Abstract: The present invention relates to a method for investigating a data transport network, the method comprising at least the following method steps: a) providing a network model, which contains at least network connections and network nodes as network elements and corresponds to an actually existing or a planned data transport network, and b) verifying the network model is hereby characterized in that in verifying the network model, at least one network-dividing section is cut through the network model and an analysis is conducted relative to the data traffic for at least a part of the network elements affected by the section. In addition, the invention relates to a computer program product for this method.

Abstract: A mobile machine for clearing and planing ballast comprises a machine frame, undercarriages supporting the machine frame for mobility on the railroad track, at least one vertically and transversely adjustable ballast clearing tool connected to the machine frame for clearing ballast laterally outwardly of a respective rail and for planing the ballast upon vertical and transverse adjustment of the tool, the tool being longitudinally adjustably mounted on the machine frame for adjustment in the direction of the railroad track supported by the ballast, and drives connected to the tool for vertically, transversely and longitudinally adjusting the tool.

Abstract: An apparatus for tensioning or longitudinally sliding a rail of a laid track to reduce a gap between adjacent ends of longitudinally successive rail sections to be welded together to form the rail, the fastening elements of the longitudinally successive rail sections having been loosened, which comprises a closed, ring-shaped mechanical structural unit including two longitudinally spaced pairs of rail clamping jaws and two transversely spaced hydraulic cylinder-piston devices connecting the pairs of rail clamping jaws and operating the same. These pairs of rail clamping jaws are spaced longitudinally and the cylinder-piston devices are spaced transversely to define a sufficient central space in the ring-shaped mechanical structural unit for receiving a flash-butt welding head.

Abstract: A mobile apparatus for sequentially exchanging selected consecutive groups of oil ties in an existing railroad track for groups of new ties while retaining groups of old ties therebetween to support the mobile apparatus on the track, comprises at least one bridge-like work vehicle having a frame defining an upwardly recessed portion between respective ends thereof, and a succession of different individual devices mounted in the recessed frame portion of a respective work vehicle and operative to effectuate different sequential operations for exchanging the selected old ties for the new ties, the tie exchanging devices including at least two tie pulling and inserting devices arranged for longitudinal displacement within view of an operator's accommodation. A respective drive displaces each tie pulling and inserting device with respect to the work vehicle frame along a displacement path extending in the direction of the longitudinal extension of the work vehicle frame.

Abstract: A machine for exchanging old ties for new ties, which comprises a self-propelled standard railroad vehicle comprising a machine frame, undercarriages supporting the machine frame for mobility on the railroad track, a drive for advancing the vehicle in an operating direction, and an operator's cab. A tie exchanging device is connected to the machine frame and arranged within sight of the operator's cab, the tie exchanging device being operable for withdrawing the old ties and inserting the new ties and comprising a longitudinally adjustable tie gripping means including a tie clamp, a drive for longitudinally adjusting the tie gripping means, and respective drives for vertically adjusting and for operating the tie clamp between tie engaging and tie releasing positions.

Abstract: A continuously advancing machine for track leveling, lining and tamping comprises a main frame, a single undercarriage supporting the main frame and the main frame having a portion projecting in the track direction from the single undercarriage, a drive connected to the single undercarriage for continuously advancing the main frame in an operating direction, a brake connected to the single undercarriage for stopping the advancing main frame, and an operator's cab, a control arrangement and a power plant mounted on the continuously advancing main frame.

Abstract: A ballast tamping tool for attachment to a reciprocating tamping drive of a ballast tamping machine comprises a shaft having an upper end affixed to the tamping drive and a tamping blade detachably mounted on a lower end of the shaft. A plug-in, form-fitting connection detachably connects the tamping blade to a lower end of the shaft, the detachable connection defining a recess behind the rear surface of the tamping blade and comprising a plug projecting from the lower shaft end and being offset therefrom by a step to form a shoulder, the upper tamping blade edge extending at least partially along, and axially adjacent, the shoulder, and a connecting part at the rear tamping blade surface form-fittingly connecting the tamping blade to the plug.

