EP0502859B1 - Device for grinding rails - Google Patents
Device for grinding rails Download PDFInfo
- Publication number
- EP0502859B1 EP0502859B1 EP90916217A EP90916217A EP0502859B1 EP 0502859 B1 EP0502859 B1 EP 0502859B1 EP 90916217 A EP90916217 A EP 90916217A EP 90916217 A EP90916217 A EP 90916217A EP 0502859 B1 EP0502859 B1 EP 0502859B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rail
- grinding wheel
- wheel carrier
- guides
- grinding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
- E01B31/02—Working rail or other metal track components on the spot
- E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
- E01B31/17—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding
Definitions
- the invention relates to a device for grinding rails, in particular rail joints, with a grinding wheel which can be brought up to the rail profile and is held in a grinding wheel carrier, the grinding wheel carrier being displaceable in longitudinal guides which are supported on both sides of the grinding point on the rail and can be pivoted about the rail , and the longitudinal guides at both ends in transverse guides and are held at the same distance from the actual rail profile by means of supports resting on the rail, in particular rollers.
- the grinding wheel carrier is arranged on a frame mounted on the rail, which frame is also pivotable.
- the grinding wheel axis runs approximately transverse to the longitudinal axis of the rail and the grinding wheel driven by a motor can be moved by hand in the direction of the rail.
- the operator guides and swivels the frame when grinding according to his feeling, taking measurements in between. It is clear that such a device requires specialists to operate, and yet the results are very often unsatisfactory.
- US-A-3 566 546 describes a very complicated device through which the rails are passed and in which they are ground by means of grinding belts. Such a device is hardly useful for grinding rails that have already been laid.
- the present invention has set itself the goal of providing a device with which a rail can be ground faster and more uniformly than previously with less well-trained workers. This is achieved essentially by the fact that the transverse guides are guided in a curved path that runs essentially parallel to the ideal profile of the rail, so that the longitudinal guides pivot essentially around the respective centers of the radii of curvature of the ideal profile of the rail.
- the measures according to the invention have the effect that, on the one hand, the radii of the ideal profile and, on the other hand, the actual state on both sides of the grinding point are taken into account. There is therefore a smooth transition even in the case of rail joints in which two differently worn rails meet.
- the Uniformity of the transition is particularly important, however, because impacts on the wheels of the train traveling above it, in particular at the ever increasing speeds, are to be avoided.
- cam tracks for guiding the grinding wheel carrier are arranged on the uprights of a portal frame.
- the grinding wheel carrier in the cam tracks can be moved by hand, but the grinding wheel carrier in its cam tracks arranged on both sides is expediently movable by motor.
- the grinding wheel carrier is guided in the cam tracks via two cambered rollers, and each end of a pulling element guided via deflection rollers engages the associated roller carriers.
- the crowning of the rollers enables the grinding wheel carrier to be pivoted with respect to the longitudinal axis of the rail in those cases in which differently worn rails are present on both sides of the grinding point.
- roller carriers which in an expedient embodiment is designed as a toothed belt, enables the movement of the grinding wheel carrier in the cam tracks in a simple manner.
- two opposite deflecting rollers are expediently connected to one another via a shaft.
- a safe and easy-to-use support of the device is achieved according to a further feature of the invention in that a slightly conical seat is provided on both sides, the rail laterally encompassing seat, which are assigned two arms movable relative to each other like pliers, which are on the underside of the rail head attack.
- the regulating and control device of the device are expediently arranged in the horizontal spar of the portal frame. There they are protected on the one hand, but easily accessible on the other hand.
- FIG. 1 shows a view of a device placed on a rail transversely to the longitudinal axis of the rail
- FIG. 2 shows a view in the longitudinal direction of the rail on an enlarged scale compared to FIG. 1
- FIG. 3 also shows a section along the line III-III on an enlarged scale in Figure 1 and Figure 4, the area IV in Figure 1 on a greatly enlarged scale.
- a grinding wheel carrier 1 carries a cup-shaped grinding wheel 3 driven by an electric motor, the axis of which points at an angle to the longitudinal axis of the rail 5 that deviates somewhat from 90 °.
