. Railway mechanical engineer . is a hinged bar connected at the outer end to the bar Ijy means of a bell crank and link. The lockingof the gear is effected by a spring which, acting through themedium of the bell crank, causes the crosshead to be tightlygripped between the guide bar above and the hinged barbelow. The clamping device is so designed that the pres-sure gripping the crosshead is about eight times the work-ing capacity of the crosshead. When the reverse lever ismoved, the clamp is released by means of a small pressurecylinder located in the rear of the spring cage. Thro
. Railway mechanical engineer . is a hinged bar connected at the outer end to the bar Ijy means of a bell crank and link. The lockingof the gear is effected by a spring which, acting through themedium of the bell crank, causes the crosshead to be tightlygripped between the guide bar above and the hinged barbelow. The clamping device is so designed that the pres-sure gripping the crosshead is about eight times the work-ing capacity of the crosshead. When the reverse lever ismoved, the clamp is released by means of a small pressurecylinder located in the rear of the spring cage. Throughan automatic shifting valve pressure is admitted to thiscylinder whenever air is admitted to either end of the operat-ing cylinder. . the completion of the desired motion ofthe [jiston in the cylinder, the crosshead is again clampedin position by the release of the air pressure acting againstthe clamping spring. The locomotives are fitted with the Woodard engine truckand the Cole trailing truck, under a Commonwealth Steel.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
