. American engineer and railroad journal . s of the WellmauSeaver-Morgan Company, Cleveland, Ohio. In this shop alsonot a belt is to be seen, even the smallest tools, such as powerhack saws and the like, being individually driven by other shops using this system exclusively have beenmentioned in these columns. The effect of this rapidly increasing use of the motor-drivehas been to make severe demands upon the machine tool build-ers to adapt their tools to the requirements of the new this interesting work the tsetts Machine Company, Wil-mington, Del., have been pioneers. Th
. American engineer and railroad journal . s of the WellmauSeaver-Morgan Company, Cleveland, Ohio. In this shop alsonot a belt is to be seen, even the smallest tools, such as powerhack saws and the like, being individually driven by other shops using this system exclusively have beenmentioned in these columns. The effect of this rapidly increasing use of the motor-drivehas been to make severe demands upon the machine tool build-ers to adapt their tools to the requirements of the new this interesting work the tsetts Machine Company, Wil-mington, Del., have been pioneers. They have anticipated thetrend of progress in this direction and have done very impor-tant work in the development of practical motor-drive applica-tions. Fig. 2 illustrates a neat and serviceable drive whichthey have applied to one of their large crank-driven motor has been conveniently mounted upon the side of(he frame at the rear and drives direct through gearing, lliere Mat, 1904. AMERICAN ENGINEER AND RAILKOAD JOURNAL. 191. FIO. 1. —A MODEL MOTOB-DMVEH MAiimxt SHOP.—WOBKS OF THE BULLOCK ELECTRIC MANUFACTURING COMPANY. being Mine runs of gearing for changes of speed. In this waythe motor requires practically no additional room and is outof the way of the operator. The motor used is a General Elec-tric Company direct-current motor, operating at variable speedsby field control, In Fig. 5 is illustrated another Betts tool arranged for motor-driving. This is the Betts standard horizontal boring machine,and in arranging for the motor-drive the cone pulleys werenlained. An interesting method of overcoming the difficultyof tightening the belt of such short length is to be seen ontliis tool; the motor is mounted upon a rocking bracket overthe headstock, so that the motor and all may he tipped back totighten the belt. This motor is also a General Electric direct-current motor, similarly arranged for variable speeds, anddrives the upper cone pulley direct through a gea
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