- the rail 5 is thus ground at point 6.
- the grinding wheel 3 is movable in the direction of its axis 4.
- the grinding wheel carrier 1 is displaceable in the longitudinal guides 8 along the rail 5.
- the longitudinal guides 8 have four guide rods 9 and two side cover plates 10 connected to them.
- End plates 11, which are provided with bearings 12, are arranged at both ends of the cover plates 10.
- the bearings 12 include transverse guides 13 which are held by a plate 14.
- a roller 16 is mounted on an extension 15 of each end plate 11. Both rollers 16 rest on the rail 5.
- Two cambered rollers 17 are mounted on each plate 14, which roll in guides 18.
- the guides 18 run parallel to the ideal profile of the rail 5, i.e. the centers of the radii of curvature of the rail profile and the curved path coincide at least essentially.
- the plate 14 acting as a roller carrier is provided with pins 19, each of which engages the end of a toothed belt 20 which is guided over deflection rollers 21.
- the cam tracks 18 are provided in the uprights 24 of a portal frame, the horizontal bar 25 of which on the one hand ensures the stability of the device and on the other hand accommodates the motor 23, the shaft 22 and the control and regulating devices 26 of the device.
- a slightly conical seat 27 is provided on both sides, which surrounds the rail 5 on the side.
- This seat 27 is assigned two arms 28 which can be moved in a pincer-like manner and engage the underside of the rail head (FIG. 2).
- the arms 28 are moved by a spindle drive 29.
- arms 30 are articulated on the uprights 24, which carry a rail roller 31 at one end. If the device is to be moved on the rail, the arms 30 are pivoted towards the uprights 24, so that the device is lifted off the rail and the entire device can be moved. The arms 30 are locked with lugs 32 of the portal frame.
- the procedure is as follows: The portal frame 24, 25 is fixed on a rail 5 on both sides of the grinding point 6 by placing it on the seat 27 and pivoting the arms 28 and the grinding wheel carrier 1 is moved along the rail by hand or by motor (not shown). From time to time, the toothed belt 20 is then moved by actuating the motor 23 and the grinding wheel carrier 1 is thus pivoted along the curved path 18. However, according to the possible guidance in the transverse guides 13, the rollers 16 are always on the actual one. Profile of the rail 5 on. A stepless transition between the rail profile on the left and the rail profile on the right of the respective processing point 6 can thus be created, wherein, according to the curved path 18, it is possible to approach the ideal rail profile to a large extent.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Vorrichtung zum Schleifen von Schienen, insbesondere Schienenstößen, mit einer an das Schienenprofil heranführbaren, in einem Schleifscheibenträger gehaltenen Schleifscheibe, wobei der Schleifscheibenträger in Längsführungen verschiebbar ist, die beidseits der Schleifstelle an der Schiene abgestützt und um die Schiene schwenkbar sind, sowie die Längsführungen an ihren beiden Enden in Querführungen geführt und mittels an der Schiene anliegenden Auflagen, insbesondere Rollen, im gleichen Abstand vom tatsächlichen Schienenprofil gehalten sind.The invention relates to a device for grinding rails, in particular rail joints, with a grinding wheel which can be brought up to the rail profile and is held in a grinding wheel carrier, the grinding wheel carrier being displaceable in longitudinal guides which are supported on both sides of the grinding point on the rail and can be pivoted about the rail , and the longitudinal guides at both ends in transverse guides and are held at the same distance from the actual rail profile by means of supports resting on the rail, in particular rollers.
Bei, z. B. aus der GB-A- 1 325 587, bekannten Vorrichtungen zum Schleifen von Schienen ist der Schleifscheibenträger auf einem auf der Schiene aufgesetzten Gestell angeordnet, wobei dieses Gestell auch verschwenkbar ist. Die Schleifscheibenachse verläuft etwa quer zur Schienenlängsachse und die von einem Motor angetriebene Schleifscheibe ist in Richtung zur Schiene hin von Hand aus bewegbar. Der Bedienende führt und schwenkt das Gestell beim Schleifen entsprechend seinem Gefühl, wobei zwischendurch Messungen vorgenommen werden. Es ist klar, daß eine solche Vorrichtung Spezialisten zur Bedienung benötigt und trotzdem die Ergebnisse sehr oft unbefriedigend sind.At, e.g. B. from GB-A-1 325 587, known devices for grinding rails, the grinding wheel carrier is arranged on a frame mounted on the rail, which frame is also pivotable. The grinding wheel axis runs approximately transverse to the longitudinal axis of the rail and the grinding wheel driven by a motor can be moved by hand in the direction of the rail. The operator guides and swivels the frame when grinding according to his feeling, taking measurements in between. It is clear that such a device requires specialists to operate, and yet the results are very often unsatisfactory.
