Treatise covering operation, defects and remedies of the locomotive, Westinghouse and New York air-brake, also questions and answers to first, second and third year's progressive examinations (1917)
MacDonald, J. R. [from old catalog] · [Chicago] The author · leaf 185
drip pipe at X is for the purposeof allowing any steam that may pass up around the stemof the main steam valve when the valve is closed or pastthe seat of the main steam valve when in open position topass out to the atmosphere and not build up a pressurebelow the piston, which would cause the… … Discha/yre Fig. 2. The ^-Inch Air Compressor (Diagrammatic View), Up Stroke WESTINGHOUSE AIR BRAKE 183 a small amount of steam to pass through, causing the pumpto make a stroke occasionally in order to keep the con-densation out of the pipes. There is also a small port in thespring casing to allow…
Locomotives · Westinghouse air-brake · New York air-brake
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