EP1612330B1 - Spike puller - Google Patents

Spike puller Download PDF

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Publication number
EP1612330B1
EP1612330B1 EP05003012A EP05003012A EP1612330B1 EP 1612330 B1 EP1612330 B1 EP 1612330B1 EP 05003012 A EP05003012 A EP 05003012A EP 05003012 A EP05003012 A EP 05003012A EP 1612330 B1 EP1612330 B1 EP 1612330B1
Authority
EP
European Patent Office
Prior art keywords
clamping device
supporting leg
machine
track
clamping
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.)
Not-in-force
Application number
EP05003012A
Other languages
German (de)
French (fr)
Other versions
EP1612330A3 (en
EP1612330A2 (en
Inventor
Otto Widlroither
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.)
Robel Bahnbaumaschinen GmbH
Original Assignee
Robel Bahnbaumaschinen GmbH
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 Robel Bahnbaumaschinen GmbH filed Critical Robel Bahnbaumaschinen GmbH
Publication of EP1612330A2 publication Critical patent/EP1612330A2/en
Publication of EP1612330A3 publication Critical patent/EP1612330A3/en
Application granted granted Critical
Publication of EP1612330B1 publication Critical patent/EP1612330B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C11/00—Nail, spike, and staple extractors
    • B25C11/02—Pincers
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
    • E01B29/24—Fixing or removing detachable fastening means or accessories thereof; Pre-assembling track components by detachable fastening means
    • E01B29/26—Fixing or removing detachable fastening means or accessories thereof; Pre-assembling track components by detachable fastening means the fastening means being spikes

Definitions

  • the invention relates to a Nagelziehmaschine for pulling rail nails from sleepers of a track, with a trained to rest on a nail head gripping elements clamping device, wherein a clamping drive for the movement of the gripping elements and a height adjustment is provided for the height adjustment of the clamping device.
  • US-A-3,883,118 describes such a nail-drawing machine in the form of a railway vehicle which can be moved under its own drive.
  • the arranged on both sides of a rail clamping devices have gripping tongs whose distance from each other in the rail longitudinal direction corresponds approximately to the length of a threshold plate.
  • An operator sitting on the machine need only position the clamping device approximately above the point of use in order to automatically grasp and extract a nail located in this threshold plate area.
  • DE 19 35 427 A1 discloses a hand-movable device for pulling feather nails. These each have a loop into which a - on one side open - pulling hook is inserted to pull the spring nail from the threshold. The threading of the hook is done by manually moving and pivoting the device positioned over the relevant rail.
  • EP 1 041 202 A1 Another machine is through EP 1 041 202 A1 known in which the pincer-shaped gripping elements are pulled up in a cylindrical tube and thereby automatically moved for detecting the nail head to each other.
  • this has the disadvantage that deformed nail heads or those of other types are difficult or impossible to detect.
  • the object of the present invention is now to provide a machine of the generic type with improved operability and at the same time compact design.
  • An in Fig. 1 shown Nagelziehmaschine 1 has a track frame rollers 2 on a track 3 movable machine frame 4 with a motor 5 and a hydraulic system 6. At an end remote from the engine 5 operating handles 7 are provided with control devices 8.
  • the machine frame 4 is mounted on a carriage 10 so as to be pivotable about an axis 9 running in the transverse direction of the track. This is in turn displaceable on a chassis frame 11 in the transverse direction of the track.
  • a tool carrier 12 which is attached to the machine frame 4 pivotable about an axis 13.
  • the axis 13 extends with respect to a track plane 14 in the normal direction.
  • the tool holder 12 can be fixed by a locking device 19 in its pivoting movement about the axis 13.
  • a normal to the track plane 14 extending support leg 15 is fixed, which is connected at a lower end 16 with a provided for resting on a threshold 17 support plate 18. This is in a - extending normal to the track plane 14 - longitudinal direction 21 of the support leg 15 relative to this slidably mounted and selectively connected by screws 20 with this.
  • the clamping device 22 On the support leg 15 a - with a clamping device 22 connected - Zangenarme 28 is mounted vertically displaceable in a longitudinal direction 21 in a guide 24.
  • the height adjustment of the clamping device 22 is effected by a
  • the clamping device 22 has two pincer-shaped gripping elements 25 which are pivotable about a pincer axis 27 by a clamping drive 26.
  • the clamping drive 26 is connected to the forceps carrier 28.
  • the clamping device 22 and the support leg 15 are arranged one behind the other with respect to a machine longitudinal direction 31 defined by spaced apart flange wheels 2.
  • the machine In use, the machine is placed by means of the operating handles 7 such that the clamping device 22 comes to rest with open gripping elements 25 via a nail head 29 of a rail nail 30.
  • both gripper elements 25 are moved relative to one another with an optionally adjustable clamping force, whereby the nail head 29 is positively captured ( Fig. 2 ).
  • the forceps support 28 With the subsequent activation of the height adjustment drive 23 - while pressing the support plate 18 on the threshold 17 - the forceps support 28 is raised together with the clamping device 22 and the clamping drive 26 while the rail nail 30 pulled out of the threshold 17.
  • the clamping device 22 can be optimally adapted to the specific position of the rail nail 30 by pivoting the tool carrier 12 with a short-term solution of the locking device 19.
  • the machine 1 In order to pull a rail nail 30 on the opposite side of the rail, only the machine 1 has to be slightly pivoted about the axis 9 until clamping device 22 and support plate 18 come to rest on the top rail.
  • the gripping elements 25 By transverse displacement of the machine 1 by means of the carriage 10, the gripping elements 25 are centered on the rail nail 30 to be pulled.
  • the forceps carrier 28 By lowering the forceps carrier 28, the initiation of the next drawing process takes place.
  • clamp carrier 28 fixed to the support leg 15 and, for example, the support plate 18 by a Drive relative to the support leg 15 to adjust in the longitudinal direction 21, so as to pull a rail nail 30 from a threshold 17.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Finger-Pressure Massage (AREA)
  • Bakery Products And Manufacturing Methods Therefor (AREA)
  • Confectionery (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