Abstract: A mobile installation for loading, transporting and unloading track parts such as ties on, in and from open top railroad cars including a train mounted for mobility along a railroad track and having a plurality of open top railroad cars. Adjacent ones of the railroad cars are coupled together and each one of the railroad cars has two parallel side walls with top edges extending in the direction of the railroad track, and two end walls, the end wals of the adjacent railroad cars defining respective gaps therebetween. A power-driven crane is provided for loading and unloading the track parts and has an undercarriage supporting the crane for mobility in the direction of the railroad track. There is also a track supporting the undercarriage of the crane for mobility above the top edges of the railroad cars in said direction. The track includes two parallel guide rails mounted on the top edges of the railroad cars and is spaced apart a distance corresponding to the gage of the crane undercarriage.

Abstract: A mobile apparatus for sequentially exchanging selected consecutive groups of old ties for groups of new ties while retaining a groups of old ties between the selected old ties for support of the mobile apparatus on the railroad track, which apparatus comprises an elongated bridge-like work vehicle having two undercarriages supporting respective opposite ends of the work vehicle on the railroad track, and a succession of different individual devices mounted on the work vehicle between the undercarriages and operative to effectuate different sequential operations for exchanging the selected old ties for the new ties.

Abstract: A mechanical tie gang comprises a train of open top railroad cars, a power-driven crane for loading and unloading ties and having an undercarriage arranged for mobility in the direction of the railroad track, and a track supporting the undercarriage of the crane for mobility above the top edges of the side walls of the railroad cars in this direction, the track comprising two parallel guide rails mounted on the top edges of the railroad cars and being spaced apart a distance corresponding to the gage of the crane undercarriage, the guide rails extending beyond the end walls of the railroad cars into the gaps between adjacent cars.

Abstract: A mobile apparatus for sequentially exchanging selected consecutive groups of old ties in an existing railroad track for groups of new ties while retaining groups of old ties therebetween to support the mobile apparatus on the track, which comprises a continuously advancing bridge-like work vehicle having a machine frame defining an upwardly recessed portion between respective ends thereof and a respective swivel truck supporting each machine frame end. A continuous guide track is mounted atop the work vehicle and a power-driven tie transporting crane is mounted for mobility on the guide track.

Abstract: A mobile apparatus arranged to store and transport bulk material comprises a box car having a frame and a box for storing and transporting the bulk material. A conveyor band arrangement for conveying the bulk material stored in the box in a conveying direction has a portion extending over the length of the box in the lower portion thereof and passes through a slot-shaped outlet opening in a front wall of the box in the conveying direction, and a device having adjustable chutes for selectively discharing the conveyed bulk material to the right and to the left of each rail is arranged outside the box and receives the conveyed bulk material therefrom.

Abstract: A method for sequentially exchanging selected consecutive groups of old ties for groups of new ties while retaining groups of old ties between the selected old ties in a railroad track consisting of two rails fastened to the ties supported on ballast, which method comprises advancing at least one elongated bridge-like work vehicle along the track, sequentially operating a succession of different individual devices mounted on the advancing work vehicle to remove rail fastening elements whereby the selected ties are detached from the rails, to remove tie plates positioned between the detached ties and the rails, to withdraw the detached ties laterally from the track, to scarify the ballast where the detached ties have been withdrawn whereby shaped recesses are formed in the ballast under the rails, to insert new ties in the shaped recesses, to place new tie plates between the new ties and the rails, to tamp ballast under the new ties, and to fasten the rails to the new ties.

Abstract: A continuously advancing track leveling, lining and tamping machine comprises a heavy main frame supported on two spaced apart undercarriages for continuous movement in an operating direction and a power plant, drives and operating controls as well as an operator's cab for operating the drives and controls mounted on the main frame. Two separate carrier frames are arranged between the two undercarriages of the heavy main frame, and a drive connected to the heavy main frame longitudinally displaces the carrier frames in relation to the main frame whereby the carrier frames may be intermittently advanced during the continuous movement of the heavy main frame, this drive having a displacement path corresponding to a distance between at least two successive ties.

