. American engineer and railroad journal . THE POST TIE. with wooden ties, and the Post and Braet metjdlic ties, thehours devoted to each, as indicated above, was 350. 1,015 and1,505 respectively, showing that the average of the work onthe metallic ties was more than three times the amount of thatrequired by the wooden. Such difference as this demandssome kind of explanation. One of the first of this ele-vation of the cost of maintenance of metallic ties is that themetallic tie is hollow, and that the ends are closed in order toresist lateral displacement of the track. The tie thus im-
. American engineer and railroad journal . THE POST TIE. with wooden ties, and the Post and Braet metjdlic ties, thehours devoted to each, as indicated above, was 350. 1,015 and1,505 respectively, showing that the average of the work onthe metallic ties was more than three times the amount of thatrequired by the wooden. Such difference as this demandssome kind of explanation. One of the first of this ele-vation of the cost of maintenance of metallic ties is that themetallic tie is hollow, and that the ends are closed in order toresist lateral displacement of the track. The tie thus im-. KAIL FASTENING FOR THE POST TIE. prisons in the hollow space beneath it a quantity of ballast,which soon becomes hard anil compact. Then if the trackrequins redressing horizontally, it is necessary, first of all, toaec-omplish it by demolishing this ma-ss of ballast. That isone of the dilTiculties which does not exist on a track laid on%vooden ties, where it is merely necessary to remove the bal-last which is banked up one of the ends of the form of the tie renders it equally dillicidt to tamp thetrack properly. Finally, the last cause of this excessive ex-pense of maintenance is not the least, and that is it causes araiiid deterioration of the ballast under its whole length. Vol. LXVII, No. 9.] AND RAILROAD JOURNAL. 431 Mr. FliuiiiielK, wlio is CUlat Engineer of the Bulgian StaloRailwiiys and Professor of the Course of Railway at the University of Gand, presented a paper at the Inter-national Congress of Railways at St. Petersburg, giving theresult
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