A railway construction machine withdraws rail anchorage pins (30) from the adjacent railroad track (3) ties (17) ('sleeper'). The hydraulic machine has a height-adjustable arm terminating in a clamp that can engage with the head fitted to any type of conventional anchorage pin.

Description

Die Erfindung betrifft eine Nagelziehmaschine zum Ziehen von Schienennägeln aus Schwellen eines Gleises, mit einer zur Anlage an einen Nagelkopf ausgebildete Greifelemente aufweisenden Klemmvorrichtung, wobei für die Bewegung der Greifelemente ein Klemmantrieb und für die Höhenverstellung der Klemmvorrichtung ein Höhenverstellantrieb vorgesehen ist.The invention relates to a Nagelziehmaschine for pulling rail nails from sleepers of a track, with a trained to rest on a nail head gripping elements clamping device, wherein a clamping drive for the movement of the gripping elements and a height adjustment is provided for the height adjustment of the clamping device.

US-A-3 883 118 beschreibt eine derartige Nagelziehmaschine in Form eines unter eigenem Antrieb gleisverfahrbaren Schienenfahrzeugs. Die zu beiden Seiten einer Schiene angeordneten Klemmvorrichtungen weisen Greifzangen auf, deren Abstand zueinander in Schienenlängsrichtung etwa der Länge einer Schwellenplatte entspricht. Ein auf der Maschine sitzenden Bediener muß die Klemmvorrichtung lediglich ungefähr über der betreffenden Einsatzstelle positionieren, um einen in diesem Schwellenplatten-Bereich gelegenen Nagel automatisch zu erfassen und herauszuziehen. US-A-3,883,118 describes such a nail-drawing machine in the form of a railway vehicle which can be moved under its own drive. The arranged on both sides of a rail clamping devices have gripping tongs whose distance from each other in the rail longitudinal direction corresponds approximately to the length of a threshold plate. An operator sitting on the machine need only position the clamping device approximately above the point of use in order to automatically grasp and extract a nail located in this threshold plate area.

