. Revised and enlarged ed. of the science of railways . WiTH f££P^ y/fU^E. /irr/lCHMEMT. beneath it—the train line. The stem of this pis-ton does all the braking in service, and the open-ing it forms to discharge the train line pressureto the atmosphere is so small as to preclude thepossibility of setting the brakes in quick position just described should be alwaysused, except in the case of actual emergencies. 352 RA JLIV. \ ) /•: U J 7PM EXT. JS [b) Emergency or direct applicatio7i positionlivings the train line wide open to the atmos-phere directly through the rotary valve. When,
. Revised and enlarged ed. of the science of railways . WiTH f££P^ y/fU^E. /irr/lCHMEMT. beneath it—the train line. The stem of this pis-ton does all the braking in service, and the open-ing it forms to discharge the train line pressureto the atmosphere is so small as to preclude thepossibility of setting the brakes in quick position just described should be alwaysused, except in the case of actual emergencies. 352 RA JLIV. \ ) /•: U J 7PM EXT. JS [b) Emergency or direct applicatio7i positionlivings the train line wide open to the atmos-phere directly through the rotary valve. When, hy some defect in the engineers valve,service application position does not apply thebrakes, position 5 may l)e resorted to; then thehandle should be gradually moved toward theposition so as not to set any quick action triplevalves that are in the train in emergency; butAvhen an actual emergency arises, position 5should be fully used and the handle left there,no matter where it had been previously. g^.^ f The Pump Governor a device by which the
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Keywords: ., bookcentury1800, bookdecade1800, bookidsciencerailw, bookyear1800
