. Railway and Locomotive Engineering . speed arc provided by threestep cone and throwout back gears. The macliine weighs approximately poiimis. ply i)ipes are provided with shut-off valvesand sight feeders. The pipes leading tc^the two injectors are combined and ledthrough a single tube to a point near thetop of the chemical supply tank. The re-sult is that a suction upon the chemicalfeed pipe system is necessary to raise thechemical solution from the storage , therefore, the injectors are not inoperation, supply of chemical auto-matically ceases. When, however, eitherinje
. Railway and Locomotive Engineering . speed arc provided by threestep cone and throwout back gears. The macliine weighs approximately poiimis. ply i)ipes are provided with shut-off valvesand sight feeders. The pipes leading tc^the two injectors are combined and ledthrough a single tube to a point near thetop of the chemical supply tank. The re-sult is that a suction upon the chemicalfeed pipe system is necessary to raise thechemical solution from the storage , therefore, the injectors are not inoperation, supply of chemical auto-matically ceases. When, however, eitherinjector is put in operation, the suctioncreated in the chemical supply pipe raisesthe chemical solution from the bottom ofthe storage tank to supply chemical inproper proportion, as determined by thesetting of the chemical regulating valve is of novel construction andfunction, and is arranged to prevent in-crustation and faulty and irregular opera-tion resulting thcrcfrotn. The regulatingvalve is at the bottom of the induction. li !• I I 1 |:ri; I I iM I \.\ Y Ml Chemical Feeder. A [lateiil has been to Joseph |ier of , Kan., .-nul assigned t»itlie Dearborn Drug & Clirmical Works ofChicago, for a elu mical feeder whichseems to be particularly useful for loco-motives that rei|uire to have the feedwater treated for hanlening imiuirilies. The invenli(iU calls for the a reservoir to bold the chemicals whichare supplied to the lioiK-r by the injection.■] he connections are so arranged llial tlieinjector operates ;uitouiatically to C(unrolthe sui}ply of compound or chemical in|.rop(>rtions predetermined in accordancewith an analysis of the water fed to theboiler. The chemical supply pipes are con-iKCt<(l with the suction pipis or chauibersof the two injectors. of the chem-ical supply pi|ies is pnnided with a check\ahe. whereliy the opiratiou of either injector will elTecl the |) o|ieralioii ofthe chemical feeding appa
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyork, bookyear19
