. Locomotive engineering : a practical journal of railway motive power and rolling stock . tically as a simple engine; thesteam for the low-pressure side passinginto port C from the passage A. The re-ceiver at this time being without pressure,oflfers no resistance to the pressure inport C on the shoulder E of the reducingvalve L, shown at the left of the cut, pressure steam chest, as shown in Fig. 3,when working compound. When the engine is required to givemaximum draw-bar pull, steam is ad-mitted from a three-way cock in the cabto the piston of emergency valve H, hold-ing it open against the
. Locomotive engineering : a practical journal of railway motive power and rolling stock . tically as a simple engine; thesteam for the low-pressure side passinginto port C from the passage A. The re-ceiver at this time being without pressure,oflfers no resistance to the pressure inport C on the shoulder E of the reducingvalve L, shown at the left of the cut, pressure steam chest, as shown in Fig. 3,when working compound. When the engine is required to givemaximum draw-bar pull, steam is ad-mitted from a three-way cock in the cabto the piston of emergency valve H, hold-ing it open against the tension of itsspring. Opening this valve exhausts thecavity / where the pressure is equalizedwith that of the receiver through holes inthe right of valve I. This valve being thenunbalanced, is forced to the right, andwith it the reducing valve L, which takessteam by shoulder E. This position ofthe valves V and H allows the high-pres-sure cylinder to exhaust directly into themain exhaust passage through the emer-gency exhaust, as shown in Fig. 4. whenworking simple. The reducing valve L. Vulcabeston Air Brake Pump Packing Rings,Gaskets, etc. Fire-Felt Train Pipe Covering, Mill Board, Cement Felting,Asbestos Roofing, Liquid Paints, ... and.~ All AsbestosManufactures. Descriptive Price List Free by MaiL H^WJohnsMfgCo. 100 William St., New Chicago. Philadelphia. July, 1898. LOCOMOTIVE ENGINEERING. 363 The MASONReducing Valve. FOR STEAM AND AIR Has features which make it superiorto all others on the market. !T IS THE STANDARD ON C^C^ 90% ^r»<* of the American Railways. Adopted by the Qovernment Railways ofPrance and Belg^lum and the Leading English . SENT O/V TRIAL. . being open, the low-pressure steam chestreceives live steam from port C at a re-duced pressure. Fig. 2 shows the overpass valvesused on the low-pressure cylinders ofthese engines, to admit air from one steamport to the other when running shut valves are placed in the cylinder cast-in
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Keywords: ., bookcentury1800, bookdecade1890, bookidlocomotiveen, bookyear1892
