. American engineer and railroad journal . PEDESTAL IX , MAC HINE. ated by the eccentric on the milling head which drives llie squarevertical shaft, which in turn drives the feed screw by a ratchetand pawd. The feed may be varied to suit requirements. The milling head may be quickly and accurately adjusted, as ithas a motion to and from the leg and crosswise. The universaladjustable clamps at the bottom secure the device rigidly to theframe. The spindle is threaded to receive the milling cutters: the cut-ting tools are of high speed steel and are removable for grindingand adjustment. The s
. American engineer and railroad journal . PEDESTAL IX , MAC HINE. ated by the eccentric on the milling head which drives llie squarevertical shaft, which in turn drives the feed screw by a ratchetand pawd. The feed may be varied to suit requirements. The milling head may be quickly and accurately adjusted, as ithas a motion to and from the leg and crosswise. The universaladjustable clamps at the bottom secure the device rigidly to theframe. The spindle is threaded to receive the milling cutters: the cut-ting tools are of high speed steel and are removable for grindingand adjustment. The spindle is driven through gears and a tele-scopic shaft with universal tumbling joints at each end. If de-sired a two-cylinder air or steam motor can be furnished fordriving the machine. April, 1908 AMERICAN ENGINEER WD KAILROAD JOURNAL. 159. FIG. I. — APPLICATION Il ) MOTOR To 22-INCH LATHI- MOTOR DRIVEN ENGINE LATHES. The machine tool builders have all given more or!mii to the application of the individualmotor drive to their tools, especially sincethe advantages of the individual drive, mlder certain conditions, have become moreand more apparent. The accompanying il-lustrations show the standard methods ofapplying individual motors to The R. Machine Companys (Cincinnati, lathes. A typical application of a variable speedmotor to lathes, up to and including 22 , is shown in Fig. I. The headstockhas pads cast on the sides, which are planedto receive the motor bracket, or of any make can thus be attachedin a neat and substantial manner. A clutchpinion on the motor shaft drives a rawhidegi ar which runs loose on a i->4 in. pin, re-duced to in. in diameter where it passe,through a bracket cast on the motor hous-ing to which it is held by a nut on theinner side. On
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
