Abstract: An automated tribometer for measuring the coefficient of friction of the tread and gauge surfaces of railroad rail is disclosed. A tribometer is provided that is pushed in front of a high-rail vehicle, wherein during operation, the tribometer extends a rail test assembly to contact the surfaces of the rail. The rail test assembly has a rail testing wheel that is urged towards contact with the rail to be tested, and eventually contacts the rail, and lastly applies a known load to the rail. The testing wheel is then dynamically braked to slow the testing wheel to the point of creepage. The automated tribometer then can calculate the coefficient of friction of the rail.

Abstract: For grinding use on the base underside of continuous in-track welded rail type track defining a railroad right of way, for removing rail excess weld metal from the underside of the rail base, at the weld joint thereof, after ballast has been sufficiently removed from between the ties at the joint involved, in which the apparatus comprises a cart that is wheeled to ride on and extend crosswise of the track, and defines at one end a carriage way that extends to one side of the right of way, with the carriage way being equipped with a carriage which carries a post structure that is adjustable lengthwise of same, and that carries an adjustably mounted grinding head that rotatably mounts on the upper side of same a grinding wheel that is applied, when in its operative relation, to the underside of the rail base, from outside the right of way and under the rail involved, in which the grinder head may be raised by adjusting the post structure lengthwise thereof to bring the uppermost portion of the rim of the grindi

Abstract: For grinding use on the base underside of continuous in-track welded rail type track defining a railroad right of way, for removing rail excess weld metal from the underside of the rail base, at the weld joint thereof, after ballast has been sufficiently removed from between the ties at the joint involved, in which the apparatus comprises a cart that is wheeled to ride on and extend crosswise of the track, and defines at one end a carriage way that extends to one side of the right of way, with the carriage way being equipped with a carriage which carries a post structure that is adjustable lengthwise of same, and that carries an adjustably mounted grinding head that rotatably mounts on the upper side of same a grinding wheel that is applied, when in its operative relation, to the underside of the rail base, from outside the right of way and under the rail involved, in which the grinder head may be raised by adjusting the post structure lengthwise thereof to bring the uppermost portion of the rim of the grindi