Abstract: In a method of tamping a track, the displacements between the two reference points relative to each other are recorded during a first advance of the track tamper along the track to form a first curve indicating an existing track position. On the basis of the first curve, correction values are formed and a second curve indicating a desired track position is computed on the basis of the correction values. The track is then repositioned to the desired track position during a second advance of the track tamper along the track in response to the correction values while the track is tamped.

Abstract: A mobile tamping machine for tamping ballast under a main track comprises a machine frame supported on undercarriages running on the main track for moving the machine frame in an operating direction, the main track defining a track plane, a ballast tamping unit mounted on the machine frame between the undercarriages, a main track lifting and lining unit vertically and transversely adjustably mounted on the machine frame immediately ahead of the ballast tamping unit in the operating direction, a drive for vertically and transversely adjusting the main track lifting and lining unit, an auxiliary lifting unit mounted on the machine frame for lifting a branch track branching off the main track at a track switch, and a common measuring system for controlling lifting of the track switch, the common measuring system including an emitter of a light beam forming a reference line extending parallel to the track plane, the light beam emitter being positioned at a fixed distance from the main track, and a receiver of the

Abstract: A crib ballast clearing machine comprises a machine frame supported on undercarriages adapted to support the machine frame on a track comprised of rails fastened to ties defining cribs therebetween, and a ballast scarifying device comprising a revolvable endless excavating chain vertically adjustably mounted on the machine frame for removing ballast from a respective one of the cribs between the rails, a drive for revolving the endless excavating chain, and a displacement drive for vertically adjusting the endless excavating chain. The endless excavating chain has a lowermost ballast receiving part being immersible in ballast in the crib between the rails upon vertical adjustment of the endless excavating chain.

Abstract: A machine frame of a ballast bed rehabilitation machine is composed of two articulatedly coupled frame parts. A longitudinal inclination meter is mounted on the leading frame part, in the working direction, for detecting the inclination of the track. A laser reference system is provided for controlling the position of vertically adjustable track working units arranged on the trailing frame part, the laser reference system being formed by a laser transmitter, equipped for relative adjustment of a reference plane by means of an adjusting device, and laser receivers. A control device is designed for the time-delayed delivery, in dependence upon the distance travelled, of a longitudinal inclination value detected by the longitudinal inclination meter to the adjusting device of the laser transmitter. The reference plane, used to guide the working units, is adjusted in accordance with the detected longitudinal track inclination.

Abstract: 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 respect to the operating direction and a trailing frame part connected to the leading frame part by an articulation, with at least one working unit being mounted on the machine frame for adjustment relative thereto. A reference system for controlling the position of the working unit is arranged on the leading frame part and consists of a reference line extending in the longitudinal direction between two of said undercarriages, a measuring axle designed to roll on the track, and a measuring device connected to the measuring axle for detecting a movement, transversely to the longitudinal direction, of the measuring axle relative to the reference line.

Abstract: Before replacing an old tie with a new tie in a railroad track, the associated tie plates are temporarily welded to the respective rail bases of the two rails with the aid of an old rail spike.

Abstract: A method for correcting the track geometry of a track, includes measuring an initial track position of the track following lifting of the track and tamping under the track, and so computing a final desired track position as to eliminate long-wave alignment errors of the track geometry. Subsequently, corrective values are determined commensurate with a difference between the final desired track position and the initial track position, and the track is stabilized by lowering the track in a controlled manner into the final desired position and controlling in response to the corrective values the static load and/or transverse vibration acting on the track, thereby eliminating during track stabilization in particular long-wave geometrical track errors.

Abstract: A machine for treating a track composed of two rails fastened to ties and rail pads interposed between the rails and ties has a machine frame supported on the track for mobility in a longitudinal direction. Mounted to the machine frame are two vertically adjustable track lifting units spaced from one another in the longitudinal direction, each being associated with a tie displacement device having a pressing element. The latter is arranged for application to a tie to be displaced with the aid of a drive adjusting the pressing element transversely to the longitudinal direction. A vertically adjustable stripping device positioned between the two track lifting units is provided for removing the rail pads situated on the displaced tie.

