. Railway master mechanic [microform] . e to high speed has of course oc-curred to many to apply planing motion to the light-est tool instead of to the heavy work. In special casesthis is highly successful as in the boiler plate edgeplaners in common use in locomotive shops and shipyards. In these machines two or three tools upon alight tool carriage are caused to travel to and fro uponways 12 or 15 feet long by means of a feed screw. TheBement machine of this type bevels plates for caulk-ing by the Connery system at the rate of three plates an hour, equal to the hand work of a forc


. Railway master mechanic [microform] . e to high speed has of course oc-curred to many to apply planing motion to the light-est tool instead of to the heavy work. In special casesthis is highly successful as in the boiler plate edgeplaners in common use in locomotive shops and shipyards. In these machines two or three tools upon alight tool carriage are caused to travel to and fro uponways 12 or 15 feet long by means of a feed screw. TheBement machine of this type bevels plates for caulk-ing by the Connery system at the rate of three plates an hour, equal to the hand work of a force of fifteenmen with hammers and chisels. The railroad shop does not call for light machineryto trim about a heavy casting, but for heavy machin-ery to finish light parts with absolute accuracy. Sucha machine is shown in Figure 5, a duplex connectingrod planer by the Woodward & Powell Co., of Wor-cester, Mass. Speed ofwork is obtained by duplextool heads on double housings, one pair of which ismovable. This machine has eight


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Keywords: ., bookcentury1800, bookdecade1890, bookidrailwaymaste, bookyear1895