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EP0027983A1 - Rail with drilled holes for the supply of lubricants - Google Patents

Rail with drilled holes for the supply of lubricants Download PDF

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Publication number
EP0027983A1
EP0027983A1 EP80106365A EP80106365A EP0027983A1 EP 0027983 A1 EP0027983 A1 EP 0027983A1 EP 80106365 A EP80106365 A EP 80106365A EP 80106365 A EP80106365 A EP 80106365A EP 0027983 A1 EP0027983 A1 EP 0027983A1
Authority
EP
European Patent Office
Prior art keywords
rail
bore
line
lubricant
outlet end
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.)
Granted
Application number
EP80106365A
Other languages
German (de)
French (fr)
Other versions
EP0027983B1 (en
Inventor
Andreas Radermacher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT80106365T priority Critical patent/ATE3835T1/en
Publication of EP0027983A1 publication Critical patent/EP0027983A1/en
Application granted granted Critical
Publication of EP0027983B1 publication Critical patent/EP0027983B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
    • B61K3/00—Wetting or lubricating rails or wheel flanges

Definitions

  • the innovation relates to a travel rail with bores connected via lines to a lubricant pump for supplying lubricant to the flank surfaces of the rail which are subject to wear due to travel operation.
  • the rails in the area to be lubricated are provided with bores which have their outlet end in the section to be lubricated and extend obliquely downward from there.
  • a feed line for the lubricant is then connected to the lower end of these bores via a threaded screw connection. It is therefore necessary to drill correspondingly inclined bores in the rail heads and also to provide these bores with threads in their lower region in order to enable a connection to the feed line.
  • the object of the present innovation is now to eliminate the deficiencies described in a travel rail of the type mentioned at the outset and to specify a travel rail which enables a reliably dense supply of lubricant to the surfaces to be lubricated with relatively little processing effort.
  • each line has a permanently elastic material at least at the end connected in each case with a borehole and, lying against the wall of the borehole, extends through the borehole essentially to its outlet end and in that a metal nipple provided with a passage is pressed into the end of the line from the outlet end of the bore.
  • This rail is therefore only to be processed in such a way that holes are made in the rail head. This can easily be done on the rail when installed.
  • a teaching is expediently used for this purpose, which ensures secure mounting and alignment of the drilling device. After introducing the permanently elastic line into the bore, a metal nipple is simply hammered into the line from the outlet end of the bore, which presses the line sealingly against the dumbbell surface of the bore and thus prevents lubricant from flowing back between the outer surface of the line and the jacket of the bore . This work only takes a short amount of time.
  • the metal nipple has at least one conical surface on its outer circumference, which tapers counter to the conveying direction of the lubricant.
  • the metal nipple leads to a certain wedging of the end section of the line in the bore and thus to a particularly secure and tight fit.
  • the innovation provides that the entire line is made of a permanently elastic, oil-resistant rubber.
  • the travel rail 1 shown in the figures has a head section 2, a web 3 and a foot section 4.
  • a holding rail 6 which among other things carries a metering device 7, which is coupled to a distributor 9 via a line 8.
  • the distributor 9 has three line connections 10, each of which has a line 11 made of permanently elastic material.
  • bores 12 at a distance from one another which emanate from a wear-stressed inner flank surface 13 of the rail 1 and which are inclined downwards.
  • the undore end of these bores 12 lies on the side of the retaining clip 6.
  • the diameter of the bores 12 essentially corresponds to the outer diameter of the lines 11.
  • a metal nipple 14 is inserted into the end of the lines 11, which is adjacent to the flank surface 13, which has at least one, in the exemplary embodiment shown three cone surfaces 15.
  • This nipple 14 has a passage 16. It presses the wall of the line 11 against the mandrel of the bore 12, so that a seal is also formed between the line 11 and the wall of the wall. It is therefore not possible for lubricant to flow back along the outer surface of the conduit 11 through the bore 12.
  • the end of the line 11 and the metal nipple 14 protruding approximately from the head section 2 can be ground or cut off.
  • the lines 11 preferably consist of a permanently elastic, oil-resistant rubber.
  • the permanent elasticity ensures that the wall of the lines 11 always remains pressed against the bore end with a certain tension and the sealing effect!:! maintained.
  • a rail 1 designed in this way came in a known tit to be provided with a collecting trough, not shown, for the sannels of approximately dripping seed material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Escalators And Moving Walkways (AREA)
  • Reciprocating Pumps (AREA)
  • Coating Apparatus (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

