. A textbook on the locomotive and the air brake . to the auxiliary reservoir. §15 THE NEW YORK AIR BRAKE. 29 In the freight equipment,pipe h, Fig. 11, connects thetriple valve 18 with thebi-ake C3linder, while inthe passenger equipment,the triple is attacheddirectly to the the brake is releasedin a freight equipment, airfrom the brake cylinderflows through pipe 6 andout through the triple ex-haust to the atmosphere. In the passenger equip-ment. Fig. 7, the piston rodis fastened to the crosshead10, and the brake levers,also connected to the cross-head 10, are controlled bythe cyl
. A textbook on the locomotive and the air brake . to the auxiliary reservoir. §15 THE NEW YORK AIR BRAKE. 29 In the freight equipment,pipe h, Fig. 11, connects thetriple valve 18 with thebi-ake C3linder, while inthe passenger equipment,the triple is attacheddirectly to the the brake is releasedin a freight equipment, airfrom the brake cylinderflows through pipe 6 andout through the triple ex-haust to the atmosphere. In the passenger equip-ment. Fig. 7, the piston rodis fastened to the crosshead10, and the brake levers,also connected to the cross-head 10, are controlled bythe cylinder piston, thelevers being moved everytime the piston moves. Inthe freight e q u i j) m e n t,Fig. 11, a push rod is at-tached to one end of thepiston in the brake cylin-der, the outer end (notshown in the figure) beingconnected to the brakelevers. When the hand-brakes are applied, thepush rod may be drawn outwithout moving the the air brake is ap-plied, piston 3 is forcedout, carrying the push rodwith it. There are practically no. 30 THE NEW YORK AIR BRAKE. §15 points of difference in the freight and passenger equipmentsother than those already described, and a description of theparts in the one will apply equally to those of the other. Thevarious parts of the triple valve have already been describedand its mode of working explained. 54. The auxiliary reservoir 10, Fig. 11, is a storagereservoir. The air stored there is for use in the cylinder 2,and its use is confined entirely to the car on which it is placed. The release valve 17, or bleed cock, as it is sometimescalled, reduces the auxiliary-reservoir pressure when opened;hence, if the brake on any particular car should stick, it can bereleased by opening the bleed cock of the auxiliary on that caruntil air begins to exhaust from the triple valve, when thebleed cock should immediately be closed. Bleeding theauxiliary reservoir reduces the pressure of the air within itbelow that in the train pipe; this force
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