. American engineer and railroad journal . the controller are hereassisted by the use of the usual back gear upon the lathe. BELTEP DRIVE UPON AN IDEAL —SPRINGFIELD MACHINE TOOL COMPANY. able are supplemented by the usual back-gear at-tachment, making thus six spindle speeds avail-able for every motor speed. The lathe illustrated in the engraving aboveis the motor-drive adaptation of the Ideal lathe,a number of which have been furnished to theUnited States Navy Department by the SpringfieldMachine Tool Company. Springfield, Ohio. Thisis the belted or flexible connection
. American engineer and railroad journal . the controller are hereassisted by the use of the usual back gear upon the lathe. BELTEP DRIVE UPON AN IDEAL —SPRINGFIELD MACHINE TOOL COMPANY. able are supplemented by the usual back-gear at-tachment, making thus six spindle speeds avail-able for every motor speed. The lathe illustrated in the engraving aboveis the motor-drive adaptation of the Ideal lathe,a number of which have been furnished to theUnited States Navy Department by the SpringfieldMachine Tool Company. Springfield, Ohio. Thisis the belted or flexible connection type of drivefor use with constant-speed motors, which thiscompany has advocated, and it has proven verysatisfactory. The motor is not reversible, re-versals being accomplished, as well as startingand stopping, by the clutches on the countershaftupon the standard. This arrangement, of course,necessitates a tight belt on account of the closecenters of pulleys. The motor shown upon thislathe Is a Storey direct-current DIRECT CEARED DRIVE UPON A .TONMULTIPLE-VOLTAOK MOTOE.—BULLOCK CEARED DRIVE UPON A TUBBET LATHE. GISHOLT MACHINE COMPANY. MULTIPLE-VOLT AGE MOTOB.—BULLOCK ELECTBIO MANUTAOTUKINGCOMPANY. The motor is supportedby a convenient cast-iron bracket at the rearof the head. Some interesting lathedrives are shown in theupper engraving onpage 195, which repre-sents a view in the toolroom at the BullockElectric ManufacturingCompanys works. Thedrives shown are caseswhere multiple-voltagemotors have beenmounted upon stand-ards above the latheheadstocks and drivedirect to the spindles bygearing. In all thesecases the motors vari-ES & LAMSON FLAT TURRET LATHE. able Speeds are supple- ELECTBiOAL MANUFACTUBiNO COMPANY. mented by the lathe back-
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
