. The railroad and engineering journal . lthe cutter-head is in its place, it is ready for work. The feedcan be thrown out of gear at any time by simply screwing upthe round-milled nut, and by loosening the nut the machinewill feed automatically. The larger sizes of this machine aremade with convenient change of feed so that after the rough-ing or truing cut has been taken, it can be instantly changedto a coarse feed, linishing quickly and accurately. An at-tachment is made withthe driving power forholding it in position,rigid anil (inn, one endbeingfastenedattheex-tremeend of the drivin3power


. The railroad and engineering journal . lthe cutter-head is in its place, it is ready for work. The feedcan be thrown out of gear at any time by simply screwing upthe round-milled nut, and by loosening the nut the machinewill feed automatically. The larger sizes of this machine aremade with convenient change of feed so that after the rough-ing or truing cut has been taken, it can be instantly changedto a coarse feed, linishing quickly and accurately. An at-tachment is made withthe driving power forholding it in position,rigid anil (inn, one endbeingfastenedattheex-tremeend of the drivin3power, the other at thecrosshead. By ijlacingthe crosshead verticallythe driving power canstand horizontally, theis a c c u r a t e I >■round, bearings■^craped out to fit andit will stand a greatamount of wear beforeloss of motion occurs-Cutter-heads are fur-machines are built anyor power as desired,jrning by hand ; lig. 2, nished for boring driving-boxes. Thesesize required and can be run by hancFig. I, shows machine with crank for t.


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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887