In der US-A-3 566 546 ist eine sehr kompliziert aufgebaute Vorrichtung beschrieben, durch die die Schienen durchgeführt und in der sie mittels Schleifbändern geschliffen werden. Eine solche Vorrichtung ist zum Schleifen von bereits verlegten Schienen kaum brauchbar.US-A-3 566 546 describes a very complicated device through which the rails are passed and in which they are ground by means of grinding belts. Such a device is hardly useful for grinding rails that have already been laid.
Aus der FR-A-1 231 751 ist eine Vorrichtung der eingangs genannten Art bekannt geworden, mit der angestrebt wird, die Schiene so zu schleifen, daß sie ihr Originalprofil erhält. Mit der bekannten Vorrichtung ist dies jedoch nicht möglich; das mit Hilfe eines Zahnkranzes und einer Zahnstange erzeugte Profil wäre nämlich kreisförmig.From FR-A-1 231 751 a device of the type mentioned at the outset has become known with which the aim is to grind the rail so that it maintains its original profile. However, this is not possible with the known device; the profile created with the aid of a ring gear and a toothed rack would be circular.
Die vorliegende Erfindung hat es sich zum Ziel gesetzt, eine Vorrichtung zu schaffen, mit der mit weniger gut geschulten Arbeitskräften eine Schiene schneller und gleichmäßiger als bisher zu schleifen ist. Erreicht wird dies im wesentlichen dadurch, daß die Querführungen in einer zum Idealprofil der Schiene im wesentlichen parallel verlaufenden Kurvenbahn geführt sind, sodaß die Längsführungen im wesentlichen um die jeweiligen Mittelpunkte der Krümmungsradien des Idealprofiles der Schiene verschwenken.The present invention has set itself the goal of providing a device with which a rail can be ground faster and more uniformly than previously with less well-trained workers. This is achieved essentially by the fact that the transverse guides are guided in a curved path that runs essentially parallel to the ideal profile of the rail, so that the longitudinal guides pivot essentially around the respective centers of the radii of curvature of the ideal profile of the rail.
Durch die erfindungsgemäßen Maßnahmen wird bewirkt, daß einerseits die Radien des Idealprofiles, andererseits der tatsächliche Zustand auf beiden Seiten der Schleifstelle berücksichtigt werden. Es kommt daher auch bei Schienenstößen, bei denen zwei unterschiedlich abgenützte Schienen aneinander stoßen, zu einem gleichmäßigen Übergang. Die Gleichmäßigkeit des Überganges ist aber besonders wichtig, weil Stöße auf die Räder des darüber fahrenden Zuges, insbesondere bei den immer höher werdenden Geschwindigkeiten, vermieden werden sollen.The measures according to the invention have the effect that, on the one hand, the radii of the ideal profile and, on the other hand, the actual state on both sides of the grinding point are taken into account. There is therefore a smooth transition even in the case of rail joints in which two differently worn rails meet. The Uniformity of the transition is particularly important, however, because impacts on the wheels of the train traveling above it, in particular at the ever increasing speeds, are to be avoided.
Eine besonders kompakte und in sich steife Vorrichtung ergibt sich, wenn die Kurvenbahnen zur Führung des Schleifscheibenträgers an den Stehern eines Portalrahmens angeordnet sind.A particularly compact and inherently rigid device is obtained if the cam tracks for guiding the grinding wheel carrier are arranged on the uprights of a portal frame.
