. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . eration of which two sizes of driftpins suffice. The form of these expanders is shown in the engrav-ing. They are cut into four or six segments accordingto the size of pipe for which they are intended, and theyare split with a cutter .094 in. thick. They are held to-gether in the closed position by a rubber band set in thegroove as indicated and the corners of the segments arefiled away at A as indicated, by which a small groove isformed for the guidance of the drift pin. The expanderand the
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . eration of which two sizes of driftpins suffice. The form of these expanders is shown in the engrav-ing. They are cut into four or six segments accordingto the size of pipe for which they are intended, and theyare split with a cutter .094 in. thick. They are held to-gether in the closed position by a rubber band set in thegroove as indicated and the corners of the segments arefiled away at A as indicated, by which a small groove isformed for the guidance of the drift pin. The expanderand the drift pin are made of from .70 to .80 carbonsteel, heat treated and each segment is stamped witha stencil figure denoting the size of pipe on which it isto be used. The bore in the expander for the receptionof the drift pin is tapered one in 10 in order to fit thesame. In addition to the expander there is a solid guide ringmade of tool steel, which lias an outside diameter 1/32in. less than that of the counterbore B in the dies. Thisslips into the counterbore ahead of the shoulder on the s/d ,,7-|. Copper Pipe Flanging Dies The size of pipe for which the dies are intended isstamped on the face of each section, as indicated in theengraving of the upper section. These shims give just enough of separation to the twoparts to clamp the pipe firmly when they are broughttogether in the vise. The filler is 1 in. thick and is placed back of the diesin the vise, as indicated when flanging 2% in. or smaller S- TV ■ Wg -5 il si ■ 7 , •-, -, 3BL _fTOTAL TAP£Af#t/2 S V3 H
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
