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| Number | Title | Issue Date |
| 7316084 | Track sledding machine The invention relates to a machine for use in track sledding operations. Machine (1) comprises a wagon (2) having adjustably carried therebeneath a multibladed plough (3). A rail clamp assembly (4) is included for suspending the track abo... | 01/08/2008 |
| 7192238 | Method for loading a freight train In a method of loading several like coupled storage cars with bulk material, a first storage car is first filled with the bulk material by reducing the conveying speed mode of a bottom conveyor band in the first storage car to a bulk material storing speed mode whil... | 03/20/2007 |
| 7081824 | Track monitoring equipment The alignment of railway tracks may be monitored using an accelerometer (36) mounted on a bogie (24) of a railway vehicle to detect lateral accelerations, and a displacement transducer (38) to monitor the lateral displacements of a wheelset (... | 07/25/2006 |
| 7050926 | Method of surveying a track In a method of surveying a track (9), a first or mobile measuring vehicle (1) and a second or stationary measuring vehicle (2) are placed at a distance apart from one another on a track section to be measured. A reference line (14) is for... | 05/23/2006 |
| 7010412 | Method for calculating parameters in road design of S-type clothoid, complex clothoid and egg type clothoid The present invention relates to a method for calculating parameters in a road design of a S type, a complex type and an egg type clothoid, and in particular to a method for calculating a parameter value capable of determining the size of a clothoid that is inserted... | 03/07/2006 |
| 6158352 | Machine and method for rehabilitating a track A mobile machine for rehabilitating a track has a machine frame extending in a longitudinal direction and supported by undercarriages for mobility on the track in an operating direction, the machine frame being composed of a leading frame part with respec... | 12/12/2000 |
| 6089163 | Apparatus for adjusting the distance between rails A system for adjusting the separation distance between adjacent rails over which vehicles travel, the apparatus including a vehicle moveable along the rails and including a boom or pivoted art member mounted on the frame, the boom or arm extending in cant... | 07/18/2000 |
| 5613442 | Arrangement and method for mesuring and correcting the line of a track The invention relates to an arrangement and method for measuring and correcting the line of a track. The method comprises forming an optical reference beam between an emitter on an emitter bogie and a position-sensitive receiver on a measuring and correct... | 03/25/1997 |
| 5481982 | Track surfacing machine and method for correcting the track geometry based on track cant and measured lining force A track surfacing machine for correcting the track geometry includes a machine frame supported by undercarriages for mobility in an operating direction and including lining drives for correcting the track in a direction transversely to the track and measu... | 01/09/1996 |
| 5113767 | Continuous action ballast compacting machine A continuously advancing track working machine for compacting ballast comprises a self-propelled machine frame supported by undercarriages on the track for mobility in an operating direction and a track stabilization assembly vertically adjustably mounted... | 05/19/1992 |
| 4903608 | Machine for laterally displacing a track A machine for laterally displacing a track comprises at least one vertically adjustable tamping head having reciprocable vibratory tools for tamping ballast under the ties; a compact operating unit comprising a common carrier frame, a vertically and later... | 02/27/1990 |
| 4895078 | System for the continuous reciprocal self-alignment of rails on sleepers System for the continuous reciprocal self-alignment of rails on sleepers, which comprises pre-installed bolts or like locking means in cooperation with a machine which lays, positions and secures the elements that clamp the rails, the rails being first an... | 01/23/1990 |
| 4658730 | Railroad correction apparatus Apparatus for continuously surveying and aligning railroad track has a measuring system with a leading point and a trailing point, both points being on the track center line. Two tensioned wires extend between these points, respectively, and a common inte... | 04/21/1987 |
| 4655142 | Apparatus for correcting the level and cross level of a track A track leveling, lining and tamping machine comprises a track lifting assembly, a leveling reference system associated with the track lifting assembly, the reference system including a reference line associated with each track rail, each reference line h... | 04/07/1987 |
| 4589343 | Rail maintenance machine the chassis of which is equipped with a device for lifting and shifting a railway track The machine is intended for the displacement of open track sections and switch gear. For this purpose, it is provided, for each line of rails, with a shifting roller (17), a hook (11) for the lifting of the switch gears and roller (12) for the lifting of ... | 05/20/1986 |
