Abstract: A railway car control valve comprises a brake pipe port, an auxiliary reservoir port, a main piston configured to compare air pressures at the brake pipe port and the auxiliary reservoir port, and a one-way check valve positioned intermediate the brake pipe port and the auxiliary reservoir port. The one way check valve comprises a body having a bore extending from its first end to its second end, an elongated insert configured to reduce the rate of air flow through the body, and a sleeve received on the insert's outer surface. The insert is received in the body bore. One of the insert and the sleeve is configured to move between a first position and a second position that either allows air to flow or prevents air from flowing, respectively.

Abstract: A railway car control valve comprises a brake pipe port, an auxiliary reservoir port, a main piston, intermediate the brake pipe port and the auxiliary reservoir port, configured to compare an air pressure supplied at the brake pipe port with an air pressure supplied at the auxiliary reservoir port and a one-way check valve positioned intermediate the brake pipe port and the auxiliary reservoir port. The one way check valve comprises a body having a first end, a second end, and a bore extending from the first end to the second end, an elongated insert defining an outer surface, the insert configured to reduce the rate of air flow through the body, and sleeve received on the insert outer surface. The insert is received in the body bore.

Abstract: An empty-load system including a first housing having brake cylinder, control valve, equalization volume reservoir and pilot ports. The first housing also has a ratio means for controlling the connection between ports and has a piston responsive to a pilot pressure to operate the ratio means. The system also includes a second housing having a brake cylinder port and a pilot port connected, respectively, to the brake cylinder port and the pilot port of the first housing. The second housing also has a sensor means, having a sensor piston, for sensing the load of a railcar and has a sensor valve for connecting the brake cylinder port to the pilot port for a first position of the sensor piston.

Abstract: A hose support system for a rail car having a support which includes a flat strap having first and second ends and a tongue connected to the first end of the strap and extending along the strap towards the second end of the strap. A connector at one end of the strap is positioned in a car aperture and a connector at the other end of the strap is positioned in a hose aperture. A resilient element connects the loop at one end of the strap to its connector. A clasp is adjustably positioned on the strap between the ends of the strap and adjusts the length of the strap between the ends. The tongue extends through the clasp. At least one of the connectors may include a loop and a throat extending substantially tangential to the loop. Alternatively, one or more of the connectors may include a spiral. A bearing ring separates the connector and the strap.

Abstract: A truck mounted rail brake including at least a primary beam having a center section and a pair of end sections with guide end extensions. A brake head is removably mounted to the end sections by a pin. The pin is dimensioned to allow pivotal movement of the brake head about the pin. The pin is retained in the brake head by either a tab or another pin above and transverse to the first pin.

Abstract: An emergency vent valve including a piston responsive to the differential pressure between the brake pipe and a control volume to open a vent valve to vent the brake pipe to atmosphere and includes an exhaust valve responsive to the differential pressure between brake pipe and control volume to connect the control volume to atmosphere through a service check and when the vent valve is opened through a second blow-down choke of a lesser rate which limits the exhausting of the control chamber. A choke valve connected to the piston connects the blow-down choke in series with the service choke when the vent valve becomes fully open.

Abstract: A single sided control valve wherein the service portion is mounted to the front face of a pipe bracket adjacent to the right face and the emergency portion is mounted to the front face adjacent to the left face. The brake pipe, brake cylinder and at least one reservoir port are on the back face and the brake pipe port is adjacent to the left face behind the emergency portion. Mounting brackets each include a horizontal flange with apertures to receive the fasteners which mount the mounting brackets to the vehicle and the horizontal flange which extends from the pipe bracket substantially past the front face and the center of gravity of the control valve. A combined dirt collector and cut-off cock is connected to the brake pipe port adjacent to the left face of the pipe bracket and includes a handle to the left of the left face.

Abstract: A control valve is mounted to a pipe bracket which also includes a manual release valve and an emergency vent valve. The control valve operates with a single reservoir to perform service and emergency brake applications. A pair of interrelated pistons responsive to brake cylinder pressure, brake pipe pressure and control volume pressure operate a supply valve, a quick service valve end exhaust valve to maintain a fixed ratio of brake cylinder pressure to brake pipe pressure reduction. Quick service volume is continuously vented and appropriate valving is provided to allow plural sequential quick service operations. Structures provided to operate the piston stack so as to initially allow graduated brake release and subsequent direct brake release over the brake releasing range. An accelerated emergency release mechanism is also provided. The supply reservoir is only charged during the direct release mode.

Abstract: A brake system wherein the single actuator is freely mounted to a first brake beam so as to align its force application axis with the axis of a first force transmitting rod connected at its other end to a transfer lever on a second brake beam. A second force transmitting rod connects the transfer lever back to the first brake beam. The mounts for the actuator and the transfer lever are designed for use with brake beams of dual actuator brake systems.

Abstract: A control valve having, in a series with a first inlet valve of a quick brake volume, two different rates of flow restrictions operable as a function of the position of the piston. The first flow rate of one first restriction is insufficient to cause the piston to a braking position for applying a minimum service application for first range of piston positions which would generally be produced by the mechanical vibration. The second restriction has a greater flow and will accelerate the piston to a braking position for a second range of piston positions which will be produced by the reduction of the brake pipe pressure on one face of the piston. By providing two flow rates, the valve becomes insensitive to mechanically produced forces while maintaining the reaction time of the valve to fluidically produced reduction of brake pipe pressure.

Abstract: An empty-load device, having in a single housing, a sensing piston and a ratio piston interconnected by a push rod which senses load. A ratio valve, including a valving element and valve seat, is mounted on and travels with the ratio piston and is opened by the push rod. The ratio valve is connected to the ratio piston by a spring such that the push rod engages the ratio valve to open the ratio valve and position the ratio piston via the spring.

Abstract: A single sided valve wherein the service portion is mounted to the front face of a pipe bracket adjacent to the right face and the emergency portion is mounted to the front face adjacent to the left face. The brake pipe, brake cylinder and at least one reservoir port are on the back face and the brake pipe port is adjacent to the left face behind the emergency portion. Mounting brackets each include a horizontal flange with apertures to receive the fasteners which mount the mounting brackets to the vehicle and the horizontal flange which extends from the pipe bracket substantially past the front face and the center of gravity of the control valve. A combined dirt collector and cut-off cock is connected to the brake pipe port adjacent to the left face of the pipe bracket and includes a handle to the left of the left face.