Abstract: A box car for transporting bulk material comprises a frame supported on undercarriages running on a track, a box supported on the frame for storing the bulk material, a bottom conveyor band arranged in the box, the bottom conveyor band being reversibly drivable in opposite conveying directions, and an inclined transfer conveyor band projecting beyond one end of the box car. A chute is arranged at an end of the box car opposite the one end and spaced from the transfer conveyor, an end of the bottom conveyor band being associated with the chute, a hopper is associated with the chute for discharging bulk material into the hopper, and a charging conveyor band has a discharge end above the hopper, the charging conveyor band being displaceable in the longitudinal direction.

Abstract: A machine for distributing ballast in a track bed comprises a machine frame supported on the track by undercarriages for mobility in an operating direction, a ballast plow adjustably mounted on the machine frame for distributing the ballast in the track bed, drives for adjusting the ballast plow relative to the machine frame, a contactless sensor arranged ahead of the ballast plow in the operating direction for detecting an existing track bed profile extending perpendicularly to the longitudinal direction, a position indicator for indicating a change in the position of the ballast plow relative to the machine frame, and a control for the drives comprising a memory storing a desired track bed profile.

Abstract: A machine for compacting and shaping a ballast bed comprises a machine frame supported on undercarriages on a track for mobility in an operating direction, a vertically adjustable track stabilization assembly including a vibrator for generating horizontal oscillations extending transversely to the longitudinal direction and flanged rollers engaging, and running on, the track rails, drives linking the track stabilization assembly to the machine frame for vertically adjusting the track stabilization assembly, and a vertically adjustable plow for profiling the ballast, the plow being affixed directly to the track stabilization assembly to form a structural unit therewith.

Abstract: A rail-movable car (1) for removing and pulling out long rails (3), stored on a transport car (2), includes a car frame (6), supported on an undercarriage (5) guided on rails, and a rail-removing device (4) for gripping and shifting a long rail (3) in the longitudinal direction of the car. The rail-removing device (4) includes a crawler (7), wherein the crawler is furnished with a first drive (11) and is deflectable around two deflection rollers (9), disposed at a distance from each other and exhibiting a rotation axis (10), contact plates (15) disposed in series in the removal direction for engaging and resting at the long rail, and a counter support (8) adjustable by means of a second drive (23) relative to the crawler, and wherein the counter support (8) is adapted to roll off on the long rail (3).

Abstract: A box car for carrying bulk material and capable of being incorporated into a freight train of a plurality of successively arranged like box cars, the box car comprising a box having an open top and an endless horizontal conveyor at the bottom, one of the endless conveyor ends being a rear end in the conveying direction and another endless conveyor end being a front end in the conveying direction, and a bulk material transfer device for transferring the bulk material from a preceding to a succeeding box car, the preceding and succeeding box cars being coupled to each other, the bulk material transfer device comprising an inclined endless conveyor having a lower end and an upper end, a drive for moving the inclined endless conveyor, and an adjusting drive for adjusting the distance of the transfer device from the ends of the horizontal endless conveyor, and the inclined endless conveyor being so arranged that the lower end subtends the front end of the horizontal endless conveyor of the preceding box car, and

Abstract: A machine for withdrawing bulk material from a track, in particular ballast aterial, includes a bulk material clearing device vertically adjustably secured to a machine frame and including a rotatable, endless scraper chain positioned between the rails of the track immediately above the track. A first conveyor extends in longitudinal direction of the machine frame and has a receiving end which receives bulk material from the clearing device. Immediately trailing the clearing device in the operating direction is a vertically adjustable sweeping device which includes a sweeping broom rotatable about a pivot axis extending horizontal and perpendicular to the longitudinal direction of the machine frame. A second conveyor immediately trails the sweeping device in the longitudinal direction of the machine frame and includes a receiving end for receiving bulk material from the sweeping broom.

