US3388672A - Apparatus for lifting a track rail - Google Patents

Apparatus for lifting a track rail Download PDF

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Publication number
US3388672A
US3388672A US423728A US42372865A US3388672A US 3388672 A US3388672 A US 3388672A US 423728 A US423728 A US 423728A US 42372865 A US42372865 A US 42372865A US 3388672 A US3388672 A US 3388672A
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United States
Prior art keywords
rail
track
carriage
lifting
magnetic
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Expired - Lifetime
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US423728A
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English (en)
Inventor
Plasser Franz
Theurer Josef
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Individual
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Individual
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Publication date
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Publication of US3388672A publication Critical patent/US3388672A/en
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Classifications

    • 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
    • E01B29/04—Lifting or levelling of tracks

Definitions

  • the present invention relates to improvements in track rail lifting machines, and more particularly to novel and improved means for holding the rail during lifting.
  • the invention takes advantage of the fact that track rails are of steel or like ferrous material capable of being magnetically attracted and held firmly while being lifted so that vertically movable magnetic means may serve in rail lifting apparatus during track grading or ballast cleaning operations.
  • the magnetic rail lifting means of this invention may be used in any otherwise conventional mobile machine used in track maintenance operations requiring the lifting of the rails and may be kept in gripping connection with the adjacent rail during the forward movement of the machine since it merely glides along the upper surface of the rail without in any way interfering with rail fastening or connecting means along the sides of the rail.
  • friction-reducing means is interposed between the magnetic means and the adjacent rails to enable the magnetic means to move freely along the rail during the forward movement of the machine.
  • friction-reducing means include rollers, balls, wheels and the like.
  • the magnetic means is mounted on a small trackless truck running on each rail and coupled to the front end of a suitable track maintenance machine for movement therewith.
  • the endless truck chain engages the rail with preferably flanged chain links.
  • FIG. 1 is a side view illustrating a specific embodiment of this invention.
  • FIG. 2 is a vertical section showing a portion of the Patented June 18, 1968 apparatus in relation to one of the track rails, the identical view in relation to the other track rail not being shown.
  • a carriage 1 adapted for movement along, and in the direction of, the track constituted by a pair of rails 14 mounted on ties 15.
  • This carriage may be part of any suitable mobile railroad track maintenance machine, such as a track tamper and/ or liner, a ballast cleaning machine or any other apparatus requiring lifting of the track during operation.
  • a support arm 2 and a carrier arm 8 are mounted on the front end of carriage 1 and project forwardly therefrom.
  • a hearing means is provided for vertically movably mounting the carrier arm 8 on the carriage 1, the illustrated bearing means consisting of a fixed guide rod 10 connected to the front end of the carriage and a bearing sleeve 9 held on the guide rod for vertical reciprocating movement thereon.
  • a hydraulic motor is linked to the carriage and the carrier arm for vertically moving the carrier arm, the hydraulic motor shown in FIG. 1 including a cylinder 3 linked to support arm 2 at pivot 6 and a piston rod 5 linked to the carrier arm 8 at pivot 7. Upon supply of hydraulic fluid through inlet 17 to cylinder 3, the piston 4, which is connected to the piston rod 5, will be forced upwardly and thus vertically move carrier arm 8 upwardly.
  • the carrier arm 8 is a bifurcated structure carrying a support frame including a pair of side plates 11, 11 for a small trackless truck including guide rolls 13, 13 journaled on the support frame and an endless chain 12 mounted on the guide rolls and arranged to engage the rail 14.
  • the endless chain has links with flanges 12 engaging the rail.
  • the trackless truck Fixed to the support frame 11, 11 the trackless truck carries a magnet 16 which is a magnetic means exerting a holding force on rail 14 when it is adjacent the rail whereby the magnetically held rail may be lifted when the hydraulic motor is operated.
  • the magnet 16 may be a solenoid which may be permanently energized or whose energization may be limited to the time of the lifting operation. Even in the latter case, operation and control of a solenoid is considerably simpler than those of a mechanical rail gripper means.
  • endless chain 12 constitutes friction-reducing means interposed between the magnetic rail holding means and the adjacent rail.
  • the solenoid may be permanently energized and hold the rail atthe desired grade while the track maintenance machine continuously operates and advances along the track, for instance while the ballast is continuously tamped under the lifted track during the grading operation advancing from tie to tie.
  • the frictionreducing endless rail engaging chain 12 facilitates forward movement sufiiciently to obviate any special forward thrust applied to the mobile machine, despite the magnetic force attracting the rail to the magnet.
  • said magnetic means is a solenoid energized to exert said magnetic holding force and deenergized for the free movement thereof along said upper rail surface.
  • the apparatus of claim 4 further comprising an endless chain and guide rolls mounting the chain on the support frame, the endless chain being arranged to engage the upper surface of the rail.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Types And Forms Of Lifts (AREA)
US423728A 1964-01-14 1965-01-06 Apparatus for lifting a track rail Expired - Lifetime US3388672A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT25464A AT287764B (de) 1964-01-14 1964-01-14 Vorrichtung zum Anheben von Gleisen

Publications (1)

Publication Number Publication Date
US3388672A true US3388672A (en) 1968-06-18

Family

ID=3485636

Family Applications (1)

Application Number Title Priority Date Filing Date
US423728A Expired - Lifetime US3388672A (en) 1964-01-14 1965-01-06 Apparatus for lifting a track rail

Country Status (5)

Country Link
US (1) US3388672A (de)
AT (1) AT287764B (de)
CH (1) CH416705A (de)
DE (1) DE6603370U (de)
GB (1) GB1019530A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3481278A (en) * 1968-01-15 1969-12-02 Boyer Jean Jacques Arrangement for raising railroad tracks
US3687081A (en) * 1969-07-24 1972-08-29 Plasser Bahnbaumasch Franz Method of continuously correcting a track position
JPS50150908U (de) * 1974-05-31 1975-12-16

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1658302B1 (de) * 1967-12-30 1971-10-28 Boyer Jean Jacques Vorrichtung zum Anheben von Gleisen
GB2423506A (en) * 2005-02-28 2006-08-30 Balfour Beatty Plc Vehicle for transporting rails
AT515679B1 (de) 2014-07-07 2015-11-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Hebevorrichtung zum Anheben eines Gleises

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622750A (en) * 1949-07-05 1952-12-23 Ehlers Otto William Magnetic lifting device for fork trucks
US2895429A (en) * 1953-08-17 1959-07-21 Baermann Max Friction increasing arrangement
US3153390A (en) * 1960-02-16 1964-10-20 Plasser Franz Track lifting machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622750A (en) * 1949-07-05 1952-12-23 Ehlers Otto William Magnetic lifting device for fork trucks
US2895429A (en) * 1953-08-17 1959-07-21 Baermann Max Friction increasing arrangement
US3153390A (en) * 1960-02-16 1964-10-20 Plasser Franz Track lifting machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3481278A (en) * 1968-01-15 1969-12-02 Boyer Jean Jacques Arrangement for raising railroad tracks
US3687081A (en) * 1969-07-24 1972-08-29 Plasser Bahnbaumasch Franz Method of continuously correcting a track position
JPS50150908U (de) * 1974-05-31 1975-12-16

Also Published As

Publication number Publication date
AT287764B (de) 1971-02-10
CH416705A (de) 1966-07-15
GB1019530A (en) 1966-02-09
DE6603370U (de) 1969-09-18

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