. American engineer and railroad journal . gthsand heights of work, and the face of the bar is grooved, intowhich corresponding tongues on the yoke washer fit, to relievethe stroke adjusting screw of strain when taking cuts. The sideadjustment of the bar in the guide is made by a continuous tapershoe which is considered a very great advantage over the formermethod of using an English shoe having elongated holes, and the adjustment made by set screws. The counterweight arm isforged of steel; the cutter bar guide is of very heavy construc-tion ; has square locked gibbed bearings to the frame, an
. American engineer and railroad journal . gthsand heights of work, and the face of the bar is grooved, intowhich corresponding tongues on the yoke washer fit, to relievethe stroke adjusting screw of strain when taking cuts. The sideadjustment of the bar in the guide is made by a continuous tapershoe which is considered a very great advantage over the formermethod of using an English shoe having elongated holes, and the adjustment made by set screws. The counterweight arm isforged of steel; the cutter bar guide is of very heavy construc-tion ; has square locked gibbed bearings to the frame, and isadjustable by hand to support the bar when cutting in its lowestpositions. The face of the crank plate is grooved, and cor-responding tongues on the connecting rod fit into these groovesto relieve the stroke adjusting screw when taking cuts. Thebearing or trunnion for the large driving plate gear is cast solidwith the frame, and the drive is by means of motor or four-stepcone through Whitworth motion, giving quick return to HIGHLY DEVELOPED HEA\Y SLOTTEF. The work table is of very heavy construction with ampleclamping facilities, and has a large circular bushed bearing inthe cross slide, and the table is surrounded by an oil pan. thetop edge of which serves for a bearing for the continuous cir-cular shoe. The rotating- worm wheel is cut from the solidand the table is indexed with a pointer mounted in a smallslot. Adjustment of the circular table saddle to thecross slide is made by means of taper shoes, and thecross saddle has square locked gibbed bearings to the distinct departure in this type of machine is, that thein-and-out feed screw remains stationary and the adjustment isobtained by a combination bevel gear and nut, which gives avery substantial construction, and permits of a bearing on eachend of the adjusting screw. There is provided variable re-versible automatic power feed to the circular, cross, and in-and-out movements, in addition to hand adj
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
