| Patent application number | Description | Published |
|---|
| 20080251265 | Method and installation for rehabilitating a ballast bed - In a method of rehabilitating a ballast bed of a track by excavating contaminated ballast and conveying the excavated contaminated ballast by a first conveyor band unit to a screening unit for cleaning the excavated contaminated ballast, the ballast bed is rehabilitated selectively, in dependence on the degree of contamination of the ballast, in a first or second operating stage. The first operating stage comprises the steps of excavating an upper layer of the ballast by a first excavating device which precedes a second excavating device, in an operating direction, and conducting the excavated upper ballast layer to the first conveyor band unit while, at the same time, the remainder of the ballast is excavated by the second excavating device and is conducted to a second conveyor band unit for disposal. The second operating stage comprises the steps of excavating the ballast solely by the second excavating device and deflecting the excavated ballast to the first conveyor band unit for cleaning while the first excavating device is inoperative. | 10-16-2008 |
| 20080302265 | Method for Replacing Old Ties of a Railroad Track with New Ties - The invention relates to the replacement of old ties of a railway track by new ties. This aim can be achieved by spreading the two rails apart from each other. The reception of ballast gravel for producing a recess of ballast is carried out in a region below of the sleeper head of a ballast bed, which is located adjacent to the region of the old sleepers along their longitudinal axis. The received ballast gravel is temporarily stored and, once the new sleepers have been deposited, thrown off for the purpose of ballasting. In parallel and prior to the deposit of new sleepers, excess ballast gravel is ploughed in the recess of ballast so as to produce a leveled surface of ballast. | 12-11-2008 |
| 20100064928 | TAMPING UNIT FOR TAMPING A TRACK - A tamping unit ( | 03-18-2010 |
| 20100132582 | MACHINE FOR PICKING UP AND STORING RAIL FASTENINGS OF A TRACK, AND A METHOD - A machine ( | 06-03-2010 |
| 20110030573 | TAMPING MACHINE - A tamping machine designed especially for tamping switch sections comprises two inner and two outer tamping units ( | 02-10-2011 |
| Patent application number | Description | Published |
|---|
| 20100018432 | METHOD AND MACHINE FOR LOWERING A TRACK - For the controlled lowering of a track, a longitudinal inclination of the track is determined at a rear tracing point of a measuring system and stored. For a length reaching back at least 10 meters, a current vertical profile is formed, and a rear compensation straight line is calculated which is superimposed upon the vertical profile and renders a target track position. The rear tracing point is guided by calculation along the rear compensation straight line, so that a compensation value for the position of the measuring chord ensues at a middle tracing point positioned between the rear tracing point and a front tracing point. | 01-28-2010 |
| 20100154233 | METHOD OF MEASURING A TRACK POSITION - Measurement of a track position is carried out in successive measurement sections ( | 06-24-2010 |
| 20100242781 | Method and Machine for Compressing Ballast of a Rail Track - The compression of ballast for a rail track takes place after two-stage cleaning by a cleaning machine. For this purpose, cleaned ballast is dispensed and a first ballast layer is thereby formed. The rail track which is laid on the first ballast layer has lateral oscillations imparted to it by a front stabilization unit, and the first ballast layer is thereby compressed. The formation of a second ballast layer takes place by a second chute, which second ballast layer is subsequently compressed by a rear stabilization unit. | 09-30-2010 |
| 20100319940 | METHOD FOR REHABILITATION OF A BALLAST BED OF A TRACK - For the purpose of rehabilitation, a ballast bed of a track is taken up in the form of an upper bed layer by a first clearing device and cleaned. The bulk material accruing in the process is discharged in front of the first clearing device—with regard to the working direction—laterally upon the ballast bed in a bed region. The latter can only be covered by the second clearing device which is configured to be of greater width—with regard to a transverse direction of the track—than the first clearing device. Thus, it is possible to intermediately store bulk material, accruing in a front end region of a machine, on the ballast bed for later use. | 12-23-2010 |
