. The Street railway journal . g a total range ofcutting speeds at the wheel of from lo ft to 23 ft. per permits tire truing to the best advantage upon all tiresfrom 48 ins. to 90 ins. in diameter. This tool is also equippedwith a 5-hp type-S motor, operating at constant speed fortraversing the movable headstock for convenience in puttingin pairs of wheels. The second machine illustrated is the heavy Niles double-axle lathe of the center-drive type, which will take in axles and 888 STREET RAILWAY JOURNAL. [Vol. XXV. No. 19. forgings up to 123/^ ins. in diameter, and is designed to
. The Street railway journal . g a total range ofcutting speeds at the wheel of from lo ft to 23 ft. per permits tire truing to the best advantage upon all tiresfrom 48 ins. to 90 ins. in diameter. This tool is also equippedwith a 5-hp type-S motor, operating at constant speed fortraversing the movable headstock for convenience in puttingin pairs of wheels. The second machine illustrated is the heavy Niles double-axle lathe of the center-drive type, which will take in axles and 888 STREET RAILWAY JOURNAL. [Vol. XXV. No. 19. forgings up to 123/^ ins. in diameter, and is designed to operatetwo cutting tools at heavy duty upon opposite ends for turningwheel seats and journals. This tool is driven by a 20-hp type-SWestinghouse variable-speed motor, so that heavy cutting ser-vice is provided for. The motor has a speed range of 340r. p. m. to 1200 r. p. m., also operated by a hand controller. Themotor is mounted upon an extension of the bed plate anddrives the mechanism through gearing. Other tools on exhibit. ; o 5 i J DOUBLE-AXLE LATHE OF THE CENTER-DRIVE TYPE were a Putnam roughing lathe, driven by a 50-hp motor witha speed range of from 500 r. p. m. to 1000 r. p. m.; and a Sellersuniversal tool grinder, driven by a 7y2-hp motor, mounted on abed-plate extension and belt-connected to the driving shaft. HIGHWAY CROSSING SIGNALS ON THE AURORA, ELGIN &CHICAGO RAU-WAY The Aurora, Elgin & Chicago Railway Company has a num-ber of alarm bell highway crossing danger signals at streetcrossings in the suburban towns through which it passes. Twotypes of signal are in use. One of these is the Sedwick signal,
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
