. Brake tests; a report of a series of road tests of brakes on passenger equipment cars made at Absecon, New Jersey, in 1913 . .<^./P/?. Altoona. Pa. a=». Fig. 53. BRAKE CYLINDER PRESSURE, PM EQUIPMENT. Maximum emergency cylinder pressure is obtained in about 8 seconds on the entire train. The blow down action of the high-speed reducing valve is well illustrated. 89 UC Equipment, PM Features Only. 191. Fig. 54 shows that when this equipment is arranged togive the equivalent of the operative features of the PM equipmentonly, the results obtained are substantially equivalent to th
. Brake tests; a report of a series of road tests of brakes on passenger equipment cars made at Absecon, New Jersey, in 1913 . .<^./P/?. Altoona. Pa. a=». Fig. 53. BRAKE CYLINDER PRESSURE, PM EQUIPMENT. Maximum emergency cylinder pressure is obtained in about 8 seconds on the entire train. The blow down action of the high-speed reducing valve is well illustrated. 89 UC Equipment, PM Features Only. 191. Fig. 54 shows that when this equipment is arranged togive the equivalent of the operative features of the PM equipmentonly, the results obtained are substantially equivalent to those justdescribed for Fig. 53. 192. This is further illustrated by the comparative stoppingdistances (Fig. 93), which are almost identical for the PM and the UCequipment having PM features only. UC Pneumatic Equipment. 193. Fig. 55 shows characteristic brake cylinder pressure cardsobtained with this equipment, emergency application. The brakecylinder pressure rises almost instantly to its maximum value andis held without blow-down throughout the stop thus utilizing theair pressure available on each car to its ftillest extent and results to be expected
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