1. A rail with holes (12) connected to a lubricant pump by conduits (11) for supplying lubricants to the flank areas (13) of the rail subjected to wear by traffic, characterised in that each conduit (11) comprises a permanently elastic material at least at the end connected to a hole (12) and lies against the wall of the hole (12) to extend through the hole (12) substantially up to its outlet end, and that a metal nipple (14) provided with a through passage (16) is pressed into the end of the conduit (11) from the outlet end of the hole (12).

Description

Die Neuerung betrifft eine Fahrschiene mit über Leitungen mit einer Schmiermittelpumps verbundenen Bohrungen zur Zufuhr von Schmiermitteln zu den durch den Fahrbetrieb verschleißbeanspruchten Flankenflächen der Schiene.The innovation relates to a travel rail with bores connected via lines to a lubricant pump for supplying lubricant to the flank surfaces of the rail which are subject to wear due to travel operation.

Es ist bereits bekannt , zur verminderung des Seitenverschieißes an Fahrschiene und Rad sowie auch zur Geräuschdämpfung die seitlichen Berührungsflächen zwischen Schiene und Rad, insbesondere in Gleisbögen, zu schnieren. Zu diesem Zweck sind die Fahrschienen in dem zu schmierenden Bereich mit Bohrungen versehen, die in dem zu schmierenden Abschnitt ihr Austrittsende haben und sich von dort aus schräg nach unten erstrecken. An das untere Ende dieser Bohrungen ist dann über eine Gewindeverschraubung eine Zuführleitung für das Schmiermittel angeschlossen. Es ist dabei also erforderlich, in die Schienenköpfe entsprechend geneigte Bohrungen einzubringen und diese Bohrungen darüberhinaus in ihrem unteren Bereich mit Gewinde zu versehen, um einen Anschluß an der Zuführleitung zu ermöglichen. Es ist mit einem erheblichen Bearbeitungsaufwand verbunden, ein solches Gewinde anzufertigen, da diese Arbeiten in der Regel auf der Strecke durchgeführt werden müssen, nicht also in einer mechanischen Werkstatt mit den dort üblicherweise zur Verfügung stehenden Meschinen. Neben diesem erheblichen Bearbeitungsaufwand ist es bei den bisher verwendeten Fahrschienen mit Bohrungen zur Zufuhr eines Schmiermittels ferner nachteilig, daß im Bereich des Anschlusses zwischen Leitung und Bohrung Undichtigkeiten auftreten können, die z. B, dazu führen, daß Schmiermittel im Bereich der Gewindeverbindung ausfließt.It is already known to cut the lateral contact surfaces between the rail and the wheel, in particular in track arches, in order to reduce lateral wear on the running rail and wheel and also to reduce noise. For this purpose, the rails in the area to be lubricated are provided with bores which have their outlet end in the section to be lubricated and extend obliquely downward from there. A feed line for the lubricant is then connected to the lower end of these bores via a threaded screw connection. It is therefore necessary to drill correspondingly inclined bores in the rail heads and also to provide these bores with threads in their lower region in order to enable a connection to the feed line. It takes considerable processing time to produce such a thread, since this work generally has to be carried out on the route, not in a mechanical workshop with the machines usually available there. In addition to this considerable processing effort, it is also disadvantageous in the previously used rails with holes for supplying a lubricant that leaks can occur in the area of the connection between the line and the hole, which, for. B, cause lubricant to flow out in the area of the threaded connection.

