US3435779A - Track lifting truss - Google Patents

Track lifting truss Download PDF

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Publication number
US3435779A
US3435779A US613911A US3435779DA US3435779A US 3435779 A US3435779 A US 3435779A US 613911 A US613911 A US 613911A US 3435779D A US3435779D A US 3435779DA US 3435779 A US3435779 A US 3435779A
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United States
Prior art keywords
track
lifting
wheels
vehicle
rail
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
Application number
US613911A
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English (en)
Inventor
John K Stewart
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.)
TAMPER Inc
Original Assignee
TAMPER Inc
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Filing date
Publication date
Application filed by TAMPER Inc filed Critical TAMPER Inc
Application granted granted Critical
Publication of US3435779A publication Critical patent/US3435779A/en
Anticipated expiration legal-status Critical
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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

  • ABSTRACT F THE DISCLOSURE Apparatus for lifting railroad track which apparatus is mounted on a track travelling vehicle having a chassis and includes a pair of track lifting truss elements extending longitudinally of the vehicle chassis and overhanging the front end thereof, which trusses are pivotally mounted on trunnions concentric with the axles of the front wheels and extending outwardly of the wheels, the trusses carrying rail engaging magnets at their forward ends and hydraulic jacks being provided to pivot the trusses about the trunnions and lift the track, the forces created during the track lifting operations being transmitted directly to the ground through the trunnions and the rail engaging wheels.
  • the invention relates to apparatus for lifting railway tracks.
  • ballast In the levelling or initial grading of railway track, it is necessary to left the track at low points so that ballast can be inserted beneath a tie and then tamped down.
  • Numerous devices have been proposed for lifting the track, and known forms of track lifting devices are commonly mounted on a wheeled vehicle adapted to run on the track itself. Such vehicles may carry tamping apparatus as well as the lifting device.
  • a railway track lifting apparatus comprising a track travelling vehicle having a chassis; two pairs of longitudinally spaced wheels mounted on axles and supporting the vehicle chassis; trunnion means on one pair of wheels; and track lifting means including a track lifting truss mounted on said trunnions through which forces produced during track lifting operations are transmitted directly to said one pair of wheels and therethrough to earth.
  • the invention also consists in railway track lifting apparatus comprising a wheeled vehicle adapted t0 travel along the track having two pairs of longitudinally spaced wheels, trunnions on at least one of the pairs of wheels concentric with the axles and extending outwardly of the wheels, a beam pivotally mounted on the trunnion of one of the Wheels, rail lifting means at or near a free end of the beam, and force applying means operative between the beam and the trunnion on the other wheel to raise and lower the lifting means by pivoting it about the rst said trunnion, the forces produced by the track lifting operations being transmitted via the trunnions directly through the wheels of the vehicle to the track.
  • the rail lifting means of the apparatus should comprise a member capable of lifting a rail whilst it is slid therealong.
  • the member may for example achieve its lift through electromagnetic means.
  • FIGURE l is a side view of railway track lifting apparatus in accordance with the present invention and mounted on a railway track;
  • FIGURE 2 is a plan view of the arrangement shown in FIGURE l;
  • FIGURE 3 is a view partially in section of a Wheel and its trunnion and a bearing and beam of the apparatus shown in FIGURE l;
  • FIGURE 4 is a view in section of an electromagnetic rail lifting member.
  • the track lifting apparatus shown in the drawings comprises a four-wheeled vehicle 1, the wheels 2 and 3 of which are carried by a pair of transverse axles 4 and 5 and are adapted to travel along the track 6 to be lifted.
  • Each wheel 2 and 3 has integrally cast therewith an outwardly projecting trunnion member 7 concentric with the wheel axle opening and the vehicle carries on each side a beam 8 of elongated triangular form, each beam 8 being pivoted through a roller bearing 9 substantially at the centre of its base, to the trunnion 7 of one of the forward wheels 2.
  • the beam 8 projects forwardly of the vehicle 1 and extends rearwardly to the rear wheels 3.
  • each beam 8 carries a rail lifter 9 in the form of an electromagnetic member 10 adapted to be engaged with the rail 11 in clasping relation, and which may be formed in section as an inverted W, the outer arms 12 travelling adjacent the opposite sides of a rail 11 with the central arm 13, around which the coil 14 is wound, on top of the rail 11.
  • the rear wheels 3 of the vehicle 1 mount on their respective trunnions 7 force applying means in the form of a hydraulic ram 15 connected between the beam 8 and the trunnion 7.
  • force applying means in the form of a hydraulic ram 15 connected between the beam 8 and the trunnion 7.
  • the rams 15 are accommodate in recessed portions at the rear ends of the beam 8.
  • a railway track lifting apparatus comprising a track travelling vehicle having a chassis; front and rear pairs of wheels mounted on axles and supporting the vehicle chassis, trunnion means mounted on the leading pair of wheels concentric with the wheel axles and extending outwardly of the wheels; and track lifting means including a track lifting truss pivotally mounted intermediate its length on said trunnion means which provide a direct path to earth, through the front pair of wheels, for forces produced during a track lifting operation; rail engaging means located adjacent a leading end of the truss; and force applying means located adjacent a trailing end of said truss and connected thereto to pivot said truss on said trunnion means to lift the track.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)
  • Vehicle Body Suspensions (AREA)
US613911A 1966-02-08 1967-02-03 Track lifting truss Expired - Lifetime US3435779A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5522/66A GB1154313A (en) 1966-02-08 1966-02-08 Railway Track Lifting Apparatus

