. Air brakes, an up-to-date treatise on the Westinghouse air brake as designed for passenger and freight service and for electric cars . ried. AIR BRAKES 159 Beyond this point, whatever small amount of pressure may remainin the service brake cylinder is released entirely and the emergencyand service reservoirs, as well as the pressure chamber, are re-chargedfrom the brake pipe as described in connection with Fig. 128. (f) Direct Release and Charging Position. Up to this point,the direct- and graduated-relcase cap lias been assumed to be in theposition for graduated release. Fig. 129 correspond
. Air brakes, an up-to-date treatise on the Westinghouse air brake as designed for passenger and freight service and for electric cars . ried. AIR BRAKES 159 Beyond this point, whatever small amount of pressure may remainin the service brake cylinder is released entirely and the emergencyand service reservoirs, as well as the pressure chamber, are re-chargedfrom the brake pipe as described in connection with Fig. 128. (f) Direct Release and Charging Position. Up to this point,the direct- and graduated-relcase cap lias been assumed to be in theposition for graduated release. Fig. 129 corresponds to Fig. 127,except that the direct- and graduated-release cap is adjusted fordirect release. It will be noted that there is now no connection fromthe emergency reservoir to the pressure chamber or chamber the pressure chamber is being re-charged only by air Ifel ease i^rad SpringSpring ^^ Equalizing -^ Release Check, Vji ve Egualizing Qrad Sen Res. Equohzing^^^fusion 5er. Res CharginqValve Equalizing. Orad Valve Reduction Limit wq Chamber E^. Equalizing^ Slide Valve Release ^\Grad Valve r—- EqualizingPiston Slop. \brake Ripe EguolizingSfopSpring \ ^^^ry-g^ ■ ~ Position for Direct Release SerCgl f Em erg CylEm&r^.CijlEyf. Emery. Slide , Fig. 129. Direct Release, Charging Pressure Chamber Only, for Westinghouse 3-W Control Valve from the brake pipe going through feed groove i to chamber E, andthence by way of the equalizing slide valve to the pressure pressure in chamber E cannot, therefore, increase above that inchamber 5, and the release piston, graduating valve, and slide valveremain in the position shown in Fig. 129. With the direct- and graduated-release cap adjusted for directrelease, it will be noted from Fig. 129 that the application chamberand chamber C are open through the release slide valve to a portconnecting through the direct- and graduated-release cap to theapplication-chamber exhaust and atmosphere
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Keywords: ., bo, bookcentury1900, bookdecade1910, bookidairbrakesuptodat00ludy
