Abstract: A system is provided for use with, a wheeled vehicle. The system includes a media reservoir capable of holding a tractive material that includes particulates; a nozzle in fluid communication with the media reservoir; and a media valve in fluid communication with the media reservoir and the nozzle. The media valve is controllable between a first state in which the tractive material flows through the media valve and to the nozzle, and a second state in which the tractive material is prevented from flowing to the nozzle. In the first state, the nozzle receives the tractive material from the media reservoir and directs the tractive material to a contact surface such that the tractive material impacts the contact surface that is spaced from a wheel/surface interface. The system can modify the adhesion or the traction capability of the contact surface with regard to a subsequently contacting wheel.

Abstract: An antislip material ejector comprises an antislip material container 12 which stores antislip material, an air inlet pipe 13 which is arranged in the antislip material container, a compressed air supply pipe 14 which supplies compressed air to the air inlet pipe, a nozzle portion 16 which is arranged in the air inlet pipe, a mixing pipe 17, which is connected with the air inlet pipe, in which the antislip materials are mixed with air and in which a suction hole 18 is formed through which the antislip material passes, a connecting pipe, one end of which communicates with the mixing pipe and the other end of which communicates with a cavity in the antislip material container, and an ejection pipe 20 which is connected with the mixing pipe and which ejects the antislip material together with the compressed air.

Abstract: A track cleaning system mounted on a railcar and comprising track rail cleaning nozzles, leaf removal nozzles and third rail cleaning nozzles. Each of the nozzles may provide a fan-shaped spray pattern diverging to either side of a central axis and having a major axis. For each track rail nozzle, the central axis may be perpendicular to a horizontal top rail surface and the major axis may be perpendicular to the rail surface centerline. For each leaf nozzle, the central axis may be directly downwardly from the horizontal and the major axis may be parallel to an elongated spray bar on which one or more leaf nozzles are mounted. For each third rail nozzle, the central axis may be directed downwardly from the horizontal and the major axis may be positioned vertically. The third rail nozzles may be mounted to the rear of the leaf nozzles to aid in leaf removal. Main water valves are remotely actuated by air to release high pressure water to corresponding sets of nozzles.

Abstract: An apparatus for destroying unwanted vegetation in the region of travel ways that includes a steam generating unit, which is mounted on a vehicle and to the steam output of which are connected steam nozzles which form at least one nozzle bar. The at least one nozzle bar extends transversely to the direction of travel essentially across the width of the travel way and is mounted beneath the bogie of the vehicle by a central support of adjustable height. The apparatus further includes lateral support portions with nozzle bar sections which are pivotable about a shaft extending in the direction of travel, as well as adjustable vertically and laterally. The central support and the lateral support portions are constructed as an open-bottomed hood with a top, side walls and end walls.

Abstract: A method and apparatus for enhancing traction capacity and energy efficiency of locomotives and powered cars while helping to maintain the crown of the rail profile for better ride quality of trains. This is achieved by utilizing beneficially the effects of lateral creepage of a number of small, hard nonpowered cleaning wheels with alternately opposite angles of attack. The apparatus may include deflector shields and hot air jets for cleaning and preparing the rail crown surface, when the apparatus is used in locomotives or cars. An arrangement for automatically adjusting the angle of attack of the cleaning wheels is also given. The degree of cleaning of the rails can be electrically controlled by the locomotive engineer as desired including shutting off the device altogether.

Abstract: A method and system for maximizing the track-to-wheel adhesion and minimizing the rolling resistance of the wheels of a locomotive is disclosed. A low volume of high pressure water, alone or in admixture with wetting agents, cleaning agents, etc. is sprayed onto the wheel contact surface of the rail forward of the driven wheels of the locomotives at very high pressures, i.e. 4,000 to 6,000 psi. followed immediately by ejecting air or other gas under pressure onto the wheel contact surface of the rail to dry the contact surface.