D SHOPS. price, with proportionately greater profit,1 hope. But as one of the engineers who,back in the days of the infancy of thesolid steel wheel, w-hen, primarily, asengineer of tests of the old Schoen SteelWheel Company, and subsequently aswheel engineer with the Carnegie SteelCompany, had much to do with the de-termination and advocacy of dimensions,I would like to question the advisabilityof disregarding our work on the strengthof computations, or guesses, or meagreexperience with a few wheels. You have all seen cases, as I have,where the mistake is made of theorizingand of then seeking substantiation. Howmuch better it is in all cases where pos-sible to enter upon consideration of a mounted on wheel seats up to and in-cluding 7-ins. diameter, and no meretheory or presumptive assertions willcause me to view the matter in a differentlight. An incident which has come tomy notice only since I prepared mypaper will interest you. A certain manu-facturer produced a few
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