. Locomotive engineering : a practical journal of railway motive power and rolling stock . ase position, throwing the ex-cess pressure into the train pipe, the airtaking the same course as usual and forc-ing the double-seated valve to the extremelimit of its travel, compressing the spring,as shown in Fig. 3, and valve-head o,closing port a, allowing no air to pass bythe valve to the axillary reservoir in theposition of brakes released. The springthen restores the double-seated valve toits normal position, as shown in .Fig. 2, inwhich it is closed to both train-pipe andauxiliary reservoir. In t
. Locomotive engineering : a practical journal of railway motive power and rolling stock . ase position, throwing the ex-cess pressure into the train pipe, the airtaking the same course as usual and forc-ing the double-seated valve to the extremelimit of its travel, compressing the spring,as shown in Fig. 3, and valve-head o,closing port a, allowing no air to pass bythe valve to the axillary reservoir in theposition of brakes released. The springthen restores the double-seated valve toits normal position, as shown in .Fig. 2, inwhich it is closed to both train-pipe andauxiliary reservoir. In the position of brakes released, thepiston 9 is moved inwardly, opening pass-age-waj 23 on opposite sides of the piston9, and allowing air to flow past piston 9to auxiliary reservoir as provided for bythe Westinghouse system. We will pay 50 cents and 75 cents, re-spectively, for paper-bound and leather-bound copies, in good condition, of theSt. Louis Proceedings of the Air-BrakeMens 1895 Convention. Persons desiringthese copies may have them at same priceuy sendmg ten cents for LocJiHotivs Engineering Fig. 3 March, 1899. LOCOMOTIVE ENGINEEliINO 137 Use of Sand—Rail Cleaning Device. On page 563 of the Uccciiibcr issue otLocomotive Engineering there appearedan able article by E. W. Pratt, on WhoSlides Wheels? embracing some goodsuggestions relative to how to overcomethe sliding of wheels on fast trains andbad rail. Each of us would gladly welcome thesolution of this subject, but it seems to beone upon which even experts may honest-ly differ. The Air-Brake Association reconi- ually decreasing, of course, as the speedis being reduced, until jusl before the finalstop, when they arc about equal. This, ofcourse, is on good dry rail. It would seemfrom this (and practice will demonstrateit) that we have a good, safe margin infollowing Mr. Pratts suggestion abouttwo applications, in the manner he de-scribes—but omit the sand on first appli-cation. It may be used to good adva
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroa, bookyear1892
