. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ing the slidevalve so as to connect ports c and c. Areduction of train-pipe pressure causes thepressure in chamber b to reduce below thatin chamber 6\ causing the piston B tomove to the extreme right, its slide valveC breaking all connections. A releaseof brakes, by admitting 5 or 8 pounds ofpressure of main reservoir pressure to thetrain pipe and to chamber b, will cause Pan Handle shops at Steubenville, Ohio, afterward employed by the Westinghousethe conductor and engineer respectively comp
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ing the slidevalve so as to connect ports c and c. Areduction of train-pipe pressure causes thepressure in chamber b to reduce below thatin chamber 6\ causing the piston B tomove to the extreme right, its slide valveC breaking all connections. A releaseof brakes, by admitting 5 or 8 pounds ofpressure of main reservoir pressure to thetrain pipe and to chamber b, will cause Pan Handle shops at Steubenville, Ohio, afterward employed by the Westinghousethe conductor and engineer respectively company and traveled in Europe and m of the first air-braked train. The paperwas handed to me by George H. Gore, for-merly of the Pan Handle, asking me at thesame time if I recognized the pictures. Ireplied that I did and that I would knowthem if I saw them in China. The articleaccompanying the pictures was written byF. M. Nellis, whom I knew when he wasan apprentice boy in the Dennison shopsand whom I last saw at Atlanta, Ga., in1892. at the Engineers speaking about this train that went. c IlV/.I AUTOMATIC RETAINING VALVE. the piston B to again assume the mid-position, as shown in Fig. i, the slide valveC connecting the exhaust port of the triplevalve c with port c\ Thus the pressureescaping from the exhaust port of the triplevalve will pass to the weighted valve /,allowing, say, all pressure over 15 poundsto escape to the atmosphere, that amountbeing held in the usual manner by theweighted valve /. Any number of applications and lightreleases may be thus made, holding in op-eration the automatic feature of the retain-ing valve /. However, should the admis-sion of main reservoir pressure to the trainpipe be heavier than S or 8 pounds, thespring would be compressed by the stemon piston B, and the parts would moveto the extreme left, thus giving a directflow for pressure from the exhaust portof the triple valve, through port c, cavityof sUde valve C and port c. Briefly
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
