Bwg Butzbacher Weichenbau Gmbh

Bwg Gmbh & Co. Kg

Bwg Butzbacher Weichenbau Gmbh & Co. Kg

Bwg Butzbacher Weichenbau Gmba

Alfred Kais

Sebastian Benenowski

Erich Nuding

Hubertus Hohne

Hans-Ulrich Dietze

Albrecht Demmig

Stefan Schmedders

Gerhard Ratz

Walter Kunitz

Rudiger Ziethen

Burkhard Zillien

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

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

A process for manufacture of a railroad track part, in particular a large points part, with rail parts such as a frog point and connecting rails, and the track part obtained. The track part is made of materials of differing composition, one of which is a carbon steel and one of which is an austenitic manganese steel, which are connected by welding and are subsequently subjected to a joint heat treatment. To permit joining of the materials without negative effects on their properties, the parts are joined directly by electron beam welding or indirectly via an intermediate layer comprising a nickel-based alloy, the joined parts then being heated to a temperature T and held over a time t such that for the austenitic manganese steel, solution annealing takes place, and for the carbon steel, austenitizing takes place. The railroad track part is partially quenched after the holding time t at temperature T, such that the austenitic manganese steel is provided in an sustenitic structure and the carbon steel is in a mixed structure with at least bainite and pearlite contents.

Process for producing a permanent way component and such a component

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

Bearing for a part of a railroad track

Rail support system

Rail section

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.

Device for locking a switch blade with a stock rail

A frog tip that can be moved relative to the wing rail is proposed, in which the contact surfaces each curve away from the frog tip and the wing rails in a lengthwise direction.

Frog tip that can be shifted relative to the wing rails

A rail attachment device which allows for longitudinal displacement of a rail. The rail attachment device includes a first element fixedly supported to a ribbed plate and having a vertical arm extending essentially parallel to the longitudinal direction of the rail. The rail attachment device also includes a second element which is connected to the web of the stock rail. Connecting elements connect the first element to the second element so as to allow for longitudinal shifting of the stock rail and second element with respect to the first element fixed to the ribbed plate. In one embodiment, the second element includes a web-plate fixed to the web of the stock rail by a bolt and a plate-like element connected to the web-plate and having longitudinally extending slots. The connecting elements pass through holes formed in the vertical arm and through the elongated slots. The connecting elements are preferably pretensioned so as to have the plate-like element shift with respect to the vertical arm upon reaching a predetermined longitudinal force. A step arrangement between the plate-like element and vertical arm also prevents vertical shifting between the two.

Rail attaching device permitting longitudinal rail displacement

An arrangement is proposed for controlled guidance of a wheel axle (22) or of a bogie of a rail vehicle passing over points, whereby the wheel contact point (48, 50) is subjected to a controlled influence such that the wheel axle runs substantially vertical to the track longitudinal axis. The controlled influence of the wheel contact point can be exerted by, for example, the stock rail (32) veering away outwards in the area that the blade begins.

Growing community of inventors

Lich-Eberstadt, Germany

Alfred Kais