. American engineer and railroad journal . chine illustrated is intended for work 36 ins. wideand 36 ins. high. The width between uprights is 43 ins. Thetable is 35 ins. wide and S ft. long, but the machine can bebuilt to mill any desired length. The horizontal spindleshave eight speeds, a maximum diameter of S ins., and a ^^^tfMSil ... ... 1 mm Pflfl iiH INTERLOCKING MILLING CUTTERS. traverse of 10 ins. The maximum distance from the centerof the horizontal spindles to the table is 30% ins., minimum4 ins. The maximum distance between the ends of the hori-zontal spindles is 43 ins. The maximum
. American engineer and railroad journal . chine illustrated is intended for work 36 ins. wideand 36 ins. high. The width between uprights is 43 ins. Thetable is 35 ins. wide and S ft. long, but the machine can bebuilt to mill any desired length. The horizontal spindleshave eight speeds, a maximum diameter of S ins., and a ^^^tfMSil ... ... 1 mm Pflfl iiH INTERLOCKING MILLING CUTTERS. traverse of 10 ins. The maximum distance from the centerof the horizontal spindles to the table is 30% ins., minimum4 ins. The maximum distance between the ends of the hori-zontal spindles is 43 ins. The maximum diameter of the ver-tical spindles is 6 ins.; traverse, 8 ins.; number of speeds,sixteen. The maximum distance from the ends of the ver-tical spindles to the table is 42 ins., minimum 8 ins. Thismachine is made at the Bement works of the Niles-BementPond Company. One of the illustrations shows an interlocking milling cuttermade by the Pratt & Whitney Company, which may be used June, 1906. AMERICAN ENGINEER AND RAILRI IAD JOURNAL. 2 15. RTDOEWAY HEAVY 90-IN. DRIVING WHEEL LATHE. for the channeling of locomotive rods, or for similar workwhere it is necessary to have a given width of groove andmaintain a constant width of cut. The cutters are made inhalves, the teeth of one-half interlocking with the other the cutters are ground, washers can be placed between thetwo halves, thus keeping the width constant. This may alsobe accomplished with the inserted teeth cutters. HEAVY 90-INCH DRIVING WHEEL LATHE. In a recent test the heavy 90-in. motor-driven Ridgewaydriving wheel lathe, illustrated herewith, turned a badly wornpair of driving wheels, 57 ins. in diameter, in 59 minutesactual cutting time. The machine stood on the floor of theshop at the builders, and it was, therefore, impossible to forceit to an extent that would have been possible if it had beenset on its proper foundation. A %-in. cut with a %-in. feedwas operated at a rate of 1G ft. per minute for the first 1%ins.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