DE 19 35 427 A1 offenbart eine von Hand verfahrbare Vorrichtung zum Ziehen von Federnägeln. Diese weisen jeweils eine Schlaufe auf, in die ein - auf einer Seite offener - Ziehhaken eingeführt wird, um den Federnagel aus der Schwelle zu ziehen. Das Einfädeln des Hakens erfolgt durch händisches Verschieben und Verschwenken der über der betreffenden Schiene positionierten Vorrichtung. DE 19 35 427 A1 discloses a hand-movable device for pulling feather nails. These each have a loop into which a - on one side open - pulling hook is inserted to pull the spring nail from the threshold. The threading of the hook is done by manually moving and pivoting the device positioned over the relevant rail.

Eine weitere Maschine ist durch EP 1 041 202 A1 bekannt, bei der die zangenförmigen Greifelemente in einem zylinderförmigen Rohr hochgezogen und dabei automatisch für ein Erfassen des Nagelkopfes zueinander bewegt werden. Dies hat allerdings den Nachteil, dass deformierte Nagelköpfe bzw. solche anderer Bauart nicht oder nur erschwert erfassbar sind.Another machine is through EP 1 041 202 A1 known in which the pincer-shaped gripping elements are pulled up in a cylindrical tube and thereby automatically moved for detecting the nail head to each other. However, this has the disadvantage that deformed nail heads or those of other types are difficult or impossible to detect.

Die Aufgabe der vorliegenden Erfindung liegt nun in der Schaffung einer Maschine der gattungsgemäßen Art mit verbesserter Bedienbarkeit bei gleichzeitig kompakter Bauweise.The object of the present invention is now to provide a machine of the generic type with improved operability and at the same time compact design.

Erfindungsgemäß wird diese Aufgabe mit einer Maschine der eingangs genannten Art durch die im Kennzeichen des Hauptanspruches angeführten Merkmale gelöst.According to the invention this object is achieved with a machine of the type mentioned by the features cited in the characterizing part of the main claim.

Mit dieser Ausbildung wird in vorteilhafter Weise eine besonders kompakte und daher leichte, aus Klemmvorrichtung und Stützfuß bestehende Einheit geschaffen, die sich durch ergonomisch günstige Bedienbarkeit und Handlichkeit auszeichnet, und zwar insbesondere beim Einsatz auf einer von Hand verfahrbaren Kleinmaschine. Ein weitere Vorteil besteht darin, dass die Bedienungsperson lediglich auf die richtige Platzierung bzw. Zentrierung der Klemmzange achten muss, wobei gleichzeitig und automatisch auch der Stützfuß in der korrekten Lage auf der Schwelle positioniert ist. Außerdem ist ein vollkommen problemloser und rascher Wechsel von der einen auf die benachbarte Schienenlängsseite möglich, ohne dass dazu irgendwelche Umrüst- oder Einstellungsarbeiten erforderlich wären.With this training, a particularly compact and therefore lightweight, consisting of clamping device and support leg unit is created in an advantageous manner, which is characterized by ergonomically favorable usability and manageability, especially when used on a hand-operated small machine. Another advantage is that the operator only has to pay attention to the correct placement or centering of the clamping tongs, wherein at the same time and automatically also the support foot is positioned in the correct position on the threshold. In addition, a completely trouble-free and quick change from one to the adjacent rail side is possible, without the need for any conversion or adjustment would be required.

Weitere Vorteile und Ausbildungen der Erfindung ergeben sich aus den weiteren Ansprüchen und der Zeichnung.Further advantages and embodiments of the invention will become apparent from the other claims and the drawings.

Im folgenden wird die Erfindung anhand von in der Zeichnung dargestellten Ausführungsbeispielen näher beschrieben.In the following the invention will be described in more detail with reference to embodiments shown in the drawing.

Es zeigen:

Fig. 1
eine Seitenansicht einer Nagelziehmaschine, und
Fig. 2
eine Detailansicht einer zum Erfassen eines Schienennagels ausgebildeten Klemmvorrichtung.
Show it:
Fig. 1
a side view of a nail pulling machine, and
Fig. 2
a detailed view of a trained for detecting a rail nail clamp.

