. Railway mechanical engineer . been developed by the ChambersburgEngineering Company, Chambersburg, Pa. A direct motor-driven double-end machine, equipped withtlie electrical control, is illustrated in Fig. 1. This lineof equipment is so designed that machines of different capa-cities may be operated end to end, as well as machines oflike capacity. Belt-driven machines may also be providedwith a mechanical pedal control, as illustrated in Fig. 3,instead of the electric control. However, this control isrecommended to be used only when proper electric currentis not available. Rapid Stroke Adjus
. Railway mechanical engineer . been developed by the ChambersburgEngineering Company, Chambersburg, Pa. A direct motor-driven double-end machine, equipped withtlie electrical control, is illustrated in Fig. 1. This lineof equipment is so designed that machines of different capa-cities may be operated end to end, as well as machines oflike capacity. Belt-driven machines may also be providedwith a mechanical pedal control, as illustrated in Fig. 3,instead of the electric control. However, this control isrecommended to be used only when proper electric currentis not available. Rapid Stroke Adjustment The stroke adjustment is made at the head end of themachine when the control head A, Fig. 2, is in the adjustingposition shown, at which time tlie electric circuit has beenautomatically opened, and the clutch disengaged. The strokeadjustment is then made by positioning around cap B, aheadless set-screw which is exposed. Cap B has graduations. eccentric shaft is a one-piece steel forging, accurately fin-ished, which rotates in large bronze bushings. The mainbearings and the sliding head are lubricated by sight-feedoil-cups, and oil-grooves provide for the efficient distributionof the oil. The machine-molded gears are made of semi-steel, thepinion being shrouded. Fractional ratios insure the alter-nate stressing of the gear teeth. When a machine is motor-driven, a cut steel gear is furnished on the motor guards may also be supplied. A one-piece safety cap*-stan provides for turning the eccentric shaft by hand, and Fig. 1—Double End Motor-Driven Punching and Shearing MachineArranged with Electrical Control which indicate the position at which the stroke will be endedwhen the set-screw has been brought to that 2 also shows the control head in the position it occupieswhen the machine is in operation. A momentary depressionof the push-button causes the engagement of the clutch, andthis member is auto
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
