. The science of railways . the figures. FromFig. 135 it will be seen that a small pipe li^ leadsfrom the receiver connection K to this valvemechanism, and from Figs. 133 and 134, that apipe S^ comes from the live steam passage in thesaddle and has a small port leading to the actu-ating valves as well as to the poppet valve live steam and receiver connections cometo opposite sides of a small piston valve M (), which is called the regulating valve andtravels across two ports leading to the slide valvebeneath it, as shown. lA Fi^joe Fic/J37> jFieceit/er. Ayiide. I a liye The re
. The science of railways . the figures. FromFig. 135 it will be seen that a small pipe li^ leadsfrom the receiver connection K to this valvemechanism, and from Figs. 133 and 134, that apipe S^ comes from the live steam passage in thesaddle and has a small port leading to the actu-ating valves as well as to the poppet valve live steam and receiver connections cometo opposite sides of a small piston valve M (), which is called the regulating valve andtravels across two ports leading to the slide valvebeneath it, as shown. lA Fi^joe Fic/J37> jFieceit/er. Ayiide. I a liye The remainder of this mechanism consists of abalanced poppet valve N, which, when open, ad-mits live steam from pipe aS^ through the inter-cepting valve to the low-pressure cjdinder instarting. This pop^Det valve jV has a projectingstem on the lower side and is opened and allowedto close by a rocker-arm or bell-crank L, itstwo positions being shown in Figs. 133 and 134,respectively. The operation of the apparatus is as follows:The normal position of the parts when the en-gine is working compound is shown in Fig. 133,in which position steam for the low-pressure 15 vol 158 218 ENGINEERS AND FIREMENS MANUAL. cylinder comes entirely from the high-pressureexhaust through the receiver. To start the train,the engine throttle is opened as usual. This per-mits steam to pass to the high-pressure side andalso through the pipe S^ (Figs. 183 and 136) tothe left side of piston valve M (Fig. 137) anddown through the adjacent port (as indicatedby arrows) to the slide valve chamber, t
Size: 3033px × 824px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1900