Eine in Fig. 1 dargestellte Nagelziehmaschine 1 weist einen durch Spurkranzrollen 2 auf einem Gleis 3 verfahrbaren Maschinenrahmen 4 mit einem Motor 5 und einer Hydraulikanlage 6 auf. An einem vom Motor 5 distanzierten Ende sind Bedienungshandgriffe 7 mit Steuereinrichtungen 8 vorgesehen. Der Maschinenrahmen 4 ist um eine in Gleisquerrichtung verlaufende Achse 9 verschwenkbar auf einem Schlitten 10 gelagert. Dieser ist seinerseits auf einem Fahrgestellrahmen 11 in Gleisquerrichtung verschiebbar.An in Fig. 1 shown Nagelziehmaschine 1 has a track frame rollers 2 on a track 3 movable machine frame 4 with a motor 5 and a hydraulic system 6. At an end remote from the engine 5 operating handles 7 are provided with control devices 8. The machine frame 4 is mounted on a carriage 10 so as to be pivotable about an axis 9 running in the transverse direction of the track. This is in turn displaceable on a chassis frame 11 in the transverse direction of the track.

Zwischen dem Schlitten 10 und den Bedienungshandgriffen 7 befindet sich ein Werkzeugträger 12, der um eine Achse 13 verschwenkbar am Maschinenrahmen 4 befestigt ist. Die Achse 13 verläuft bezüglich einer Gleisebene 14 in normaler Richtung. Der Werkzeugträger 12 ist durch eine Arretiereinrichtung 19 in seiner Schwenkbewegung um die Achse 13 fixierbar.Between the carriage 10 and the operating handles 7 there is a tool carrier 12, which is attached to the machine frame 4 pivotable about an axis 13. The axis 13 extends with respect to a track plane 14 in the normal direction. The tool holder 12 can be fixed by a locking device 19 in its pivoting movement about the axis 13.

Wie auch in Fig. 2 ersichtlich, ist am Werkzeugträger 12 ein normal zur Gleisebene 14 verlaufender Stützfuß 15 befestigt, der an einem unteren Ende 16 mit einem zur Auflage auf einer Schwelle 17 vorgesehenen Stützteller 18 verbunden ist. Dieser ist in einer - normal zur Gleisebene 14 verlaufenden - Längsrichtung 21 des Stützfußes 15 relativ zu diesem verschiebbar gelagert und wahlweise durch Schrauben 20 mit diesem verbindbar.As well as in Fig. 2 can be seen, on the tool carrier 12 a normal to the track plane 14 extending support leg 15 is fixed, which is connected at a lower end 16 with a provided for resting on a threshold 17 support plate 18. This is in a - extending normal to the track plane 14 - longitudinal direction 21 of the support leg 15 relative to this slidably mounted and selectively connected by screws 20 with this.

Auf dem Stützfuß 15 ist ein - mit einer Klemmvorrichtung 22 verbundener - Zangenträger 28 in einer Führung 24 in Längsrichtung 21 höhenverschiebbar gelagert. Die Höhenverstellung der Klemmvorrichtung 22 erfolgt durch einen am Werkzeugträger 12 befestigten Höhenverstellantrieb 23. Die Klemmvorrichtung 22 weist zwei zangenförmige Greifelemente 25 auf, die durch einen Klemmantrieb 26 um eine Zangenachse 27 verschwenkbar sind. Der Klemmantrieb 26 ist mit dem Zangenträger 28 verbunden. Die Klemmvorrichtung 22 und der Stützfuß 15 sind bezüglich einer - durch voneinander distanzierte Spurkranzrollen 2 definierten - Maschinenlängsrichtung 31 hintereinander angeordnet.On the support leg 15 a - with a clamping device 22 connected - Zangenträger 28 is mounted vertically displaceable in a longitudinal direction 21 in a guide 24. The height adjustment of the clamping device 22 is effected by a The clamping device 22 has two pincer-shaped gripping elements 25 which are pivotable about a pincer axis 27 by a clamping drive 26. The clamping drive 26 is connected to the forceps carrier 28. The clamping device 22 and the support leg 15 are arranged one behind the other with respect to a machine longitudinal direction 31 defined by spaced apart flange wheels 2.

