. Railway mechanical engineer . e face Could not be accurately Could not be accurately Both cut .md w nni liaillv measured due to cut sur- measured due to cut sur-face face Could not be accurately Could not be accurately Both cut and worn badly measured due to cut sur- measured due to cut sur-face face Could not l>c accurately .047 .038750 Bulli rut immediately measured due to roughsurface and cutting Could not be accurately .102 .063750 Culling after twenty minutes measured due to cut sur-face None .043 .010238 Roukh .surfaec ruts shoe .017 .001 . . . . .0
. Railway mechanical engineer . e face Could not be accurately Could not be accurately Both cut .md w nni liaillv measured due to cut sur- measured due to cut sur-face face Could not be accurately Could not be accurately Both cut and worn badly measured due to cut sur- measured due to cut sur-face face Could not l>c accurately .047 .038750 Bulli rut immediately measured due to roughsurface and cutting Could not be accurately .102 .063750 Culling after twenty minutes measured due to cut sur-face None .043 .010238 Roukh .surfaec ruts shoe .017 .001 . . . . . .008095 Good ccmbinaliimmanufacture too Both badly cut but cost ofexpensive .012521 Bclh cut .00071 conihinnlion,for practical ii»c but too brittle . .001104 .000071 Both cut GiKxl cninbinnlinn cal for une on combinalicn faces glazedGiHid cnmbinnlion faces ulazed but impracti- ndard pedestal friction «ur- friclinii »ur- . combination faces glazedl-viellrni; fricC f rid ion sur-. Eliminate Costly Hand Fitting and Filing Many Operations, More Profitably Done on Modern Mill-ing or Grinding Machines than by Filing, Are Outlined By M. H. Williams THE continued extensive use of files in some railroadshops is largely due to precedent, and the sooner ma-chines are installed to eliminate hand fitting and filingthe better. A file is cheap. Unfortunately the man behinda file is expensive when compared with the same manoperating a modern milling or grinding machine whichdoes the same work far better and in less time. It is con-sidered a good investment to replace an old style lathe by amodem one, where a saving of 10 to 20 per cent can beefiected. It is a better investment to install enough modernmachines so tliat filing or other hand fitting operations willbe unnecessary. It would take too much space to consider in detail allrailroad shop operations which can be done more profitabhby machines than by hand filing but several of the moreimp
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
