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US3074174A - Apparatus for determining a desired level of a track section to be raised - Google Patents

Apparatus for determining a desired level of a track section to be raised Download PDF

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Publication number
US3074174A
US3074174A US77329A US7732960A US3074174A US 3074174 A US3074174 A US 3074174A US 77329 A US77329 A US 77329A US 7732960 A US7732960 A US 7732960A US 3074174 A US3074174 A US 3074174A
Authority
US
United States
Prior art keywords
track section
tension member
raised
tension
length
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
US77329A
Other languages
English (en)
Inventor
Plasser Franz
Theurer Josef
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
Priority claimed from AT357759A external-priority patent/AT216552B/de
Priority claimed from AT535159A external-priority patent/AT220648B/de
Priority claimed from AT951359A external-priority patent/AT230924B/de
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3074174A publication Critical patent/US3074174A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E01B35/00—Applications of measuring apparatus or devices for track-building purposes
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B27/00—Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
    • E01B27/12—Packing sleepers, with or without concurrent work on the track; Compacting track-carrying ballast
    • E01B27/13—Packing sleepers, with or without concurrent work on the track
    • E01B27/16—Sleeper-tamping machines
    • E01B27/17—Sleeper-tamping machines combined with means for lifting, levelling or slewing the track
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2203/00—Devices for working the railway-superstructure
    • E01B2203/10—Track-lifting or-lining devices or methods
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2203/00—Devices for working the railway-superstructure
    • E01B2203/12—Tamping devices
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2203/00—Devices for working the railway-superstructure
    • E01B2203/16—Guiding or measuring means, e.g. for alignment, canting, stepwise propagation

