. Revised and enlarged ed. of the science of railways . ^ with those equipped with the a rapid reduction of the train line pressure TO rfffi/N P/P£ £/i i, f££i> ro/frj2 EHH/Il/JT PO/t7 5 p/sro// & ^T£/f 6 SIID£ VAtV£■ST£M 9 - •s/^wo 10 £/rIZ c^sr/( y/ny£ >5/Vf//v<;13 c^/fcA r/!£.19- sr/f/f/N£/itS £/-r£/iC£f/cr //sroft 0(//C/f /IcT/OAf Tr/PLE V/7Ll/£. is made, as in tlie case of the plain triple valveunder like circumstances, the triple valve piston(5) compresses the graduating spring (9) and pullsthe slide valve (6) into a position farther than THE AIR BRAKE. 34
. Revised and enlarged ed. of the science of railways . ^ with those equipped with the a rapid reduction of the train line pressure TO rfffi/N P/P£ £/i i, f££i> ro/frj2 EHH/Il/JT PO/t7 5 p/sro// & ^T£/f 6 SIID£ VAtV£■ST£M 9 - •s/^wo 10 £/rIZ c^sr/( y/ny£ >5/Vf//v<;13 c^/fcA r/!£.19- sr/f/f/N£/itS £/-r£/iC£f/cr //sroft 0(//C/f /IcT/OAf Tr/PLE V/7Ll/£. is made, as in tlie case of the plain triple valveunder like circumstances, the triple valve piston(5) compresses the graduating spring (9) and pullsthe slide valve (6) into a position farther than THE AIR BRAKE. 345 that of ordinary service. Thus the graduatingport {d) in the slide valve is carried past the cyl-inder port (a) and registers with port e, allowingauxiliary reservoir pressure to pass to the top ofthe emergency valve piston (^15), which shovesdown the emergency valve (10) and allows thetrain line pressure beneath to flow through tothe brake cylinder.* At the instant port d comesopposite port e, the small port h in the slide valveis in registe
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Keywords: ., bookcentury1800, bookdecade1800, bookidsciencerailw, bookyear1800
