. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . wanson, Chicago, 111., hasinvented and patented an improved flueexpander. No. 814,248. The apparatusconsists of a shaft tapered inwardhfrom one of its ends and adapted at theother end to engage means for giving itrotary motion with a pair of collarsspaced apart and fixed on the shaft nearits power engaging end. An externallyscrew threaded outer sleeve is inter-posed between the two collars, and anauxiliary sleeve extends toward thetapered portion of the shaft. A rollernest or recess is secure
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . wanson, Chicago, 111., hasinvented and patented an improved flueexpander. No. 814,248. The apparatusconsists of a shaft tapered inwardhfrom one of its ends and adapted at theother end to engage means for giving itrotary motion with a pair of collarsspaced apart and fixed on the shaft nearits power engaging end. An externallyscrew threaded outer sleeve is inter-posed between the two collars, and anauxiliary sleeve extends toward thetapered portion of the shaft. A rollernest or recess is secured within theauxiliary sleeve and rollers are looselymounted in several openings. Themechanism difTcr; from the Dudgeon expander in the fact that the threadedsleeve draws the taper shaft slowly out-ward and the expansion of the flue isnot dependent upon the irregular forc-ing of a taper plug by hammering. STUFFING BOX. An ingenious improvement on stuff-ing boxes has been invented and pat-ented by Mr. F. W. Felsberg, Dayton,Ky., No. 816,45s, consisting of a casinghaving a plurality of fixed threaded. METHOD OK TIGHTENING ). bolts projecting therefrom, a gland, aplurality of gear-nuts rotatably mount-ed on the bolts, an idler-gear concentricwith the shaft and meshing with thegear-nuts, the arrangement being suchthat all parts of the gland will be moveda uniform distance parallel to the shaftwhen a rotary movement is given toany one of the nuts. The contrivanceprecludes the possibility of the glandbearing irregularly on the shaft orpiston. BOILER. A form of boiler has been patentedby Mr. William N. Rumely, Laporte,Ind. In addition to the usual enclosedfire box with extended shell and flues,the sides of the fire box are formedcontinuous with itsfloor, as shown in theaccompanying illustra-tion, the floor of thefire box forming acurve with its concav-ity upward, with clean-ing openings in thetliroat sheet and outerdoor sheet, at the for-ward and rear extrem-ities of the spacesfo
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