Abstract: A mobile machine for leveling, lining and tamping a track has a heavy main frame supported on undercarriages for continuous movement in an operating direction, a power plant, a drive for continuously advancing the main frame along the track in the operating direction and a brake for stopping the advance of the main frame, the power plant, the drive and the brake carried by the main frame, and a lighter subframe pivotally and longitudinally adjustably connected to the heavy main frame. Tamping heads are mounted on the subframe for tamping ballast in intermittent tamping cycles under respective the ties at points of intersection of the two rails and the ties.

Abstract: A mobile machine for leveling, lining and tamping a track has a main frame supported on undercarriages for continuous movement in an operating direction, a power plant and operating controls carried by the main frame, and an elongated subframe pivotally and longitudinally adjustably connected to the main frame, the subframe having two ends and being arranged ahead of one of the undercarriages supporting the main frame, respective undercarriages supporting the subframe ends. Tamping heads are mounted on the subframe between the respective undercarriages for tamping ballast in intermittent tamping cycles under respective ties at points of intersection of the two rails and the respective ties. A track lifting and lining unit is associated with the two rails mounted on the subframe ahead of the tamping heads and arranged on the subframe between the respective undercarriages.

Abstract: A mobile track leveling, lining and tamping machine has a machine frame supported on undercarriages for continuous movement in an operating direction, a power plant and operating controls carried by the machine frame, a tool carrier frame having a front end and a rear end, and an undercarriage supporting and guiding the tool carrier frame rear end on the track. Tamping tool assemblies are mounted on the tool carrier frame immediately ahead of the undercarriage supporting and guiding the tool carrier frame rear end for tamping ballast in intermittent tamping cycles under respective ties at points of intersection of the two rails and the ties in tangent and switch track sections and a track lifting and lining unit is associated with the two rails mounted on the tool carrier frame ahead of the tamping tool assemblies and is arranged on the tool carrier frame between two undercarriages spaced in the direction of the track for lifting and lining the track in tangent and switch track sections.

Abstract: In a method for automatically leveling a track comprised of two rails fastened to a succession of ties supported on a ballast bed to establish a desired track level, wherein successive track sections including a respective one of the ties are consecutively raised, additional track bed material is blown under each one of the raised ties to fill a gap between the ballast bed and each raised tie, and the raised track sections are lowered after the additional track bed material has been blown under the raised ties, the steps of measuring the existing track level at each tie to be raised and obtaining a corresponding parameter, establishing the difference between the parameter corresponding to the existing track level and a parameter corresponding to the desired track level, raising each successive track section above the desired track level, and controlling the amount of the additional track bed material blown under each raised tie at a point of intersection between the tie and a respective one of the rails in pr

Abstract: A mobile track leveling machine comprises a pneumatic arrangement for introducing additional ballast into a gap between a track bed and a lifted track, which includes a storage container for the ballast, a vertically adjustable pipe arranged to receive ballast from the storage container and to be immersed in the track bed alongside a longitudinal edge of a respective track tie, the pipe having a tapered end for ready penetration into the track bed and a flattened side defining an outlet for the additional ballast facing the longitudinal tie edge. Compressed air is delivered into the pipe for moving the additional ballast therethrough and out of the outlet.

Abstract: A continuously advancing rail grinding machine comprises a grinding tool head vertically and laterally adjustably arranged on a mounting linked to the machine frame. A drive is connected to the tool head for imparting thereto a continuously reciprocating working movement superimposed upon the working movement derived from the advancement of the machine along the track, the reciprocating working movement extending in a plane transverse to the track and over a range extending from an end point of the arcuate corner surface at the side surface of the rail head to at least one third of the periphery of the arcuate corner surface. The reciprocating working movement enables rapid and coarse removal of surface irregularities from the rail head.