Die Verschiebung der Schleifscheibenträger in den Kurvenbahnen kann von Hand aus erfolgen, zweckmäßig ist jedoch der Schleifscheibenträger in seinen beidseitig angeordneten Kurvenbahnen motorisch verschiebbar.The grinding wheel carrier in the cam tracks can be moved by hand, but the grinding wheel carrier in its cam tracks arranged on both sides is expediently movable by motor.
Bei einer bevorzugten Ausführungsform der Erfindung erfolgt die Führung des Schleifscheibenträgers in den Kurvenbahnen über je zwei bombierte Rollen und an den zugehörigen Rollenträgem greift jedes Ende eines über Umlenkrollen geführten Zugorganes an. Die Bombierung der Rollen ermöglicht ein Schwenken des Schleifscheibenträgers in bezug auf die Schienenlängsachse in jenen Fällen, in denen beidseits der Schleifstelle verschieden abgenützte Schienen vorhanden sind. Durch die Verwendung von zwei Rollen wird auf einfache Weise erreicht, daß die Achse der Schleifscheibe im wesentlichen immer zum Mittelpunkt des jeweiligen Radius des Idealprofiles hinweist.In a preferred embodiment of the invention, the grinding wheel carrier is guided in the cam tracks via two cambered rollers, and each end of a pulling element guided via deflection rollers engages the associated roller carriers. The crowning of the rollers enables the grinding wheel carrier to be pivoted with respect to the longitudinal axis of the rail in those cases in which differently worn rails are present on both sides of the grinding point. By using two rollers it is easily achieved that the axis of the grinding wheel essentially always points to the center of the respective radius of the ideal profile.
Die Verwendung eines an den Rollenträgern angreifenden Zugorganes, das bei einer zweckmäßigen Ausführungsform als Zahnriemen ausgebildet ist, ermöglicht auf einfache Weise die Bewegung des Schleifscheibenträgers in den Kurvenbahnen.The use of a pulling element acting on the roller carriers, which in an expedient embodiment is designed as a toothed belt, enables the movement of the grinding wheel carrier in the cam tracks in a simple manner.
Zur Synchronisation der Bewegung in beiden Kurvenbahnen sind zweckmäßig zwei gegenüberliegende Umlenkrollen über eine Welle miteinander verbunden.In order to synchronize the movement in both cam tracks, two opposite deflecting rollers are expediently connected to one another via a shaft.
Eine sichere und einfach zu handhabende Abstützung der Vorrichtung wird nach einem weiteren Merkmal der Erfindung dadurch erreicht, daß beidseitig je ein leicht konischer, die Schiene seitlich umfassender Sitz vorgesehen ist, dem zwei relativ zueinander zangenartig bewegbare Arme zugeordnet sind, die an der Unterseite des Schienenkopfes angreifen.A safe and easy-to-use support of the device is achieved according to a further feature of the invention in that a slightly conical seat is provided on both sides, the rail laterally encompassing seat, which are assigned two arms movable relative to each other like pliers, which are on the underside of the rail head attack.
Die Regel- und Steuereinrichtung der Vorrichtung sind zweckmäßig im waagrechten Holm des Portalrahmens angeordnet. Dort sind sie einerseits geschützt, anderseits aber leicht zugänglich.The regulating and control device of the device are expediently arranged in the horizontal spar of the portal frame. There they are protected on the one hand, but easily accessible on the other hand.
Nachstehend ist die Erfindung an Hand eines in den Zeichnungen dargestellten Ausführungsbeispieles näher beschrieben, ohne jedoch auf dieses Beispiel beschränkt zu sein. Dabei zeigen: Fig.1 die Ansicht einer auf eine Schiene aufgesetzten Vorrichtung quer zur Schienenlängsachse, Fig.2 in einem gegenüber der Fig.1 vergrößertem Maßstab eine Ansicht in Schienenlängsrichtung, Fig.3 ebenfalls in vergrößertem Maßstab einen Schnitt längs der Linie III-III in Fig.1 und Fig.4 den Bereich IV in Fig.1 in stark vergrößertem Maßstab.The invention is described in more detail below on the basis of an exemplary embodiment shown in the drawings, but without being restricted to this example. 1 shows a view of a device placed on a rail transversely to the longitudinal axis of the rail, FIG. 2 shows a view in the longitudinal direction of the rail on an enlarged scale compared to FIG. 1, FIG. 3 also shows a section along the line III-III on an enlarged scale in Figure 1 and Figure 4, the area IV in Figure 1 on a greatly enlarged scale.