Die Aufgabe der vorliegenden Neuerung besteht nun darin, bei einer Fahrschiene der eingangs erwähnten Art die beschriebenen Mängel zu beseitigen und eine Fahrschiene anzugeben, die bei relativ geringem Bearbeitungsaufwand eine zuverlässig dichte Zufuhr von Schmiermittel zu den zu schmierenden Flächen ermöglicht.The object of the present innovation is now to eliminate the deficiencies described in a travel rail of the type mentioned at the outset and to specify a travel rail which enables a reliably dense supply of lubricant to the surfaces to be lubricated with relatively little processing effort.

Diese Aufgabe wird erfindungsgemäß bei einer Fahrschiene der hier betroffenen Art dadurch gelöst, daß jede Leitung zumindest an dem jeweils mit einer Bohrung verbundenen Ende ein dauerelastisches Material aufweist und an der Wand der Bohrung anliegend durch die Bohrung hindurch im wesentlichen bis zu deren Austrittsende reicht und daß ein mit einem Durchlaß versehener Hetallnippel von den Austrittsende der Bohrung her in das Ende der Leitung eingepreßt ist.This object is achieved according to the invention in a running rail of the type concerned here in that each line has a permanently elastic material at least at the end connected in each case with a borehole and, lying against the wall of the borehole, extends through the borehole essentially to its outlet end and in that a metal nipple provided with a passage is pressed into the end of the line from the outlet end of the bore.

Diese Fahrschiene ist demzufolge nur in der Weise zu bearbeiten, daß Bohrungen in den Schienenkopf eingebracht werden. Dies kann ohne weiteres an der Schiene im eingebauten Zustand erfolgen. Zweckmäßigerweise wird dazu eine Lehre benutzt, die eine sichere Halterung und Ausrichtung des Bohrgeräts gewährleistet. Nach Einführung der dauerelastischen Leitung in die Bohrung wird in die Leitung lediglich von Austrittsende der Bohrung her ein Metallnippel eingeschlagen, der die Leitung dichtend an die Hantelfläche der Bohrung preßt und somit verhindert, daß zwischen der Mantelfläche der Leitung und dem Mantel der Bohrung Schmiermittel zurückfließen kam. Die Durchführung dieser Arbeiten erfordert nur einen geringen Zeitaufwand.This rail is therefore only to be processed in such a way that holes are made in the rail head. This can easily be done on the rail when installed. A teaching is expediently used for this purpose, which ensures secure mounting and alignment of the drilling device. After introducing the permanently elastic line into the bore, a metal nipple is simply hammered into the line from the outlet end of the bore, which presses the line sealingly against the dumbbell surface of the bore and thus prevents lubricant from flowing back between the outer surface of the line and the jacket of the bore . This work only takes a short amount of time.

Die Neuerung sieht ferner vor, daß der Metallnippel an seinem äußeren Umfang mindestens eine Konuafläche aufweist, die sich entgegen der Förderrichtung des Schmiermittels verjüngt. Eine solche Ausbildung des Metallnippels führt zu einem gewissen Verkeilen des Endabschnitts der Leitung in der Bohrung und damit zu einem besonders sicheren und dichten Sitz.The innovation further provides that the metal nipple has at least one conical surface on its outer circumference, which tapers counter to the conveying direction of the lubricant. Such a design of the metal nipple leads to a certain wedging of the end section of the line in the bore and thus to a particularly secure and tight fit.

Schließlich sieht die Neuerung noch vor, daß die gesamte Leitung aus einem dauerelastischen, älbeständigen Gummi gebildet ist.Finally, the innovation provides that the entire line is made of a permanently elastic, oil-resistant rubber.

Im folgenden Teil der Beschreibung wird nun eine Ausführungeform der neuerungagemäßen Fahrschiene anhand von Zeichnungen beschrieben. Es zeigt :

  • Fig. 1: eine Teilansicht auf eine erfindungsgemäß ausgebildete Fahrschiene mit Verteiler und Zumeβventil und
  • Fig. 2: einen Schnitt nach Linie II-II in Fig. 1.
In the following part of the description, an embodiment of the new rail is described with reference to drawings. It shows :
  • Fig. 1: a partial view of an inventive rail with distributor and metering valve and
  • 2 shows a section along line II-II in Fig. 1st

Die in den Figuren dargestellte Fahrschiene 1 hat einen Kopfabschnitt 2, einen Steg 3 und einen Fußabschnitt 4.The travel rail 1 shown in the figures has a head section 2, a web 3 and a foot section 4.

