. American engineer and railroad journal . EtEAB VIEW OF DRIVING WHEEL LATHE,\ i I \i HMENT. ing from finished to new work. The driver dogs are attachedto the face plates and therefore it is only necessary that thebolts and clamps be moved. In many instances it has been[ound possible to drive without the us< of the clamps andbolts. The tool rests arc of a new design, arranged to reai bforward to the minimum diameter of the work. The base isarranged to swivel as usual. The rocker shaft is arranged at KILES 90 INCH DRIVING WHEEL LATHE—PERE MARQUETTE RAILROAD. CHANGES LN DRILLING MACHINE DESIG
. American engineer and railroad journal . EtEAB VIEW OF DRIVING WHEEL LATHE,\ i I \i HMENT. ing from finished to new work. The driver dogs are attachedto the face plates and therefore it is only necessary that thebolts and clamps be moved. In many instances it has been[ound possible to drive without the us< of the clamps andbolts. The tool rests arc of a new design, arranged to reai bforward to the minimum diameter of the work. The base isarranged to swivel as usual. The rocker shaft is arranged at KILES 90 INCH DRIVING WHEEL LATHE—PERE MARQUETTE RAILROAD. CHANGES LN DRILLING MACHINE DESIGN. Less than two years ago a certain railroad changed severalupright drills, which were giving satisfactory results usingcarbon steel drills, from belt to motor drives. At that timehigh-speed drills were in an experimental stage, and in orderto provide for using them, in event of their proving satis-factory, the motors selected were at least 50 per cent, largerthan required with the use of carbon steel drills, the spindlespeeds were inc
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