Ein Schleifscheibenträger 1 trägt eine von einem Elektromotor angetriebene topfförmige Schleifscheibe 3, deren Achse unter einem etwas von 90° abweichenden Winkel zur Längsachse der Schiene 5 weist. Die Schiene 5 wird somit an der Stelle 6 geschliffen. Über ein Handrad 7 od.dgl. ist die Schleifscheibe 3 in Richtung ihrer Achse 4 bewegbar.A
Der Schleifscheibenträger 1 ist in Längsführungen 8 längs der Schiene 5 verschiebbar. Im gezeichneten Beispiel weisen die Längsführungen 8 vier Führungsstangen 9 sowie zwei damit verbundene seitliche Abdeckplatten 10 auf. An beiden Enden der Abdeckplatten 10 sind Endplatten 11 angeordnet, die mit Lagern 12 versehen sind. Die Lager 12 umfassen Querführungen 13, die von einer Platte 14 gehalten sind.The
An einem Fortsatz 15 jeder Endplatte 11 ist eine Rolle 16 gelagert. Beide Rollen 16 liegen auf der Schiene 5 auf.A
Auf jeder Platte 14 sind zwei bombierte Rollen 17 gelagert, die in Führungen 18 abrollen. Die Führungen 18 verlaufen parallel zum Idealprofil der Schiene 5, d.h. die Mittelpunkte der Krümmungsradien des Schienenprofiles und der Kurvenbahn fallen zumindestens im wesentlichen zusammen.Two cambered
Die als Rollenträger wirkende Platte 14 ist mit Zapfen 19 versehen, an denen je das Ende eines Zahnriemens 20 angreift, der über Umlenkrollen 21 geführt ist. Eine Gelenkwelle 22, die über einen Motor 23 drehbar ist, verbindet die beiden obersten gegenüberliegenden Umlenkrollen 21.The
Die Kurvenbahnen 18 sind in den Stehern 24 eines Portalrahmens vorgesehen, dessen waagrechter Holm 25 einerseits die Stabilität der Vorrichtung gewährleistet, anderseits den Motor 23, die Welle 22 sowie die Steuer- und Regeleinrichtungen 26 der Vorrichtung aufnimmt.The
Zur Festlegung der Vorrichtung an der Schiene 5 ist beidseitig je ein leicht konischer, die Schiene 5 seitlich umfassender Sitz 27 vorgesehen, diesem Sitz 27 sind zwei zueinander zangenartig bewegbare Arme 28 zugeordnet, die an der Unterseite des Schienenkopfes (Fig.2) angreifen. Die Bewegung der Arme 28 erfolgt über einen Spindeltrieb 29.To fix the device on the
Um die Vorrichtung auf der Schiene von Bearbeitungsstelle zu Bearbeitungsstelle verfahren zu können, sind an den Stehern 24 Arme 30 angelenkt, die an ihrem einen Ende eine Schienenrolle 31 tragen. Soll die Vorrichtung auf der Schiene verfahren werden, werden die Arme 30 zu den Stehern 24 hin verschwenkt, sodaß die Vorrichtung von der Schiene abgehoben wird und die gesamte Vorrichtung verfahren werden kann. Die Arme 30 werden dabei mit Ansätzen 32 des Portalrahmens verriegelt.In order to be able to move the device on the rail from processing point to processing point,
Bei der Bearbeitung einer Schiene 5 wird wie folgt vorgegangen:
Der Portalrahmer 24,25 wird auf einer Schiene 5 beidseits der Schleifstelle 6 durch Aufsetzen auf den Sitz 27 und Verschwenken der Arme 28 festgelegt und der Schleifscheibenträger 1 von Hand aus oder motorisch (nicht dargestellt) längs der Schiene verschoben. Von Zeit zu Zeit wird dann durch Betätigen des Motors 23 der Zahnriemen 20 bewegt und damit der Schleifscheibenträger 1 entlang der Kurvenbahn 18 verschwenkt. Dabei liegen jedoch die Rollen 16 zufolge der möglichen Führung in den Querführungen 13 jederzeit auf dem tatsächlicher. Profil der Schiene 5 auf. Es kann somit ein stufenloser Übergang zwischen dem Schienenprofil links und dem Schienenprofil rechts der jeweiligen Bearbeitungsstelle 6 geschaffen werden, wobei zufolge der Kurvenbahn 18 eine weitgehende Annäherung an das ideale Schienenprofil möglich ist.When machining a
The
Claims (8)