Hit dem Steg 3 ist mittels Schrauben 5, von denen nur eine dargestellt ist, eine Helteschiene 6 verschraubt, die unter anderem eine Zumeßvorrichtung 7 trägt, die über eine Leitung 8 mit einem Verteiler 9 gekoppelt ist. Der Verteiler 9 weist im dargestellten Ausführungabeispiel drei Leitungsamchlüsse 10 auf, von denen jeweils eine Leitung 11 aus dauerelastischem Material ausgeht.Hit the web 3 is screwed by means of screws 5, only one of which is shown, a holding rail 6, which among other things carries a metering device 7, which is coupled to a distributor 9 via a line 8. In the exemplary embodiment shown, the distributor 9 has three line connections 10, each of which has a line 11 made of permanently elastic material.

In dem Kopfabschnitt 2 der Fahrschlene 1 sind mit Abstand voneinander Bohrungen 12 vnrgesehm, die von einer verschleißbeansprmhten inneren Flankenfläche 13 der Fahcschiene 1 ausgehen und nach unten hin geneigt verlaufen. Das untore Ende dieser Bohrungen 12 liegt auf der Seite der Halteschlene 6. Der Durchmesser der Bohrungen 12 entspricht im wesentlichen dem Außmdurchmeser der Leitungen 11. Diese Leitungen 11 können demnach in die Duhrungen 12 eingesteckt werden. Die Mantelflächen der Leitungen 11 liegen dann an der Mand der Bohrungen 12 an.In the head section 2 of the carriage 1 there are bores 12 at a distance from one another which emanate from a wear-stressed inner flank surface 13 of the rail 1 and which are inclined downwards. The undore end of these bores 12 lies on the side of the retaining clip 6. The diameter of the bores 12 essentially corresponds to the outer diameter of the lines 11. These lines 11 can therefore be inserted into the openings 12. The lateral surfaces of the lines 11 then lie against the mandrel of the bores 12.

In das Ende der Leitungen ll, das der Flankenfläche 13 benachbart ist, wird ein Hetallnippel 14 eingesctUagen, der aindestens eine, im gezeigten Ausführungsbeispiel drei Konusflächen 15 aufweist. Dieser Nippel 14 hat einen Durchlaß 16. Er preßt die wandung der Leitung 11 gegen die Mandung der Bohrung 12, so daß eine Dichtung auch zwischen Leitung 11 und Bahrungawand entsteht. Es ist daher nicht möglich, daß Schniermittel an der Außenfläche der Leitung 11 entlang durch die Bohrung 12 zurückfließen kann. Nach dem Einschlagen des Hetailnippels 14 kann das etwa aus den Kopfabschnitt 2 vorstehende Ende der Leitung 11 sowie des Hetallnippols 14 abgeschliffen bzw. abgeschnitten worden.A metal nipple 14 is inserted into the end of the lines 11, which is adjacent to the flank surface 13, which has at least one, in the exemplary embodiment shown three cone surfaces 15. This nipple 14 has a passage 16. It presses the wall of the line 11 against the mandrel of the bore 12, so that a seal is also formed between the line 11 and the wall of the wall. It is therefore not possible for lubricant to flow back along the outer surface of the conduit 11 through the bore 12. After hammering in the metal nipple 14, the end of the line 11 and the metal nipple 14 protruding approximately from the head section 2 can be ground or cut off.

Die Leitungen 11 bestehen vorzugsweise aus einem dauerelastisehen, älbeständigen Guml. Die Dauerelaatizität stellt dabei sicher, daß die Wandung dar Leitungen 11 stets mit einer gewisaen Spannung gegen die Bohrungsnnd gedrückt bleibt und den Dichtungseffet!:! aufrechterhält.The lines 11 preferably consist of a permanently elastic, oil-resistant rubber. The permanent elasticity ensures that the wall of the lines 11 always remains pressed against the bore end with a certain tension and the sealing effect!:! maintained.

