. American engineer and railroad journal . se were, of course, mademale and female, as shown in the above reference, this in orderto clamp ^ in. pipe as well as the IA in. size. The remaining points of interest are clearly apparent in theillustrations and scarcely require further explanation, but somecomment on the speed is advisable. As will be noted, the ma-chine has a two-step cone and the pulleys were so proportionedthat the spindle made 45 revolutions on the highest speed and20 on the lowest, equivalent to a cutting speed of 12 feet perminute which left a clean-cut thread. The machine was
. American engineer and railroad journal . se were, of course, mademale and female, as shown in the above reference, this in orderto clamp ^ in. pipe as well as the IA in. size. The remaining points of interest are clearly apparent in theillustrations and scarcely require further explanation, but somecomment on the speed is advisable. As will be noted, the ma-chine has a two-step cone and the pulleys were so proportionedthat the spindle made 45 revolutions on the highest speed and20 on the lowest, equivalent to a cutting speed of 12 feet perminute which left a clean-cut thread. The machine was alsotried cutting thread on in. pipe on the fastest speed, that of18 ft. per minute, but it was found that this resulted in aragged thread. The pulleys were finally proportioned so that onthe lowest cutting speed 14 ft. per minute was secured withlyi in. pipe. The machine is in daily use in one of the largewestern railroad shops, and is considered to do the work withthe best economy considering all factors. W Top View \y FIG. 4. New Locomotive Terminal Facilities at Bloomington, 111. CHICAGO & ALTON RAILWAY rou THE TIIIUI) TL\IK THE CHICAGO & ALTON RAILWAY HAS FOUND IT NECESSARY TO liUILD A LARGER UOUNDHOCSE. WITH ATTENDING FACILITIES, AT BLOOMINGTON. AND ARE NOW JUST PUTTING INTO SERVICE A USTALL ROUNDHOUSE. WITH MOJJERN COALING STATION AND CINDER PITS OF SUITABLE CAPACITY WHICH WAS DESIGNED AND nUILT BY WESTINGHOUSE, CHURCH, KERR & CO. On new ground acquired for the purpose, adjacent to the mainrepair shop at Blooniington, 111., the Chicago & Alton Railwayhas erected a very large roundhouse. It contains 44 stalls, istoo ft. 6 in. between circular walls, and is provided with a lOOft. turntable, together with two cinder pits serving four tr^,cks,each being 201 ft. 4 in. in length, and a large mechanical coalingstation, spanning four tracks, having a storage capacity of 525totis. A large sand house, sand dryer, and necessary equipment,together with two 100,
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