- Device for grinding rails, in particular rail joints, with a grinding wheel (3) that can be advanced towards the rail joint and is held by a grinding wheel carrier (1); the grinding wheel carrier (1) moving in longtitudinal guides (8) which rest against the rail (5) at both sides of the grinding point and can be swung around the rail (5); the longitudinal guides (8) moving in transversal guides (13) at their ends and being kept at the same distance from the actual rail section by means of supports, in particular rollers (16), resting against the rail (5), characterized in that the transversal guides (13) follow a curved path (18) which runs largely parallel to the ideal rail (5) section so that the longitudinal guides (8) are mainly swung around the respective centres of the bending radiuses of the ideal rail (5) section.
- Device according to claim 1, characterized in that the curved paths (18) for guiding the grinding wheel carrier (1) are arranged on the posts (24) of a frame.
- Device according to claims 1 or 2, characterized in that the grinding wheel carrier (1) can be displaced in its curved paths (18) on both sides by means of a motor.
- Device according to one of the claims 1 to 3, characterized in that the grinding wheel carrier (1) is guided in the curved paths (18) by means of two cambered rollers (17) each and engages with the corresponding roller carriers (14) at the end of a traction element (20), guided over deflection pulleys (21).
- Device according to claim 4, characterized in that the traction element is a toothed belt.
- Device according to claim 4 or 5, characterized in that two opposing deflection pulleys (21) are connected by means of a shaft (22).
- Device according to one of the claims 1 to 6, characterized in that a slightly conical seat (27) laterally embracing the rail is provided on each side to support the device; two arms (28) with tong-like interaction, which engage at the bottom of the rail head, are provided for this seat (28).
- Device according to one of the claims 2 to 7, characterized in that the automatic control system (26) of the device is situated in the horizontal branch (25) of the frame.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT2710/89 | 1989-11-27 | ||
| AT271089 | 1989-11-27 | ||
| PCT/AT1990/000108 WO1991008343A1 (en) | 1989-11-27 | 1990-11-07 | Grinding device for honing rails |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0502859A1 EP0502859A1 (en) | 1992-09-16 |
| EP0502859B1 true EP0502859B1 (en) | 1994-08-17 |
Family
ID=3539079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90916217A Expired - Lifetime EP0502859B1 (en) | 1989-11-27 | 1990-11-07 | Device for grinding rails |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0502859B1 (en) |
| AT (1) | ATE110132T1 (en) |
| CZ (1) | CZ279003B6 (en) |
| DE (1) | DE59006853D1 (en) |
| WO (1) | WO1991008343A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5359815A (en) * | 1992-11-06 | 1994-11-01 | Harsco Corporation | Profile grinder |
| FR2742775B1 (en) * | 1995-12-20 | 1998-02-13 | Sud Ouest Travaux | MACHINE TOOL FOR MECHANICAL INTERVENTION ON A RAILWAY RAIL |
| AT406971B (en) * | 1996-06-24 | 2000-11-27 | P C Wagner Elektro Thermit Sch | Device for grinding a rail head profile |
| GB0401403D0 (en) * | 2004-01-22 | 2004-02-25 | Balfour Beatty Plc | Rail joint grinding |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1231751A (en) * | 1959-04-13 | 1960-10-03 | Railroad Track Grinding Machine | |
| US3566546A (en) * | 1966-11-21 | 1971-03-02 | Chemetron Corp | Apparatus for grinding welded rail |
| GB1325587A (en) * | 1970-10-28 | 1973-08-01 | Permanent Way Equip | Rail grinding machine assembly |
-
1990
- 1990-11-07 AT AT90916217T patent/ATE110132T1/en not_active IP Right Cessation
- 1990-11-07 EP EP90916217A patent/EP0502859B1/en not_active Expired - Lifetime
- 1990-11-07 WO PCT/AT1990/000108 patent/WO1991008343A1/en active IP Right Grant
- 1990-11-07 DE DE59006853T patent/DE59006853D1/en not_active Expired - Fee Related
- 1990-11-22 CZ CS905804A patent/CZ279003B6/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CZ279003B6 (en) | 1994-11-16 |
| CZ580490A3 (en) | 1994-05-18 |