Eine derart ausgebildete Fahrschiene 1 kam in bekannter Meise mit einer nicht dargestellten Auffangrinne für dae Sanneln von etwa abtropfenden Sämlermittel versahen sein.A rail 1 designed in this way came in a known tit to be provided with a collecting trough, not shown, for the sannels of approximately dripping seed material.

Claims (3)

1. Fahrschiene mit über Leitungen mit einer Schmiermittelpumpe verbundenen Bohrungen zur Zufuhr von Schmiarmitteln zu den durch den Fahrbetrieb versch10ißbeenapruchtsn Flankenflächen der Schiene, dadurch gekennzeichnet, daß jede Leitung (11) zumindest an dsa jeveilx mit einer Bohrung (12) verbundenen Ende ein dauerelastisches Material aufweiet und an der Wand der Bohrung (12) anliegend durch die Bohrung (12) hindurch im wesentlichen bis zu deren Austrittsende reicht und daß ein mit einem Durchlaß (16) versehener Metallnippel (14) von dem Austrittssnde der Bohrung (12) her in das Ende der Leitung (11) eingepreßt ist.1. Travel rail with bores connected via lines to a lubricant pump for supplying lubricant to the flank surfaces of the rail which are worn by driving operation, characterized in that each line (11) has a permanently elastic material at least at the end connected to a bore (12) with a bore (12) and lying against the wall of the bore (12) through the bore (12) extends essentially to the outlet end thereof and that a metal nipple (14) provided with a passage (16) extends from the outlet end of the bore (12) into the end the line (11) is pressed. 2. Fahrschiene nach Anspruch 1, dadurch gekennzeichnet, daß der Metallnippel (14) an seinem äußeren Umfang mindestens eine Konusfläche (15) aufweist, die sich entgegen der Fördezrichtung des Schmiermittels verjüngt.2. Travel rail according to claim 1, characterized in that the metal nipple (14) has on its outer circumference at least one conical surface (15) which tapers against the direction of conveyance of the lubricant. 3. Fahrschiene nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die gesamte Leitung (11) aus einem dauerelastischen, ölbeständigen Gummi gebildet ist.3. Travel rail according to claim 1 or 2, characterized in that the entire line (11) is formed from a permanently elastic, oil-resistant rubber.
EP80106365A 1979-10-25 1980-10-20 Rail with drilled holes for the supply of lubricants Expired EP0027983B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80106365T ATE3835T1 (en) 1979-10-25 1980-10-20 RAIL WITH HOLES FOR SUPPLYING LUBRICANTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE7930282U 1979-10-25
DE19797930282U DE7930282U1 (en) 1979-10-25 1979-10-25 DRIVE RAIL WITH HOLES FOR THE SUPPLY OF LUBRICANTS

Publications (2)

Publication Number Publication Date
EP0027983A1 true EP0027983A1 (en) 1981-05-06
EP0027983B1 EP0027983B1 (en) 1983-06-22

Family

ID=6708557

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80106365A Expired EP0027983B1 (en) 1979-10-25 1980-10-20 Rail with drilled holes for the supply of lubricants

Country Status (3)

Country Link
EP (1) EP0027983B1 (en)
AT (1) ATE3835T1 (en)
DE (1) DE7930282U1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3618254A1 (en) * 1985-06-06 1987-01-08 Rolls Royce Plc DEVICE FOR WINDING A THREAD ON A MOLDED BODY
WO2005090139A3 (en) * 2004-03-23 2005-12-29 Bojan Pavcnik Method and device for reduction of corrugation of rails, of noise and of reduction of friction between wheel and rail
WO2018010001A1 (en) 2016-07-14 2018-01-18 L.B. Foster Rail Technologies, Corp. Rail port insert
WO2018021978A1 (en) * 2016-07-27 2018-02-01 Bojan PAVČNIK Rail head lubrication borehole and method for supplying of lubricant to rail head

