File:Air brakes, an up-to-date treatise on the Westinghouse air brake as designed for passenger and freight service and for electric cars (1918) (14763919435).jpg

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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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14 inches in diameter and the cylinder pressureis 50 pounds, the pressure delivered at pin A is about 7650pounds, while that on each wheel is 10,200 pounds. These valuesvary for different locomotives. The stroke of the piston is regulatedby the adjustment mechanism at B. The action of the cam-driver brake is shown in Fig. 86. Whenair is admitted to the brake cylinder, the piston is forced downward.This action pushes down the crosshead cams, w^hich force the brakeshoes against the drivers. The piston travel is controlled by adjust-ing the cam nut on each cam. Locomotive Truck Brakes. In certain types of locomotives, aconsiderable proportion of the weight of the locomotive is carriedon the truck. It follows, that in order to develop the full brakingpower of the locomotive, a well-designed truck brake should beprovided. The type of brake shown in Fig. 87 is now quite com-mon. It is fitted with an automatic slack-adjuster, but this featureis not so important here as on the car equipment.
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AIR BRAKES PART II MODERN BRAKE EQUIPMENT FUNDAMENTAL TYPES High=Speed Brake Equipment. The high-speed brake equip-ment, Fig. 88, is a modification of the quick-action brake and can beused in passenger service. Tlie parts not found on the onUnaryequipment are as follows: Type E safety valve, high-speedreducing valve, reversing cock, feed-valve bracket, and an additionalfeed valve. Action of Reversing Cock. The locomotive equipment may bechanged from the quick-action to the high-speed brake by simplyturning the reversing-cock handle. When this handle is in the ))osi-tion opposite to that shown in Fig. 88, the 7()-pound feed valve is inservice, so that the locomotive is ready to operate the ordinaryquick-action brake; when the brake-valve handle is in running posi-tion, 70 pounds pressure is carried in the brake pipe, and the com-pressor will slow^ down when main-reservoir pressure reaches 90pounds. If, however, the brake-valve handle is in lap, service, oremergency-application position

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Ludy, Llewellyn V., 1875- [from old catalog];

American Technical Society
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28 July 2014


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current02:02, 8 November 2015Thumbnail for version as of 02:02, 8 November 20153,520 × 2,322 (2.26 MB)SteinsplitterBot (talk | contribs)Bot: Image rotated by 90°
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