Abstract: A terminating potting backshell for connecting a wire or wire harness to a mating receptacle of an electrical/electronic device which is in the form of a generally tubular electrically conductive body and having threads encircling a first end for attaching the backshell to a mating receptacle on the electrical/electronic device and also having a groove spaced from a second end over which a conductive tubular braided shield can be disposed. The groove adapted to receive a clamp for holding the tubular braided shield onto the second end of the backshell.

Abstract: A terminating potting backshell for connecting a wire or wire harness to a mating receptacle of an electrical/electronic device which is in the form of a generally tubular electrically conductive body and having threads encircling a first end for attaching the backshell to a mating receptacle on the electrical/electronic device and also having a groove spaced from a second end over which a conductive tubular braided shield can be disposed. The groove adapted to receive a clamp for holding the tubular braided shield onto the second end of the backshell.

Abstract: Method and apparatus for limiting brake cylinder pressure in emergency braking of a locomotive consist connected to a train of railway cars. The apparatus includes a manifold device connected to a reservoir of pressurized fluid for operating pneumatic brakes of the locomotive consist. A first magnet valve is connected to the manifold device for supplying fluid pressure from such device to a brake actuating pipe when an operating coil of the first magnet valve is energized. A second magnet valve having an operating coil is connected to the manifold device for supplying fluid pressure from the reservoir to an adjustable pressure regulator connecting an independent application and release pipe to the manifold device. A relay is connected to receive an emergency brake signal and conduct emergency power to the operating coils of the first and second valves whereby fluid pressure is supplied to the brake actuating pipe and to the adjustable pressure regulator from the manifold device.

Abstract: An electrically controlled railway locomotive throttle controller including a power source connected to a central processing unit disposed on such locomotive. An encoder device is disposed on such locomotive for providing at least one electrical signal to such central processing unit. This at least one electrical signal being at least one of a signal indicative of a throttle position, a signal indicative of dynamic braking and a signal indicative of a reverser. A digital control device is disposed on such locomotive and is connected to receive a signal from such central processing unit to provide a digital control signal that controls the voltage being applied to a trainline. An analog control device is also disposed on such locomotive and is connected to receive a signal from such central processing unit to provide an analog control signal that controls a dynamic brake reference voltage being applied to such trainline.

Abstract: Apparatus and method are presented for a solid state relay module suitable for accepting low-level digital signals from a digital computer, and for providing on/off control of heavy electrical loads. The relay and its methods are intended for electrically hostile environments such that the relay may be exposed to spurious high voltages either on its input or on its load circuit. This relay and its methods are particularly intended for use in a locomotive throttle controller. The relay accepts low-level digital signals from a central processor computer in the throttle controller, and provide high-power digital signals to the trainlines which control the engine of the locomotive.

Abstract: A microprocessor based, electro-pneumatic brake control system for a locomotive including electro-pneumatic valves operated by a microprocessor for controlling the locomotive brake pressure in parallel with a pneumatic back-up control valve that includes a quick release valve to bail off the locomotive brake. A brake assurance circuit is provided to apply the locomotive brakes through the electro-pneumatic valves in bypass of the microprocessor when a loss of electrical power at the microprocessor occurs.