. American engineer and railroad journal . ill cut; with 3-16-in. feed, the lastthree will cut, and with >/i-in. feed all four cutters will comeinto use. • A large number of the best known machinery firms in thecountry are using this tool, and it should be used in everyrailroad shop. Further information may be obtained fromthe Edward Smith Company, Buhl Block, Detroit, Mich. Thiscompany informs us that the Chappel patent is being in-fringed and that the infringers will be prosecuted. All toolsmade under this patent bear the imprint of the W. H. Chappelmanufacture. A RAPID SKETCHING DEVICE.
. American engineer and railroad journal . ill cut; with 3-16-in. feed, the lastthree will cut, and with >/i-in. feed all four cutters will comeinto use. • A large number of the best known machinery firms in thecountry are using this tool, and it should be used in everyrailroad shop. Further information may be obtained fromthe Edward Smith Company, Buhl Block, Detroit, Mich. Thiscompany informs us that the Chappel patent is being in-fringed and that the infringers will be prosecuted. All toolsmade under this patent bear the imprint of the W. H. Chappelmanufacture. A RAPID SKETCHING DEVICE. Since prehistoric times there has been almost no improve-ment in the instruments used by mechanical draughtsmen;Herewith is illustrated a real improvement which appears tobe admirably adapted to aid the draughtsman and assist in themechanical part of his labors. This device is exceedingly ingenious and very convenient,making it possible to produce a sketch or small drawing asaccurately as may be desired, using simply a triangular The Rapid Sketching Device Applied to a Drawing Board. Chappeis Gang Tool. CHAPPELS OBLIQUE GANG TOOL. This tool is used in shapers and planers, and gives in eachstroke of the machine a series of independent and simul-taneously successive cuts of the full depth required, the resultbeing that a wide surface maybe planed at each stroke of themachine. It is, in fact, much wider than would be possiblewith a single cutter with equivalent cutting edge. In the en-graving the arrangement of the tool is clearly indicated. Eachcutter-bar has an individual orifice and individual set-screwsto hold it in position. The series of cutters has an obliquearrangement with relation to the line of motion, each cutbeing slightly in advance of the next succeeding one, eachstroke being equal to four of a single-pointed tool. It is intended for roughing cuts on cast iron and brass, andwill not work satisfactorily on wrought iron or steel. It is with which, by aid of
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
