A textbook on the locomotive and the air brake (1901)
International Correspondence Schools · Scranton, Pa., International textbook co · leaf 121
ses into B throughthe main valve C when the latter is raised by piston D movingupwards. Piston D is moved upwards by the steam that comesthrough port p when the auxiliary valve c is moved down 44 CAR HEATING. §13 (that is, opened) by the force of spring F, this valve c remainingopen as long as the… … valve and goes up port p and down port p into the spaceunderneath piston D. We now have boiler pressure acting on § 13 CAR HEATING. 45 main valve C and also on piston 7); the latter having twice thearea of C, it rises and forces C open against resistance of springif, thus letting steam pass into B…
Locomotives · Locomotive boilers · Railroad cars
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