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| Number | Title | Issue Date |
| 7322879 | Reprofiling device for the rails of railroads that captures waste A device for the continuous reprofiling of the rails of railroads includes at least one abrasive rail reprofiling unit (2) guided along the railroad tracks and comprising at least one abrasive disk (3) that can be pressed against a rail (1). Thi... | 01/29/2008 |
| 6953386 | Active spark control A method and apparatus for directing a spark stream generated by contact between a rotating grinding stone and a railhead away from nearby combustible material, wherein the grinding stone is tilted at an angle such that only one of the leading and trailing edges of ... | 10/11/2005 |
| 6805621 | Rail grinding machine A rail grinding machine comprises a machine frame having guide wheels running on the rail, a follower frame mounted on the machine frame, the follower and machine frames being pivotally connected for pivoting about an axis extending in the longitudinal direction, an... | 10/19/2004 |
| 6663476 | Portable multi-purpose rail grinding machine A portable multi-purpose rail grinding machine for grinding field welds, switch points and frogs, including a hydraulically driven grinder with a disk-shaped stone adjustably mounted on a frame for setting the grinding stone between horizontal and vertica... | 12/16/2003 |
| 6358140 | Railroad rail support for a grinder A grinder support apparatus for supporting a grinder on a railroad rail. The apparatus comprises a support wheel adapted to roll on a top surface of the rail, and a frame having the support wheel connected thereto. The frame comprises a handle for a user ... | 03/19/2002 |
| 6314853 | Portable cutting apparatus A cutting apparatus for cutting a rail or other elongated workpiece includes a rotatable blade for cutting the rail, a blade cover for covering the blade, an engine (or motor) for driving the blade, and a frame for supporting the blade, the blade cover an... | 11/13/2001 |
| 6234889 | Rail cutting machine A rail cutting machine with an engine block rotating a grinding wheel and a support guiding the grinding wheel in its plane transversely of the rail while being pivotally connected onto a vice to be fastened to the rail the grinding wheel being mounted at... | 05/22/2001 |
| 6139410 | Main body of grinding assembly for use in track rail joint grinding apparatus A main body 1 of a grinding assembly for use in a track rail joint grinding apparatus comprising a pair of grinding assemblies A, A' rotating around vertical shafts 5, 5' in mutually opposite directions so as to grind one and the other width-wise halves o... | 10/31/2000 |
| 5997391 | Device for the continuous and fine reprofiling in situ of the surface of the head of at least one rail of a railway track A fine grinding device for the continuous reprofiling in situ of the surface of the head of at least one rail of a railway track includes at least one fine grinding unit per rail. Each one of these fine grinding units carries a beam (1) on which are mount... | 12/07/1999 |
| 5971838 | Rail-scraper devices and installations An abrasive block 1 used for scraping wet leaves, snow or ice from a rail R of a railway track in order to enhance traction, is urged onto the rail R by a piston 2 under oil-pressure within a cylinder 3. The pressure is created via a diaphragm 11 which se... | 10/26/1999 |
| 5735734 | Apparatus for grinding rails Apparatus for grinding rails of a track, includes a carrier frame which has roller-type tracers adapted for mobility on the track and is swingably mounted to a support frame for rotation about a pivot axis oriented longitudinally in direction of the rail.... | 04/07/1998 |
| 5580299 | Process and apparatus for machining the top surface of a rail by circumferential grinding In the proposed process of machining the top surface of a rail by a circumferential grinding by means of at least one abrasive product, which is moved along the rail and urged against the top surface of the rail and rotates about an axis of rotation which... | 12/03/1996 |
| 5575709 | Rail grinding machine for grinding rails of a track A rail grinding machine for grinding rails of a track includes a machine frame with rollers for support on both rails of the track and a swivel drive for swingably mounting a carrier frame to the machine frame for rotation about a pivot axis which extends... | 11/19/1996 |
| 5567196 | Rail grinding machine A mobile rail grinding machine comprises a machine frame extending in a longitudinal direction, and undercarriages supporting the machine frame on the track rails for movement in an operating direction. A mounting frame is supported on the track rails by ... | 10/22/1996 |