Definitions

  • the present invention relates to track grading, and more particularly to improvements in apparatus for accurately determining a desired track level and raising the track to such a level.
  • an elongated, flexible tension member for instance a wire
  • a wire extending along a track section to be raised
  • attach one end of such a reference wire to a fixed anchor point adjacent one end of the track section to be raised and to mount the other anchor point of the reference wire on a mobile tfack tamper which continuously approaches the fixed anchor point as the track grading operation proceeds over the track section.
  • the length of the wire is thus continuously shortened during the operation and the wire is wound on a tension roll behind its anchor point to keep it under substantially constant tension.
  • the lifting stroke parameter is determined in reference to the tensioned wire ahead of the track tamper.
  • the constantly shortened tension member is held under a constant tension and the amount of sag is simply empirically measured in accordance with the tension of a tension member having given physical characteristics and a given length.
  • FIG- URE of the accompanying drawing showing a schematic side view of an apparatus for determining a desired level of a track section to be raised, some elements being dispr0- portionally "enlarged to clarify significant features of the invention.
  • a preferred track grading apparatus to which this invention may usefully be applied is fully disclosed and claimed in our copending application Serial No. 27,578, filed May 9, 1960.
  • the description of the invention will refer only to such parts of the apparatus as are directly connected with the elements of the present invention.
  • the track correction vehicle with its track gripping means and track jacks, for instance, has not been shown at all and the track tamper is only schematically indicated since the invention is not concerned with these features.
  • a mobile track tamper carriage 1 with a forwardly projecting support bracket 1' carrying a vertical measuring element 8, 8'.
  • the tamping tools 13 are mounted forwardly of the front wheels 2 of the track tamper so that the front wheels travel on a finished track section which has been fixed at the desired level.
  • Idler roller 5. is mounted on vertical rod 14 and forms one anchor point for the elongated, flexible tension member 3 which is a wire in the illustrated embodiment.
  • the other anchor point for wire 3 is constituted by a hook 16 to which an end of the wire is attached.
  • the anchor point 16 is mounted on a vertical frame 4 mounted on a mobile wagon 19 running on track 12 ahead of the track section to be raised.
  • the vertical spacing of the two anchor points of the wire from the track is identical so that the tensioned wire serves as a reference determining the lifting stroke parameter for the raising of the track section between the two anchor points.
  • anchor point 16 is held in fixed position while the track tamper 1 advances from tie to tie toward wagon 19, thus progressively shortening the length of the wire 3 while portions thereof sag from the straight line indicated by dot-and-dash lines to the sagging wire line indicated in full line.
  • the reference line should be straight so that the track to be raised in parallel thereto may be equally level. Since, in practice, the tension member sags, allowance is made for this sagging When the track is raised in accordance with this invention.
  • a drive means is operatively connected with the winding or tension roll 6, the illustrated drive means comprising essentially a rack-and-pinion mechanism consisting of pinion 7 meshing with rack 7', the pinion being connected with the tension roll by means of belt 15.
  • the vertical measuring element which is positioned at the point of the track section to be raised, comprises parts 8 and 8' which are interconnected by means of a cam disc 9 to make the length of the element adjustable.
  • Part 8' carries a roller on its lower end to engage the track 12.
  • measuring element part 8 supports a housing 17 for the cam disc 9, upper measuring element part 8 being engaged by the cam disc and being adjustably positioned in relation to part 8' by the cam disc. Part 8 is in contact with or sights sagging wire 3.
  • cam disc 9 is driven by a rack-and-pinion mechanism, the cam disc being mounted on pinion 18 meshing with rack 11.
  • Rack 11 is operatively connected with and driven by drive means 7, 7', the illustrated connection being a linkage system 10 connecting racks 7' and 11.
  • the cam disc is driven in synchronism with pinion 7 which, in turn, is rotated by tension roll 6 as the tensioned tension member 3 is wound thereon during the progress of the grading operation.
  • the cam disc is so marked and adjusted that it may be brought into an initial operating position corresponding to the distance between anchor points 5 and 16.
  • its rotation and corresponding adjustment function develops automatically.
  • the track section is raised to a desired level by extending the elongated, flexible tension member along the track section and vertically spaced therefrom 'from anchor point 16 to idler roller 5.
  • a tension is exerted on the member 3 by winding it on roll 6 and simultaneously shortening the length of the tension member as the raising of the track section proceeds.
  • the tensioned tension member serves as a reference and determines the lifting stroke parameter 'for the raising of the track section but the tension member sags from its straight line and the amount of sag of any tension member portion in registry with a point of the track section to beraised is, therefore, measured in accordance with this invention and this amount is added to the lifting stroke parameter.
  • track section is then raised at this point by the sum of the amount of sag and the lifting stroke parameter.
  • An apparatus for determining a desired level of a 4- track section to be raised comprising (a) an elongated, flexible tension member extending along the track section and vertically spaced therefrom, (b) two anchor points for said tension member adjacent the respective ends of said track section, one of said points being movable in relation to the other one as the raising of the track section proceeds whereby the length of the tension member is shortened, (c) a tension roll for winding the tension member thereon'under a substantially constant tension, said tensioned tension member serving as a reference and determining the lifting stroke parameter for the raising of the track section and portions of said tension member sagging, (d) a drive means in operative connection with and driven by the tension roll, (e) a longitudinally adjustable'vertical measuring-element at a point of the track section to be raised and measuring the distance between the track section and the tension member, means for adjusting the length of the measuring element in accord ance with the amount of sagof the t'ension'me'mber portion in registrywith
  • measuring element length adjusting means comprises a rotatable cam disc drivenaby said drive means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
US77329A 1959-05-13 1960-12-21 Apparatus for determining a desired level of a track section to be raised Expired - Lifetime US3074174A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT357759A AT216552B (de) 1959-05-13 1959-05-13 Einrichtung zum Ausrichten, insbesondere Anheben, von Gleisen
AT535159A AT220648B (de) 1959-07-21 1959-07-21 Einrichtung zum Ausrichten, insbesondere Anheben von Geleisen
AT951359A AT230924B (de) 1959-12-31 1959-12-31 Einrichtung zur laufenden Korrektur des Hebungsmaßes

Publications (1)

Publication Number Publication Date
US3074174A true US3074174A (en) 1963-01-22

Family

ID=27149507

Family Applications (1)

Application Number Title Priority Date Filing Date
US77329A Expired - Lifetime US3074174A (en) 1959-05-13 1960-12-21 Apparatus for determining a desired level of a track section to be raised

Country Status (4)

Country Link
US (1) US3074174A (de)
CH (1) CH391758A (de)
DE (1) DE1165632B (de)
GB (1) GB927603A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3192870A (en) * 1960-03-07 1965-07-06 Plasser Franz Track aligning arrangement

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1759114B1 (de) * 1963-10-14 1970-11-19 Canron Ltd Einrichtung zum Richten eines Gleises der Seite nach
IN170226B (de) * 1985-08-02 1992-02-29 Pandrol Ltd

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2962979A (en) * 1959-05-21 1960-12-06 William C Mccormick Method of correcting existing track and alignements and means for practicing it
US2974607A (en) * 1957-06-05 1961-03-14 Nordberg Manufacturing Co Track surfacing assembly and method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2974607A (en) * 1957-06-05 1961-03-14 Nordberg Manufacturing Co Track surfacing assembly and method
US2962979A (en) * 1959-05-21 1960-12-06 William C Mccormick Method of correcting existing track and alignements and means for practicing it

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3192870A (en) * 1960-03-07 1965-07-06 Plasser Franz Track aligning arrangement

Also Published As

Publication number Publication date
DE1165632B (de) 1964-03-19
CH391758A (de) 1965-05-15
GB927603A (en) 1963-05-29

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