Identifier: airbrakesuptodat00ludy (find matches)
Title: Air brakes, an up-to-date treatise on the Westinghouse air brake as designed for passenger and freight service and for electric cars
Year: 1918 (1910s)
Authors: Ludy, Llewellyn V., 1875- (from old catalog) American Technical Society
Subjects: Westinghouse air-brake
Publisher: Chicago, American technical society
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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Fig. 59. Tj-pe L Triple Valve, Showing By-Pass Piston Cap Courtesy of Westinphouse A ir Brake Company, Wilmerding, Pennsylvania for emergency application is imperative, in order to provide amaximum braking power when the shortest possible stop is required.New Features in V Type. The following new features areincorporated in the new Type L triple valve: (1) Quick recharge (of auxiliary reservoirs), making it possible to obtainfull braking power almost inunediately after a release has been made. (2) Quick service, by which a very quick serial service action of tlic brakesthroughout the train is obtained, similar to that in emergency applicationsbut less in degree. 78 AlK lU^VKKS (3) Oraduatt\l nhasc, which ponnits of ivutly or ontiroly ivloasinjj; thebrakes on the ontiro train at will. This porniits of tho bost uumIuhI of braking,
Text Appearing After Image:
namely, a heavy applit-ation at high s(ieed. gradually reductnl as the speedbecomes moderate, with just enough brake-cyhnder pressure left to completethe stop. AIR BRAKES 79 ^i) IJiqh ernerrfjcnci^.ylirul^r (/rtHHure, which greatly infrrea«efi the availablebrukirjK power over that obtainr^l with a fuU-servicf> nyjuction. An with thequiek-a/tion triple valve, the brake-pifx; air is vent^i^J into the brake cyhnder.The high ernergency-<;ylinder prf-sHure ib ma^le possible by using air from asupplementary resf^rvoir, a res^^rvoir about 2; times the capacity of the aux-iliary rewfrvoir in a^idition to that from the auxiliary rf^sf^noir. The usr; ofthe supplementary reservoir alw makes possible the grariuatxid-release feature, Iwo illu:~.tratioij-^ of tijc Type L triple vahe are given inFigs. 58 and o9. Fig. 58 is a side view showing the safety valve inI^Iaf-e. Fig. 59 is the opposite side of the valve showing the by-passpiston cap. V\^. 00 shows two vertical cross sections of the Ty

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