Abstract: A manually operable pneumatic emergency brake valve and electric switch including a valve body having an inlet port and an outlet port, an internal valve assembly normally seated by the biasing force of a helical spring, a pair of pivotal levers for operating a movable valve stem to unseat said internal valve assembly, and said movable stem including a cam surface for actuating the electric switch to signify an emergency brake application.

Abstract: An inlet valve assembly for an air compressor and/or compressor-exhauster having a plug member disposed in a cylinder head. A buffer plate screwed onto the lower end of a multi-threaded stud. A spring plate disposed on top of the buffer plate and a guide ring located between the spring plate and a valve plate. An inlet valve seat disposed above the valve plate and a lockout screwed onto an intermediate threaded portion of the multi-threaded stud. An inlet valve unloader slidably mounted on guide bushing and a lockout screwed onto the upper end of the multi-threaded stud. An unloader return spring caged between the inlet valve spring and the inlet valve unloader. A plurality of radially extending tab portions led along the peripheral edge of the buffer plate for preventing parts of the inlet valve from falling into the compressor chamber when the multi-threaded stud breaks.

Abstract: This invention relates to a piston arrangement for minimizing water blow-by in a cylinder bore, comprising a set of metallic compression and oil rings, and a resin-filled O-ring for reducing water blow-by in the cylinder bore until the set of metallic compression and oil rings are properly seated in the cylinder bore.

Abstract: A reusable magnetic masking member for keeping a surface area of a metal object from being painted during a painting operation. The magnetic masking member includes a flexible magnetic sheet of material which is magnetically attached to the surface area of the metal object and includes an exterior vinyl film backing which may be cleaned of excessive paint after a number of reuses and repeated paintings.

Abstract: A universally adjustable lightweight pistol and rifle rest having a tapered metal rod member and a sharped foot engaging member for affixation to the ground and having a movable two-point non-metallic gun supporting member for holding either the pistol or the rifle and being vertically positioned upwardly and downwardly along the length of the metal rod member and being quickly and easily angularly turned and elevationally moved to readily sight-in the rifle or pistol.

Abstract: A mechanism for the attachment of a speed sensor to a vehicle comprising a rotary body for attachment to an end of a wheel axle such that the rotary body rotates with the wheel axle, the rotary body having an outer peripheral surface, the outer peripheral surface having a gear wheel with teeth; a sensor mounting body within which the rotary body rotates by means of a bearing therebetween; a speed sensor attached to the sensor mounting body and aligned opposite to the gear wheel with teeth of the rotary body, the bearing maintaining a predetermined gap between the speed sensor and the gear wheel with teeth, the teeth providing the change in magnetic field sensed by the speed sensor when the rotary body is rotating with the wheel axle so that the speed sensor generates a signal corresponding to the rotational speed of the wheel axle; and a connection link through which the sensor mounting body is connected to a frame of the vehicle.

Abstract: An H-5 relay air valve emulating circuit for use in an electropneumatic railway brake control equipment including an operational amplifier comparator and a solenoid relay. The operational amplifier comparator includes a positive and a negative input and an output. The positive input is connected to an automatic brake cylinder request terminal, while the negative input is connected to a reference signal terminal. The output of the operational amplifier comparator is connected to the electrical coil of the solenoid relay which has a movable heel contact as well as a front and a back contact. The front contact is connected to an independent brake cylinder request terminal, while the back contact is connected to a zero reference terminal. The movable heel contact of the solenoid relay is connected to an independent contact point of a J-relay emulating circuit which is conditioned to either produce 160% of the simulated control pressure signal or to produce 100% of the simulated control pressure signal.

Abstract: An application and release magnet valve including an electropneumatic pilot valve portion for controlling a main air valve portion for supplying, maintaining, and releasing air pressure in the brake cylinders on a railway vehicle. The electropneumatic pilot valve portion includes an application solenoid which opens a first diaphragm actuated ball check valve in the main air valve portion to supply air from a supply port to a delivery port and includes a release solenoid which opens a second diaphragm actuated ball check valve to vent air from the delivery port to an exhaust port.

Abstract: A vehicle-in-spin speed processing system for multiple wheel axle units of a self-powered railway vehicle in which a reasonably accurate vehicle speed reference signal is produced as the wheel axle units are experiencing wheel spin during acceleration of the self-powered railway vehicle so that a minimum amount of error occurs in the output data of speedometers, odometers, and event recorders.

Abstract: A tamper-resistant independent brake valve device for use in a brake equipment on railway locomotives including a main body casing carrying a movable handle, a rotatable cam, a pivotal cam dog and an exhaust and supply valve assembly, a spring housing attached to the main body casing by a plurality of one-way screws, a break-away adjusting screw for setting the maximum brake cylinder pressure on the railway locomotive, the pivotal cam dog including an enlarged head portion to preclude the insertion of a prying tool, and the pivotal cam dog having cam engaging roller which is rotated on a round head roller pin.