| 5545079 | Apparatus forming a cutting machine or circular saw An apparatus forming a portable, hand-operated machine (1, 1', 1"), having a circular cutting wheel (4) or saw blade (4") which is rotatable about a center of rotation (5, 5"), comprises a double-armed holder (9) with a rear arm (20) which, at its rear, f... | 08/13/1996 |
| 5525098 | Machine for molding localized sections of a railroad rail, particularly for welding ends of rails or other local defects The machine comprises an automotive vehicle (1) and at least one grinding carriage (2). During the grinding operation of the rail, the automotive vehicle (1) is standing still, immobile with respect to the railroad track, whereas the grinding carriage (2)... | 06/11/1996 |
| 5486136 | Cutting machine for railroad rail A cutting machine for a railroad rail performs clamping by use of a screw to fasten a catch arm onto a gauge which indicates a cutting position and is fastened onto a railroad rail. The catch frame is connected to a main body block via slide shafts, and a... | 01/23/1996 |
| 5303514 | Rail grinding apparatus A rail grinding apparatus for railroad rails has a grinding belt wrapped around motor-driven pulleys which are rotatably mounted on a frame. The frame is supported on the surface of a rail by rollers which bear the weight of the grinding apparatus. A nois... | 04/19/1994 |
| 5140776 | Apparatus and method for measuring and maintaining the profile of a railroad track rail A strobe light, oriented directly over a railroad track rail and at a 45° angle to the horizontal, projects a light line across the rail. A pair of cameras oriented directly over the rail view the light image on the rail. The light lines reflected from t... | 08/25/1992 |
| 5086591 | Reprofiling method of the rails of a railroad track and railroad vehicle for performing the same A method for reprofiling the rails of a railway track and a machine for doing so. The reprofiling machine comprises measuring apparatus 16 of the transversal profile of the rail 11 for each line of rails. It comprises a storing 23 of at least one base ref... | 02/11/1992 |
| 4864776 | Rail grinding apparatus Improved rail grinding apparatus for correcting flatness errors in the slew bearings of large earthmoving machines is disclosed. The grinding apparatus includes a grinding wheel (22) rotated by a motor (24) and forced against a rail (13) by lead screws (2... | 09/12/1989 |
| 4854088 | In-track rail base grinding method 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 ... | 08/08/1989 |
| 4765098 | Rail cutting apparatus A rail cutting apparatus mountable on a rail and having a linkage structure which supports a rail saw in an upright position at either side of a rail. The linkage structure and rail saw have coacting structure including a mounting block and a mounting pla... | 08/23/1988 |
| 4751794 | In-track rail base grinding apparatus 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 ... | 06/21/1988 |
| 4622781 | Rail grinding machine The angle through which the grinding modules of a railroad track rail grinding machine can be tilted is increased by pivotally mounting the grinding modules on a carriage which is in turn pivotally mounted relative to the rail grinding machine's supportin... | 11/18/1986 |
| 4396323 | Mobile rail contouring machine A mobile rail contouring machine is arranged for continuously milling such running surface irregularities as ripples, corrugations and overflow metal from rail heads during the continuous movement of the machine along a railroad track. The machine compris... | 08/02/1983 |
| 4156991 | Rail cutting apparatus A rail cutting apparatus mountable on a rail and having a linkage structure with an offset arm connected to one end of the linkage, a cutting device having a mounting bar with a mounting element lying in a plane containing the cutting element of the cutti... | 06/05/1979 |
| 4068415 | Rail cutting apparatus A rail cutting apparatus including a base adapted to be disposed on the head of a rail. Opposed, inwardly directed fingers are located on the base for disposition about the head of the rail and the fingers on at least one side of the base are movable towa... | 01/17/1978 |
| 3974596 | Machine tool for cutting-off rails A machine-tool for cutting off rails comprising a motor block, an arm carrying a grinding wheel at its end and a machine-tool carrying holder to be secured onto the rail, said holder comprising two hingedly interconnected arms and pivoted with their free ... | 08/17/1976 |
| 3945749 | Clamping apparatus for supporting a machining device A clamping apparatus attachable to a rail for supporting a portable machine tool therefrom including exchangeable and formed clamping blocks with pre-set adjustment members to match points on the web contour between the base and head of all sizes of rail,... | 03/23/1976 |