Im Arbeitseinsatz wird die Maschine mit Hilfe der Bedienungshandgriffe 7 derart platziert, dass die Klemmvorrichtung 22 mit geöffneten Greifelementen 25 über einen Nagelkopf 29 eines Schienennagels 30 zu liegen kommt. Unter Beaufschlagung des Klemmantriebes 26 werden beide Greifelemente 25 mit einer wahlweise einstellbaren Klemmkraft zueinander bewegt, wodurch der Nagelkopf 29 formschlüssig erfasst wird (Fig. 2). Mit der darauf folgenden Aktivierung des Höhenverstellantriebes 23 wird - unter Anpressung des Stütztellers 18 auf die Schwelle 17 - der Zangenträger 28 mitsamt der Klemmvorrichtung 22 und dem Klemmantrieb 26 angehoben und dabei der Schienennagel 30 aus der Schwelle 17 gezogen.In use, the machine is placed by means of the operating handles 7 such that the clamping device 22 comes to rest with open gripping elements 25 via a nail head 29 of a rail nail 30. Upon application of the clamping drive 26, both gripper elements 25 are moved relative to one another with an optionally adjustable clamping force, whereby the nail head 29 is positively captured ( Fig. 2 ). With the subsequent activation of the height adjustment drive 23 - while pressing the support plate 18 on the threshold 17 - the forceps support 28 is raised together with the clamping device 22 and the clamping drive 26 while the rail nail 30 pulled out of the threshold 17.

Im Falle von schrägliegenden Schwellen 17 kann unter kurzzeitiger Lösung der Arretiereinrichtung 19 die Klemmvorrichtung 22 durch Schwenkung des Werkzeugträgers 12 optimal an die spezielle Lage des Schienennagels 30 angepasst werden. Um einen Schienennagel 30 auch an der gegenüberliegenden Schienenseite ziehen zu können, muss lediglich die Maschine 1 geringfügig um die Achse 9 geschwenkt werden, bis Klemmvorrichtung 22 und Stützteller 18 über der Schienenoberkante zu liegen kommen. Durch Querverschieben der Maschine 1 mit Hilfe des Schlittens 10 sind die Greifelemente 25 über dem zu ziehenden Schienennagel 30 zentrierbar. Durch Absenken des Zangenträgers 28 erfolgt die Einleitung des nächsten Ziehvorganges.In the case of oblique thresholds 17, the clamping device 22 can be optimally adapted to the specific position of the rail nail 30 by pivoting the tool carrier 12 with a short-term solution of the locking device 19. In order to pull a rail nail 30 on the opposite side of the rail, only the machine 1 has to be slightly pivoted about the axis 9 until clamping device 22 and support plate 18 come to rest on the top rail. By transverse displacement of the machine 1 by means of the carriage 10, the gripping elements 25 are centered on the rail nail 30 to be pulled. By lowering the forceps carrier 28, the initiation of the next drawing process takes place.

Alternativ besteht natürlich auch die Möglichkeit, den Zangenträger 28 fix am Stützfuß 15 anzuordnen und beispielsweise den Stützteller 18 durch einen Antrieb relativ zum Stützfuß 15 in Längsrichtung 21 zu verstellen, um damit einen Schienenagel 30 aus einer Schwelle 17 zu ziehen.Alternatively, of course, there is also the possibility to fix the clamp carrier 28 fixed to the support leg 15 and, for example, the support plate 18 by a Drive relative to the support leg 15 to adjust in the longitudinal direction 21, so as to pull a rail nail 30 from a threshold 17.

