. Railway mechanical engineer . n. wide,over which a short carriage is traversed, gibbed to take up forwear, with a heavy column securely mounted. The columnhas one upright face finished with wide, fiat tracks and agibbed carriage with a 2-in. elevating screw for vertical move-ment of the grinding wheel. On this carriage there are hori-zontal tracks with a carriage for feeding the wheel up to thework. Movement of the carriage is by means of a lj^ and a 14 in. hand wheel. On top of the horizontalcarriage there is a turret pivoted at the center so as to grindthe work square across or at
. Railway mechanical engineer . n. wide,over which a short carriage is traversed, gibbed to take up forwear, with a heavy column securely mounted. The columnhas one upright face finished with wide, fiat tracks and agibbed carriage with a 2-in. elevating screw for vertical move-ment of the grinding wheel. On this carriage there are hori-zontal tracks with a carriage for feeding the wheel up to thework. Movement of the carriage is by means of a lj^ and a 14 in. hand wheel. On top of the horizontalcarriage there is a turret pivoted at the center so as to grindthe work square across or at an angle, with a clamping screwat each corner to hold the turret firmly where placed. Themotor and grinding wheel spindle are bolted to the turret so that both move together when swiveled. The machine has awide-faced fibre pinion meshing into a gear about twice itsdiameter on the back end of the grinding wheel spindle. Thisprovides a back gear arrangement of about 2 to 1. The wheel spindle runs in ball bearings with end thrust. Wheel Drive and Elevating Mechanism ball bearings each way, adjustable endwise for any wear. It isstated that machines have been run constantly for eight yearson hard work, with bearings thus constructed, and have given,the best of satisfaction. The grinding wheel is made up of 14sectional blocks forming a wheel 32 in. in diameter, 8 in.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