Abstract: An electronic sanding control system for enhancing the frictional adhesion existing between the track rail and the wheels of a railway vehicle by functionally controlling the energization and deenergization of a sanding magnet valve with a plurality of OR and AND logic gates and a sand control latch circuit.

Abstract: A desiccant cartridge for use in a compressed air system comprising, a perforated stainless steel casing, a polyester felt support liner disposed against the inner surfaces of the perforated stainless steel casing, a pelletized moisture-absorbing material situated within the polyester felt support liner, and a pair of rubber cup-shaped end caps molded to the ends of perforated stainless steel case so that moisture vapor is extracted from compressed air passing radially the desiccant cartridge.

Abstract: An apparatus for initiating and latching a bail-off request for depleting the automatic brake pressure in the brake cylinders of a locomotive consist including a cab control unit having an automatic brake handle and an independent brake handle. A central processing unit receives a first input signal from the cab control unit which is indicative of the number of locomotives in the consist and receives a second input signal from the cab control unit which signifies a bail-off request. A display screen receives input signals from the central processing unit for exhibiting either a setup screen or a normal running screen in the locomotive. An electropneumatic unit receives an input signal from the central processing unit for initiating the bail-off of the automatic brakes on the locomotive consist when the independent brake handle is placed in a bail-off position.

Abstract: A high speed frog including a ductile iron main pan casting having an integral straight approach runner, an integral straight exit runner, and an integral exit turnout runner, a movable runner having a pair of guide rails, an electric solenoid for rotating the movable runner so that one of said pair of guide rails is cooperatively associated with the stationary runner, diverts a sliding contact shoe to the turn-out runner, a mechanical deflector engageable for resetting the movable runner so that the other of the pair of guide rails engages the integral straight approach runner, and a renewable runner insert disposed between integral straight approach runner and the respective guide rails of the movable runner.

Abstract: A recoverable bail-off circuit and a direct release and non-recoverable bail-off circuit for enhancing the bail-off function of the air brake pressure on a railway locomotive including a first logic circuit for ascertaining when a non-recoverable bail-off command is present by determining the presence of a manual bail-off signal or the presence of a dynamic bail-off signal and by determining the absence of an emergency brake signal, an electronic and logic circuit for ascertaining when a direct release command is present by determining a freight/passenger mode signal and that a present brake pipe pressure signal is greater than a previous brake pipe pressure signal by a certain pressure and a second logic circuit for ascertaining when a recoverable bail-off command is present by determining the presence of the manual bail-off signal or the presence of a dynamic bail-off signal and determining the presence of the emergency brake signal.

Abstract: A diaphragm-type of variable load control valve device having a diaphragm piston assembly for effectively providing pressurized fluid to the brake cylinders of a railway vehicle in accordance with the brake demand established by a vehicle operator and at a pressure level in conformance with the load condition of the vehicle.

Abstract: A friction brake interface health check system for dynamically diagnosing and monitoring the operational status of a plurality of input signals by using a pattern fault recognition and an intelligent diagnostic matrix which is generated by brake level demand, power/brake trainline, electric brake feedback and electric brake rate request modules to control an interface health determination fault monitor module which determines which errors are to be reported to the event interface file, the RAM fault log and which are displayed on a seven (7) segment display.

Abstract: A railroad car brake system, comprising, a pneumatic-to-hydraulic transducer connected to a brake control unit for developing braking pressure in response to a brake command request, and a plurality of disc brake units connected to the pneumatic-to-hydraulic brake pressure transducer and being characterized by the fact that the disc brake units are divided into high speed disc brake units and low speed disc brake units and a control valve is installed between the brake pressure transducer and the disc brake units so that the pressurized fluid may be supplied from the brake pressure transducer either to the high speed disc brake units, or to the low speed disc brake units.

Abstract: An automatic and dynamic health monitoring system for detecting wheel lockup conditions caused by an unintentional unreleased handbrake or an unexpected traction motor seizure on multiple-axle railway vehicles by logically sensing and determining the status and operations of the input sensors and indicators to quickly and accurately diagnose the situation and to initiate an output fault code log signal.

Abstract: An arrangement for enhancing a bail-off function a railway vehicle comprising, a non-recoverable bail-off circuit for supplying an output signal to a brake cylinder calculation circuit when a bail-off condition a freight operating mode, a drop in brake pipe pressure is present, and an emergency brake state is absent, a recoverable bail-off circuit for supplying an output signal to the brake cylinder calculation circuit when a bail-off condition and an emergency brake state is present, the brake cylinder calculation circuit supplying an automatic brake cylinder demand signal on one input of a relay valve emulation circuit and receiving an independent brake cylinder demand signal on another input of, the relay valve emulation circuit which supplies output signal to a feedback control circuit producing output signals which are supplied to an application valve and a release valve for controlling the level of air pressure in an air brake cylinder, and a transducer for sensing and feeding back a signal correspondin