Abstract: A machine for distributing ballast on a ballast bed supporting a track comprises a machine frame supported on the track by undercarriages, the undercarriages having wheels making point contacts with the track and the contact points defining a reference plane, chutes arranged on the machine frame and spaced from each other in a direction extending transversely to the machine frame, each chute having a discharge end for downwardly discharging ballast, and a vertically adjustable wiper unit downwardly projecting from the discharge end of each chute towards the track and extending the chute. The wiper unit comprises a drive for adjusting the wiper unit relative to the discharge end, and defines an inlet opening associated with the discharge end of the chute and an outlet opening defining a wiper edge, the wiper edge extending parallel to the reference plane.

Abstract: A track work machine for excavating material from a bed supporting a track comprises a machine frame, undercarriages supporting the machine frame on the track for movement in an operating direction, a vertically adjustable endless excavating chain operable to be trained, and revolve, around the rails in a plane inclined relative to the longitudinal direction, and a ballast clearing device mounted on the machine frame between the undercarriages, the ballast clearing device comprising a carrier frame affixed to the machine frame, a vertically and transversely adjustable plate-shaped clearing tool, and drives for vertically adjusting the clearing tool over a distance of at least 65 cm between a raised rest position and an operating position wherein the clearing tool is immersed in a respective one of the cribs, and for adjusting the clearing tool transversely to the longitudinal direction.

Abstract: A track maintenance machine for excavating material from a track bed comprises a machine frame comprising an upwardly recessed machine frame section, undercarriages supporting the machine frame on the track for movement in an operating direction, and sequentially arranged on the machine frame in the operating direction, a ballast receptacle comprising chutes for discharging the ballast from the receptacle, an inclined, vertically adjustable and revolvable endless excavating chain comprising a drive at an upper end for revolving the chain, the excavating chain being mounted underneath the upwardly recessed machine frame section for excavating the material from the bed, a track lifting device, a conveying arrangement arranged to remove the received excavated material and having an inlet end arranged below the upper excavating chain end to receive the excavated material therefrom, the ballast discharging chutes being arranged immediately behind the conveying arrangement inlet end in the operating direction, and

Abstract: A crane carrying vehicle for transporting track ties comprises an elongated machine frame supported on undercarriages for movement on rails in an operating direction, the machine frame comprising a storage section for temporarily storing track ties and having two side walls extending in this direction, the side walls being spaced from each other in a transverse direction extending perpendicularly to the operating direction by a distance corresponding at least to the length of the track ties. A track tie supporting platform in the storage section may be tilted between a horizontally extending loading position and an unloading position extending at an angle to the loading position, and the vehicle carries a power-adjustable pivotal crane outrigger with a gripping device for gripping track ties.

Abstract: A track lining machine comprises a machine frame supported on the track by undercarriages, a track stabilization assembly vertically adjustably mounted on the machine frame and engaging the track, the track stabilization assembly comprising a vibrator for generating oscillations of the track engaged by the assembly, a reference system comprising a lining reference base, a lining drive linking the track stabilization assembly to the machine frame for displacing the track engaged by the track stabilization assembly in a direction extending transversely to the track into a position controlled by the lining reference base, and a spacing member interposed between the lining drive and the track stabilization assembly.

Abstract: A machine for laying a catenary cable or a trolley wire of an overhead line extending above a track comprises a machine frame supported on undercarriages for mobility along the track, a storage drum mounted on the machine frame and carrying a reel of the catenary cable or trolley wire to be paid out from the storage drum, a guide device for the paid-out catenary cable or trolley wire comprising a guide roller arranged to be engaged by the paid-out catenary cable or trolley wire and a drive for vertically adjusting the guide device. The guide device is pivotal about a horizontal axis extending in the longitudinal direction of the machine frame, and a drive is arranged for pivoting the guide device about the horizontal axis.