Bwg Butzbacher Weichenbau Gmbh

Bwg Butzbacher Weichenbau Gmbh & Co. Kg

Bwg Gmbh & Co. Kg

Bwg Butzbacher Weichenbau Gmba

Sebastian Benenowski

Erich Nuding

Alfred Kais

Hans-Ulrich Dietze

Hubertus Hohne

Albrecht Demmig

Stefan Schmedders

Rudiger Ziethen

Burkhard Zillien

Ruediger Ziethen

Hubertus H Ohne

The invention relates to a cross frog ( ) for points and crossings, comprising a cross frog tip ( ) and wing rails ( ) and running rails ( ) situated either side of this point, each with a basic course ( ) aligned with a main or secondary track ( ). The aim of the invention is to reduce the wear around the cross frog tip without reconstructing the cross frog tip itself or the guard rails allocated thereto or realigning them in relation to each other. To this end, at least one of the running rails deviates from its basic course in the area of the cross frog tip, in such a way that the movement of a rail vehicle running through the main or secondary track is influenced through its wheel frame or bogie axle, away from the cross frog tip.

Cross frog

A superstructure arrangement for a track comprising a rail fastened to a securing device such as a ribbed plate which is disposed above a concrete sleeper, with an intermediate layer extending between the sleeper and the securing device. The rigidity of the intermediate layer is variable and rated so that at the maximum permissible stress in the rail, caused by bending under wheel lead, the elastic property changes to substantially non-elastic.

Superstructure construction

The invention relates to a track with rail track section (,) which differs from the usual basic layout. In order to check changes in track layout in a simple manner, the invention provides that the rail track section (,) has a cutout (,) running parallel to the basic layout in a longitudinal direction of the track. When the rail track section is placed parallel to the basic layout, the layout of said cutout is inversely the same as that of the desired change in layout.

Track or method for aligning a rail track section

An expansion joint for part of a railway track arranged on a foundation has a stock rail with a stock rail head and a tongue movable with respect to and along said stock rail head, upon which at least one fastening device acys for pressing it on the stock rail. This expansion joint enables the rail foot to be lingitudinally moved with little friction and excludes tipping of the stock rail or tongue. For that purpose, the tongue is not bolted, but pressed only against the stock rail by the fastening device, and the force thus transmitted is decomposed into components that act, on the other hand, in the direction of the foundation and, on the other hand, in the direction of the stock rail head. The force is transmitted by a rolling element extending from a shaft which is anchored to the foundation.

Expansion joint for part of a railway track

A method and device for the elastic bending of a support (16) with at least one bendable end (24), intended in particular for a flexible switch (10). To achieve an elastic line of a finite radius of curvature also at the free end of the support, a bending moment diverging from zero is generated in the elastically bendable end (24) of the support (14) by applying a force coupling to an auxiliary lever (28).

Method and means for the elastic bending of a support for a flexible

Bearing for a part of a railroad track

Rail support system

A rail junction (20) between rail lines (12, 14) extending in a direction parallel to each other for a car with a predetermined clear space profile, for a dual-track line of a high-speed magnetic train. Rail line (12) consists of line up supports (22, 24) and flexible support (16), rail line (14)consists of supports (28, 26) and flexible support (18), the flexible supports (16, 18) are elastically bent so that their ends (30, 32) are aligned for providing a rail connection. In order to permit a track change without changing the distance between the rail lines, the support (22, 26) adjoining the elastically bendable end (30, 32) of the bendable support (16, 18) is elastically bent outward away from the direction of the rails.

Rail junction

Rail section

A roller assembly for a rail switch tongue used with a stock rail exhibiting reduced friction and resistance to vibration includes roller elements for supporting the switch tongue. Each roller element is supported by elastomer springs, one having a damping and the other having a supporting characteristic. The spring elements are mechanically coupled so that loading of the roller elements by the switch tongue causes a change in the spring length.

Roller assembly for a switch tongue used with a stock rail

To achieve low wear and hence a greater shape durability of track parts, it is proposed that the contact surface of a track part have a curvature having a constant difference .DELTA.K in relation to the curvature of the corresponding current contact surface of the wheel supported on it, or that successive contact surfaces of the track part and the wheel have a continually changing curvature difference .DELTA.K with the curvature difference between the contact surfaces of the track part and wheel lessening as the angle of contact tangent increases.

Contact surfaces of a track part and railway wheel

A device for locking a switch blade with a stock rail which includes a locking piece connected to the stock rail. The locking piece has an opening through which the longer leg of an L-shaped locking clamp extends. A switch element also extends through the opening and has an upper surface in contact with the longer leg of the L-shaped member which extends below the foot of the switch blade. The shorter leg has an end free to articulate with respect to a shaft. The shaft is further connected with a clamp receiver or clamp notch. The pivot axis of the clamp receiver member and shorter leg extends parallel with the switch blade and is positioned above the foot of the switch rail such that the clamp receiver member slopes downwardly between the shaft and connection point with the switch blade. This arrangement avoids tipping of the switch as the vertical force vector of the resultant vector passing through the contacting surface of the switching element and first leg intersects the switch blade rail foot on a supporting base immediately adjacent to the switch blade rail foot.

Device for locking a switch blade

A device for locking a switch blade (10, 12) with a stock rail (14, 16) is proposed, whereby the switch blade is held down on a supporting surface only when it is in locked and unlocked positions. When the switch blade (10, 12) is in the locked position it is acted upon by a resultant force (53) that prevents both a rotation of the switch blade and its rising up.

Growing community of inventors

Butzbach, Germany

Sebastian Benenowski