Show Keeps ees Car on Rails Many people think that a n train uain Is kept on the rails by the time flange or rim that Is on the inside edge of the wheel This flange steadies the time car cat but hut does not keep leep it on U the e rails mails The rail is slightly rounded on top as Is the time rim lim of ot the car wheel so that the wheel does docs not rest sq squarely larely O oil on 1 the tail The Time outer circumference of time the wheel heel is smaller than the Inner and the wheel rests on the inner slope of the time rounded rail In running the wheels press press outward because It Is easier for them to run lun along the smallest edge and on top of the time rail By Dy pushing outward and exerting the same force In opposite directions the wheels Keep leep each other balanced and andon andon andon on the time rails rans |