. Air brakes, an up-to-date treatise on the Westinghouse air brake as designed for passenger and freight service and for electric cars . Fig. 11. Diagram of Westinghouse 8 J/^-Inch Cross-Compound Compressor, Showing High-Pressure Steam (Low-Pressure Air) Piston on the Up-Stroke located on the top head of the high-pressure steam cylinder and isvery similar to that of the 9J-inch pump already described. and 12 show diagrammatically a cross section through the pump,Fig. 11 showing the parts during an up-stroke of the high-pressure AIR BRAKES 23 steam side, and Fig. 12 during a down-stroke
. Air brakes, an up-to-date treatise on the Westinghouse air brake as designed for passenger and freight service and for electric cars . Fig. 11. Diagram of Westinghouse 8 J/^-Inch Cross-Compound Compressor, Showing High-Pressure Steam (Low-Pressure Air) Piston on the Up-Stroke located on the top head of the high-pressure steam cylinder and isvery similar to that of the 9J-inch pump already described. and 12 show diagrammatically a cross section through the pump,Fig. 11 showing the parts during an up-stroke of the high-pressure AIR BRAKES 23 steam side, and Fig. 12 during a down-stroke of the high-pressuresteam side. The liigh-pressure steam piston is shown on the rightand the h)w pressure on the left. The high-pressure steam piston,with its hollow rod, contains the reversing-valve rod and operates m I. Fig. 12. Diagram of Westinghouse 8i-Inch Cross-Compound Compressor, Sliowiug High-Pressure Steam (Low-Pressure Air) Piston on the Down Stroke the reversing valve in the same manner as that of the 9J-inch valve operates the main valve in the same manner as thatdescribed in the case of the 9J-inch pump. The main slide valvecontrols the steam admission to, and the exhaust from, both the 24 AIR BRAKES high- and the low-pressure steam cylinders. It is provided withan exhaust cavity and, in addition, has four steam ports in its two outer and one of the intermediate ports communicate withcored passages extending longitudinally in the valve, which serve tomake the connection between the high- and the low-pressure cylindersduring the expansion of steam from one to the other. The otherport controls the admission of steam to the high-pressure cylinder. The valve seat has five ports. Of these, the two outside,shown in Figs. 11 and 12, lead to the upper and to the lower endsof t
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Keywords: ., bo, bookcentury1900, bookdecade1910, bookidairbrakesuptodat00ludy
