International Correspondence Schools · Scranton, Pa. : The Colliery engineer co. · leaf 519
recommended. Itgives to the main line the smoothness of an unbroken track;it is simple in its construction, thoroughly substantial, and isplaced in position with the least amount of labor. As shown in the figure, the fixed parts of \\\q. patent keyedspring frog a.VQ bound together by two heavy… … G is made of twopieces of steel railfitted and dovetailedtogether by machin-ery, without beingheated, and securelyriveted together. Theflange way betweenthe point and wingrails is maintained byclosely fitting ironthroat-pieces e and /(shown in the detailsections A and B),^ which are prevented^ from…
Railroad engineering
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