| 4574704 | Apparatus for guiding a railroad track positioning device A guidance system permits of guiding the railroad track positioning device of a track renewal and maintenance machine as the machine moves in the track working direction. To this end the curvature of a track section to be worked upon comprised in a chord ... | 03/11/1986 |
| 4534296 | Rail gauger A track gauger includes a vertically movable gauger frame having a pair of fixed rail gauge bars extending between the rails upon a lowering of the frame. The gauger frame lies crosswise relative to the frame of a rail vehicle on which it is mounted, and ... | 08/13/1985 |
| 4497255 | Mobile track alignment machine A mobile track alignment machine comprises a track alignment tool positioned in a track section to be aligned, a drive operating the tool for alignment of this track section, a control for the drive and a reference system for operating the drive control i... | 02/05/1985 |
| 4409901 | Apparatus for performing operations on a railway track Apparatus for performing operations on a railway track, comprising an automatically actuated rail adjusting mechanism with parts to engage opposite edges of a flange of a flanged rail for adjusting the relative positions of a rail and a sleeper vertically... | 10/18/1983 |
| 4367681 | Dynamic loading correcting device An improved technique for correcting errors in track, for example errors in alignment and cross-level. A record of the actual geometric condition of a section of track is obtained by running a recording car operating at a predetermined speed and axle load... | 01/11/1983 |
| 4363274 | Center line follower An electromechanical device for sensing the center line of a track is disclosed. The track center line is previously marked out by a line of nails protruding upwardly from the ties and the center line follower is moved by engagement with the rails to righ... | 12/14/1982 |
| 4341160 | Mobile machine for the treatment of railway tracks Railway track tamping machine comprising a leveling device regulated by two reference lines (D1, D2) each determined by the alignment of an emitter (9, 90), a mask (10, 100) and a receiver (11, 110) which are sensitive to the variati... | 07/27/1982 |
| 4301738 | Apparatus for the replacement of rails of a track An apparatus for the continuous replacement of track rails comprises a forward and a trailing track renewal vehicle, which may have a common frame. The rails are unfastened and removed from a first track section on which an undercarriage supports the forw... | 11/24/1981 |
| 4176456 | Automatic integrating liner A track aligning device for monitoring the curvature of a track and adjusting the track successively to correct the curvature incorporates two taut wires mounted on a car or cars running on the track, the wires each defining two chords each extending betw... | 12/04/1979 |
| 4170942 | Mobile leveling, lining and ballast packing machine A mobile leveling, lining and ballast packing machine for the non-stop correction of a track comprises a pair of elongated vibratory ballast compacting plates extending along the tie ends at each side of the track and arranged cooperatively to compact the... | 10/16/1979 |
| 4127069 | Railroad track shifting machine with shift limiting device The invention provides for a stop device positioned on a railroad track shifting machine such as a track lifting and/or tamping machine and a sensor for generating a control signal to terminate or control the shifting action of the machine when the shifti... | 11/28/1978 |
| 4125075 | High speed production tamper compactor The invention relates to a process and apparatus for correcting the surface of a railroad track by exerting pressure on the shoulders of the track from both sides thereof by means of vibrating compactors mounted on a vehicle chassis and provided with pres... | 11/14/1978 |
| 4046079 | Track surfacing apparatus A mobile apparatus for dynamically stabilizing a ballast bed supporting a track at a desired level comprises a reference for determining a deviation of the track grade from the desired level, a chassis running on the track rails on flanged wheels, vibrato... | 09/06/1977 |
| 4046078 | Track surfacing apparatus A mobile apparatus for dynamically stabilizing a ballast bed supporting a track at a desired level comprises a reference for determining a deviation of the track grade from the desired level, and at least two track stabilization units spaced from each oth... | 09/06/1977 |
| 4031625 | Reference system for a track working machine A reference system for a track leveling and/or lining tamper comprises a reference wire or cord whose end and measuring points are held on bogies connected to the machine and laterally pressed against a selected track rail. A clamping mechanism is associa... | 06/28/1977 |
| 3952665 | Device for laterally displacing a railroad track A method and a system for correcting the misalignment of a railroad track is provided which corrects the track by the steps of applying a force laterally of the track to move it in the direction of its correct position, sensing the track position relative... | 04/27/1976 |