| EP0502859A1 (en) | 1992-09-16 |
| WO1991008343A1 (en) | 1991-06-13 |
| ATE110132T1 (en) | 1994-09-15 |
| DE59006853D1 (en) | 1994-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0648895A2 (en) | Rail grinding machine | |
| DE2832095A1 (en) | DRIVE AND TRAVELING DEVICE FOR A BRIDGE SUPPORTED ON TWO GUIDE RAILS AND ONE OR MORE CARRIAGES ARRANGED ON THIS | |
| DE2316615A1 (en) | AUTOMATIC TRANSPORT DEVICE | |
| WO2010015311A1 (en) | Method and device for replacing belt rollers on preferably open conveyor belt systems | |
| EP0602308B1 (en) | Device for working the side edges of continuously fed panel shaped workpieces | |
| EP0222728B1 (en) | Apparatus for producing prismatic or pyramidal logs | |
| EP0502859B1 (en) | Device for grinding rails | |
| DE3100159A1 (en) | Transport apparatus for a flow-production line | |
| DE3122849C2 (en) | ||
| EP0518103B1 (en) | Device for pulling elongated profiles | |
| WO1995022498A1 (en) | Device for releasing a product from a continuously circulating belt | |
| DE3436576A1 (en) | LOADING AND REMOVAL DEVICE, ESPECIALLY ON PRESSES | |
| EP0371328A2 (en) | Method of and device for grinding the upper surfaces and/or the guide surfaces of rails or like | |
| DE2839330A1 (en) | DEVICE FOR CHANGING THE DIRECTION OF AN OBJECT TO BE TRANSPORTED | |
| DE2840974A1 (en) | ENDLESS LINK CHAIN FOR THE TRANSPORT OF OBJECTS IN A MACHINING SYSTEM WITH CONTINUOUSLY OPERATING KINEMATICS | |
| DE19749458A1 (en) | Profile cutting machine, especially for foamed material | |
| DE19845836A1 (en) | Device for distribution of loose products to several continuing conveyor lines has diversion element pivoting between stop elements by means of movement impulse produced by reversal of direction of rotation of diversion belt | |
| DE2547041B2 (en) | Method for grinding railroad tracks | |
| DE3118505A1 (en) | Wire-rope stone-cutting saw | |
| DE4038387C2 (en) | ||
| DE4124763C2 (en) | ||
| WO1987006564A1 (en) | Conveyor for transporting work-pieces | |
| DE4342843A1 (en) | Machining system for rails and guides of mono-rail installations | |
| EP0690015A1 (en) | Conveyor line | |
| DE3729807C2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 19911121 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE |
|
| 17Q | First examination report despatched |
Effective date: 19930108 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT Effective date: 19940817 Ref country code: NL Effective date: 19940817 Ref country code: FR Effective date: 19940817 Ref country code: DK Effective date: 19940817 Ref country code: GB Effective date: 19940817 Ref country code: ES Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19940817 Ref country code: BE Effective date: 19940817 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19940817 |
|
| REF | Corresponds to: |
Ref document number: 110132 Country of ref document: AT Date of ref document: 19940915 Kind code of ref document: T |
|
| REF | Corresponds to: |
Ref document number: 59006853 Country of ref document: DE Date of ref document: 19940922 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19941117 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19941130 |
|
| EN | Fr: translation not filed | ||
| NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
| GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] |
Effective date: 19940817 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19961030 Year of fee payment: 7 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 19961127 Year of fee payment: 7 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19971107 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19971130 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19971130 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19971201 Year of fee payment: 8 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990901 |