. American engineer and railroad journal . efficient and rapid; with the Inserted tooth milling cutter, re-sulis are being obtained with (bis class of tool which cannoteven be paralleled by the planer. In the accompanying engraving we present a view of a por- each end. It travels on flat ways with heavy gibs, and has aquick return motion operated by power from a separate coun-tershaft; it can also be moved by the usual hand wheel. The feed motion of the table is operated directly through apositive gearing drive from the main driving cone, giving arange of feed through eight changes from 3 ii4
. American engineer and railroad journal . efficient and rapid; with the Inserted tooth milling cutter, re-sulis are being obtained with (bis class of tool which cannoteven be paralleled by the planer. In the accompanying engraving we present a view of a por- each end. It travels on flat ways with heavy gibs, and has aquick return motion operated by power from a separate coun-tershaft; it can also be moved by the usual hand wheel. The feed motion of the table is operated directly through apositive gearing drive from the main driving cone, giving arange of feed through eight changes from 3 ii4 to 3-8 ins. Thesechanges of feed can be mad. d tantlj bj means of a leverwithout stopping the machine. the principal dimensions of this Interesting type of tool are presented below: ions : Working surface of platen 120 Ins x 26 ins Length of bed ,,. Longitudinal feed, automatic In bi 120 Greatest distance from center of spladie to table ~- Least distance from center of spin lie ., Greatest distance from end of spindle to center of Of THE TWO 2fi RY 32 I^S. BECKER-RRAINARD PLANER-TYPE MILLINC MACHINES AT THE TOPEKASHOPS.—ATCHISON, TOPEKA & SANTA FE RAILWAY. tion of the heavy tool section Of the new Topeka Shops of Least distance from end of spindle to center of table I;;!j_ in ,, 0 _ , , , .... , . Greatest distance from end of spindle to tail stock spindle .■ Ins. the banta Fe. showing two large planer type milling machines Least distance from end of spindle to tail stock which were built by the Becker-Brainard Milling Machine Net z Company, Hyde Park, Mass. Owing to the importance of the classes of work to which these tools are applicable, a descrip- THE MACHINE TOOL OUTLOOK FOR 1904. tion of them will be of interest. These two machines are both the standard 32 ins. by 26 ins. With the large number of improvements that are planned for by 10-ft. bed horizontal milling machines of the Becker-Brain- this year by the railroads, little appreh
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