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3736580A1 (en) * 1987-10-29 1989-05-18 Thyssen Ind Ag Umformtechnik BEAM TRACK BRAKE FOR BRAKING RAILWAYS
DE10315789C5 (en) * 2003-04-07 2011-01-13 Schreck-Mieves Gmbh Railway system with lubrication

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1800464A (en) * 1928-12-01 1931-04-14 Metz Emil George Rail-oiling device
US1883148A (en) * 1928-10-11 1932-10-18 Maintenance Equipment Company Wheel flange oiler
US1977755A (en) * 1930-05-08 1934-10-23 William H Foster Flange and rail lubricator
FR826394A (en) * 1936-09-08 1938-03-30 P & M Co England Ltd Device for lubricating railway tracks
US2272774A (en) * 1939-01-27 1942-02-10 John T Mcgarry Rail lubricator
US2272775A (en) * 1939-02-20 1942-02-10 John T Mcgarry Wheel flange and rail lubricator
US3051262A (en) * 1959-11-20 1962-08-28 Railroad Accessorics Corp Apparatus for reducing friction between railroad car wheels and rails
US3059724A (en) * 1959-07-01 1962-10-23 Gen Railway Signal Co Means for lubricating curved railroad track rails
CH381729A (en) * 1961-09-20 1964-09-15 P & M Co Limited Lubricant distribution device
GB2004955A (en) * 1977-09-30 1979-04-11 Swedish Rail System Ab Srs Method and apparatus for dispensing a working substance such as a lubricant
US4214647A (en) * 1978-02-24 1980-07-29 Lutts William M Automatic rail greasing apparatus

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1883148A (en) * 1928-10-11 1932-10-18 Maintenance Equipment Company Wheel flange oiler
US1800464A (en) * 1928-12-01 1931-04-14 Metz Emil George Rail-oiling device
US1977755A (en) * 1930-05-08 1934-10-23 William H Foster Flange and rail lubricator
FR826394A (en) * 1936-09-08 1938-03-30 P & M Co England Ltd Device for lubricating railway tracks
US2272774A (en) * 1939-01-27 1942-02-10 John T Mcgarry Rail lubricator
US2272775A (en) * 1939-02-20 1942-02-10 John T Mcgarry Wheel flange and rail lubricator
US3059724A (en) * 1959-07-01 1962-10-23 Gen Railway Signal Co Means for lubricating curved railroad track rails
US3051262A (en) * 1959-11-20 1962-08-28 Railroad Accessorics Corp Apparatus for reducing friction between railroad car wheels and rails
CH381729A (en) * 1961-09-20 1964-09-15 P & M Co Limited Lubricant distribution device
GB2004955A (en) * 1977-09-30 1979-04-11 Swedish Rail System Ab Srs Method and apparatus for dispensing a working substance such as a lubricant
US4214647A (en) * 1978-02-24 1980-07-29 Lutts William M Automatic rail greasing apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3618254A1 (en) * 1985-06-06 1987-01-08 Rolls Royce Plc DEVICE FOR WINDING A THREAD ON A MOLDED BODY
WO2005090139A3 (en) * 2004-03-23 2005-12-29 Bojan Pavcnik Method and device for reduction of corrugation of rails, of noise and of reduction of friction between wheel and rail
WO2018010001A1 (en) 2016-07-14 2018-01-18 L.B. Foster Rail Technologies, Corp. Rail port insert
US11155284B2 (en) 2016-07-14 2021-10-26 L.B. Foster Rail Technologies, Corp. Rail port insert
WO2018021978A1 (en) * 2016-07-27 2018-02-01 Bojan PAVČNIK Rail head lubrication borehole and method for supplying of lubricant to rail head

Also Published As

Publication number Publication date
EP0027983B1 (en) 1983-06-22
DE7930282U1 (en) 1980-04-10
ATE3835T1 (en) 1983-07-15

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