Publications (1)

Publication Number Publication Date
US3435779A true US3435779A (en) 1969-04-01

Family

ID=9797781

Family Applications (1)

Application Number Title Priority Date Filing Date
US613911A Expired - Lifetime US3435779A (en) 1966-02-08 1967-02-03 Track lifting truss

Country Status (3)

Country Link
US (1) US3435779A (de)
AT (1) AT288469B (de)
GB (1) GB1154313A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2042633A1 (de) * 1969-09-05 1971-04-01 Canron Ltd C anron Limitee, Montreal, Quebec (Kanada) Vorrichtung zum Gleisheben
US3687081A (en) * 1969-07-24 1972-08-29 Plasser Bahnbaumasch Franz Method of continuously correcting a track position
US4241663A (en) * 1978-10-13 1980-12-30 Canron Corporation Tie plate handling means for rail changing machine
WO2016005024A1 (de) * 2014-07-07 2016-01-14 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Magnetische hebevorrichtung zum anheben eines gleises
US11408131B2 (en) 2019-04-25 2022-08-09 Herzog Railroad Services, Inc. Track-lifting and ballast-spreading apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2423506A (en) * 2005-02-28 2006-08-30 Balfour Beatty Plc Vehicle for transporting rails

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3149578A (en) * 1959-10-20 1964-09-22 Plasser Franz Mobile track lifting apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3149578A (en) * 1959-10-20 1964-09-22 Plasser Franz Mobile track lifting apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3687081A (en) * 1969-07-24 1972-08-29 Plasser Bahnbaumasch Franz Method of continuously correcting a track position
DE2042633A1 (de) * 1969-09-05 1971-04-01 Canron Ltd C anron Limitee, Montreal, Quebec (Kanada) Vorrichtung zum Gleisheben
US4241663A (en) * 1978-10-13 1980-12-30 Canron Corporation Tie plate handling means for rail changing machine
WO2016005024A1 (de) * 2014-07-07 2016-01-14 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M.B.H. Magnetische hebevorrichtung zum anheben eines gleises
US11408131B2 (en) 2019-04-25 2022-08-09 Herzog Railroad Services, Inc. Track-lifting and ballast-spreading apparatus

Also Published As

Publication number Publication date
GB1154313A (en) 1969-06-04
AT288469B (de) 1971-03-10

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