(Case No. 6975)ABSTRACT OF THE DISCLOSUREA railway vehicle brake apparatus including a brakecontrol valve device having a service piston valve deviceoperative responsive to a reduction of pressure in the trainbrake pipe to connect fluid pressure from the auxiliary reser-voir to a brake cylinder device to provide a service brakeapplication, and a high pressure spool valve device operativeresponsive to said reductions of brake pipe pressure exceedinga certain chosen rate to connect fluid pressure from the emer-gency reservoir to the brake cylinder device in parallel withthe auxiliary reservoir pressure connected thereto from saidservice piston valve device to provide a higher emergency brakeapplication pressure, there being arranged a cut-off valvedevice between the high pressure spool valve device and brakecylinder device which interrupts the flow of emergency reservoirpressure thereto until the auxiliary reservoir pressure suppliedto the brake cylinder device is reduced to a predetermined leveland a one-way check valve between the service piston valvedevice and brake cylinder device to prevent the emergencyreservoir pressure from flowing to the auxiliary reservoir.
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