Claims (4)

  1. A spike pulling machine for pulling rail spikes (30) from sleepers (17) of a track (3), comprising a clamping device (22) having gripping elements (25) designed for application to a spike head (29), wherein a clamping drive (26) is provided for the movement of the gripping elements (25) and a vertical adjustment drive (23) is provided for the vertical adjustment of the clamping device (22), characterized in that the clamping device (22) together with the clamping drive (26) is mounted for vertical adjustment on a supporting leg (15) provided for placement upon a sleeper (17), and that the clamping device (22) and the supporting leg (15) are arranged one following the other with respect to a longitudinal direction (31) of the machine defined by flanged rollers (2) spaced from one another, wherein the supporting leg (15) is distanced from operating handles (7) farther than the clamping device (22), and the clamping device (22) and the supporting leg (15) are fastened on a tool carrier (12) which is supported on a machine frame (4) mobile by means of the flanged rollers (2) on the track (3), wherein the machine frame (4) is supported on a carriage which is displaceable on a chassis frame (11) in the transverse direction of the track.
  2. A machine according to claim 1, characterized in that the tool carrier (12) is supported on the machine frame (4) for pivoting about an axis (13).
  3. A machine according to claim 2, characterized in that the tool carrier (12) may be fixed in its pivoted position relative to the machine frame (4) by means of a locking device (19).
  4. A machine according to claim 1, characterized in that a lower end (16) of the supporting leg (15) is designed as a supporting plate (18) which is mounted for displacement in a longitudinal direction (21) of the supporting leg (15) relative to the same and may be selectively connected, with regard to the displacement direction, to said supporting leg (15).
EP05003012A 2004-06-30 2005-02-12 Spike puller Not-in-force EP1612330B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202004010216U DE202004010216U1 (en) 2004-06-30 2004-06-30 Nail drawing machine

Publications (3)

Publication Number Publication Date
EP1612330A2 EP1612330A2 (en) 2006-01-04
EP1612330A3 EP1612330A3 (en) 2006-08-30
EP1612330B1 true EP1612330B1 (en) 2009-08-12

Family

ID=32981607

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05003012A Not-in-force EP1612330B1 (en) 2004-06-30 2005-02-12 Spike puller

Country Status (5)

Country Link
US (1) US20060000382A1 (en)
EP (1) EP1612330B1 (en)
AT (1) ATE439473T1 (en)
DE (2) DE202004010216U1 (en)
RU (1) RU2005115648A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2336517B8 (en) * 2007-07-30 2011-07-28 Francisco Ortiz Aranega KEY EXTRACTION MACHINE.
EP2163507B2 (en) † 2008-09-15 2020-05-13 Markus Erich Riedl Shelf operating device gripper and method for operating same
DE202012007818U1 (en) * 2012-08-16 2012-09-24 Robel Bahnbaumaschinen Gmbh Handleable machine for track maintenance
US9637867B2 (en) 2014-08-05 2017-05-02 Good Earth Tools, Inc. Spike claw puller and method of manufacture thereof
FR3076840B1 (en) * 2018-01-15 2020-01-03 Matisa Materiel Industriel S.A. LOCKING DEVICE FOR AN IMPROVED RAILWAY APPARATUS

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1893719A (en) * 1930-07-09 1933-01-10 Nordberg Manufacturing Co Spike puller
US3249334A (en) * 1962-02-27 1966-05-03 Nordberg Manufacturing Co Hydraulic spike puller
US3336001A (en) * 1966-02-14 1967-08-15 Robert M Barton Pin puller
DE1935427C3 (en) * 1969-07-11 1980-10-16 Franz Plasser Bahnbaumaschinen- Industriegesellschaft Mbh, Wien Hydrostatic nail puller
US3883118A (en) * 1974-06-03 1975-05-13 Southern Railway Co Spike pulling mechanism
US4078766A (en) * 1977-04-11 1978-03-14 Saurwein Albert C Powered nail extractor
US6098960A (en) 1999-03-31 2000-08-08 Framatome Connectors Usa, Inc. Hydraulic spike puller

Also Published As

Publication number Publication date
RU2005115648A (en) 2006-11-27
DE202004010216U1 (en) 2004-09-09
EP1612330A3 (en) 2006-08-30
DE502005007878D1 (en) 2009-09-24
US20060000382A1 (en) 2006-01-05
EP1612330A2 (en) 2006-01-04
ATE439473T1 (en) 2009-08-15

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