. American engineer and railroad journal . EW PIPE THREADING AND CUTTING MACHINE. A new size of pipe threading and cutting off machine, knownas the P. D. Q. C. No. 6, has recently been brought out by theBignall & Keeler Mfg. Co., Edwardsville, 111. The machine isparticularly adapted for shops having large quantities of pipe ofone size to thread at one time. It is equipped with a quickoperating chuck, controlled by a hand wheel and pinion whichengages in a segment gear on the end of the cone shifting cone slides freely on the arbor; as it is moved forward roll-ers on the ends of the chu
. American engineer and railroad journal . EW PIPE THREADING AND CUTTING MACHINE. A new size of pipe threading and cutting off machine, knownas the P. D. Q. C. No. 6, has recently been brought out by theBignall & Keeler Mfg. Co., Edwardsville, 111. The machine isparticularly adapted for shops having large quantities of pipe ofone size to thread at one time. It is equipped with a quickoperating chuck, controlled by a hand wheel and pinion whichengages in a segment gear on the end of the cone shifting cone slides freely on the arbor; as it is moved forward roll-ers on the ends of the chuck jaw arms roll up on the surfaceof the cone, and the arms being thereby spread apart tightenthe jaws on the pipe. The gripping chuck can be operated whilethe machine is running and the jaws Deing once set for a of which, if satisfactory in other ways, can attend any collegeor technical school desired. Two men will be chosen this year,two more the following year, etc., finally making eight men whowill be kept in college by this Cost of Locomotive Operation.—In a contributed discussionon the subject of Electric vs. Steam Locomotive, printed inthe March proceedings of the Amer. Inst. Elect. Engineers, S. Murray gives some figures obtained from tests and rec-ords of freight and passenger locomotives operating on the NewYork division of the New York, New Haven & Hartford R. is shown that in express passenger service the average poundsof coal per indicated horse-power hour was and in localpassenger service it was This includes all the coal burneddivided by the total horse-power hours for 18days service, these being based on the averagehorse-power obtained from careful tests overthe division. The number of pounds of coal perrevenue ton mile for express, local and freighttrains is .194, . and .169 respectively. Thecost of repairs for freight engines, which ap-parently covers about 10 locomotives for oneyear, was cents per mile and the cost ofma
Size: 1989px × 1257px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
