. Air brakes, an up-to-date treatise on the Westinghouse air brake as designed for passenger and freight service and for electric cars . Fig. 31. Westinghouse C-6Feed Valve 48 AIR BRAKES operated by main-reservoir air entering through passage a on oneside or by the pressure of the piston spring 9 on its opposite regulating portion consists of a brass diaphragm 17, onone side of which there is the diaphragm spindle 18, held againstthe diaphragm by the regulating spring 19, and on the other sidea regulating valve 12, held against the diaphragm or its seat, asthe case may be, by spring 1
. Air brakes, an up-to-date treatise on the Westinghouse air brake as designed for passenger and freight service and for electric cars . Fig. 31. Westinghouse C-6Feed Valve 48 AIR BRAKES operated by main-reservoir air entering through passage a on oneside or by the pressure of the piston spring 9 on its opposite regulating portion consists of a brass diaphragm 17, onone side of which there is the diaphragm spindle 18, held againstthe diaphragm by the regulating spring 19, and on the other sidea regulating valve 12, held against the diaphragm or its seat, asthe case may be, by spring 13, Chamber L, on the face of thediaphragm, is open to the brake pipe through passage e and ig. 32. Section of Westinghouse ♦C-6Feed Valve through Spring Box Fig. 33. Section of Westinghouse C-6Feed Valve through Slide Valve The feed valve is adjusted by screwing regulating nut W in or out,thus increasing or decreasing the pressure exerted by the springon the diaphragm. This feed valve, when applied to the G-6 brake valve, isusually adjusted for 70 pounds brake-pipe pressure. Supposespring 19 to be compressed so as to exert a force equivalent to a70-pound air pressure on the opposite side of the diaphragm. Then,as long as the air pressure in the brake pipe and chamber L is lessthan 70 pounds, the spring holds the diaphragm over as far to the AIR BRAKES 49 left as possible, as shown in Fig. 35. This holds the regulatingvalve ^;^ off its seat, thus opening port K, which permits air toflow through port K and from passage // to chamber G at the backof the supply piston 6. Consequently, as long as the air pressurein G, h, e, and d is less than 70 pounds, the higher main-reservo
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Keywords: ., bo, bookcentury1900, bookdecade1910, bookidairbrakesuptodat00ludy
