US3604360A - Chord liner - Google Patents

Chord liner Download PDF

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Publication number
US3604360A
US3604360A US855102A US3604360DA US3604360A US 3604360 A US3604360 A US 3604360A US 855102 A US855102 A US 855102A US 3604360D A US3604360D A US 3604360DA US 3604360 A US3604360 A US 3604360A
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United States
Prior art keywords
track
length
photocell
representation
movement
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
US855102A
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English (en)
Inventor
John Kenneth Stewart
William J Tyler
Helmuth Rolf Erich Vo Beckmann
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
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TAMPER Inc
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 TAMPER Inc filed Critical TAMPER Inc
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Publication of US3604360A publication Critical patent/US3604360A/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
    • 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
    • E01B2203/00—Devices for working the railway-superstructure
    • E01B2203/16—Guiding or measuring means, e.g. for alignment, canting, stepwise propagation

Definitions

  • Apparatus for aligning railroad track providing automatic alignment to a visual representation appearing on a recording medium.
  • the invention provides ap- S paratus comprising means mounting said apparatus for moverawmg Figs ment along a length of track, means for mounting a recording [1.5. Cl 104/8 medium carrying a representation of the desired alignment Int. Cl.
  • E0lb 32/02 condition of the length of track, means for following saId E0lb 35/10 representation, and means responsive to said following means Field of Search 104/7, 7 B, for moving the track at a point in said length to correct mis- 7 A, 8, 12; 33/60 aLignment of the track.
  • apparatus for aligning railroad track comprising means mounting said apparatus for movement along a length of track, means for mounting a recording medium, carrying a representation of the desired alignment condition of the length of track, means for following said representation and means responsive to said following means for moving the track at a point in said length to correct misalignment of the track.
  • the following means comprises a photocell which is mounted in the apparatus to follow a representation of the desired alignment on the chart of a chart recorder.
  • FIG. I is a generally diagrammatic representation of the apparatus embodying the invention in a surveying mode.
  • FIG. 2 is the apparatus of the embodiment of FIG. 1 in an aligning mode.
  • the apparatus illustrated in the drawings and described hereinafter comprises means both for correcting the actual alignment condition of a length of railroad track and means for correcting the alignment of that length of track after establishing the actual alignment condition.
  • the present invention is concerned with the apparatus for aligning the track.
  • the apparatus as recited comprises reference line establishing means in the form of a radiation transmitter and a radiation receiver and a reference line detection means in the form of a shadowboard.
  • reference line establishing means in the form of a radiation transmitter and a radiation receiver
  • reference line detection means in the form of a shadowboard.
  • Such apparatus is well known in the art and will not be further described except to point out that the transmitter and receiver are spaced along the length of the track and that the shadowboard is usually placed closer to the receiver than the transmitter.
  • the transmitter is indicated by the numeral 1 and the receiver by the numeral 2 and the reference line therebetween by the numeral 3.
  • the shadowboard is indicated by reference numeral 4.
  • the shadowboard In the surveying condition of the apparatus, the shadowboard is under the control of a motor via gear box 6. In the surveying mode, the shadowboard may be maintained in a position in which it detects the reference line 3 by means of signals derived from the receiver 2 and operating on the motor 5 by hunting about the reference line in a manner which is known in the art and will not be further described herein. It is to be noted that in the drawings, the solid lines represent electrical connections and the broken lines represent mechanical connections between the elements illustrated.
  • An electrical signal from the potentiometer is passed through a summing amplifier 8 to a motor 9 to a further gear box 10.
  • the gear box 10 has a mechanical connection to a pen 11 of a chart recorder 12.
  • a feedback from the gear box 10 through a potentiometer 13 to the amplifier 8 is provided so that the system 8, 9, l0 and 13 provides a feedback servosystem.
  • a wheel 14 runs on the track at a point adjacent the shadowboard 4 and this wheel is mechanically connected to the chart recorder so that the chart 15 of the chart recorder moves under the pen 11 at a rate proportional to the movement of the apparatus along the track. It will be understood that the aforedescribed apparatus provides means for actually creating a visual representation of the actual alignment condition of the track during a pass of the apparatus in the surveying mode along the track.
  • FIG. 2 there is shown the alignment condition of the apparatus of this embodiment. Similar components have the same reference numerals. Accordingly, reference line establishing means in the alignment condition comprise the transmitter 1 and the receiver 2.
  • a chart recorder is indicated by the numeral 12 and carries a chart 15. The chart is moved by the wheel 14.
  • a photocell 20 is mounted above the chart of the chart recorder and is capable of moving laterally of the chart under the control of a circuit 21 which will be described below.
  • the shadowboard is mechanically connected to a potentiometer 21a which converts the movement of the photocell to an electrical signal which controls movement of the shadowboard 4 through a motor 22 and a gear box 23.
  • a feedback loop to a summing amplifier 24 is provided by way of a potentiometer 25 connected to the gear box 23 and feeding a signal to the amplifier 24.
  • the shadowboard is mounted on that part of the apparatus comprising means 26 moving the track.
  • the track moving means 26 is under the control of the signal received from the receiver 2.
  • the photocell is adapted to follow a representation of the desired alignment condition of the track drawn on the chart 15.
  • the representation is drawn to have a width comparable with the dimension of the photocell aperture and with an ink to which the photocell is sensitive in relation to the characteristic of the paper.
  • the pen 11 used on the surveying and recording mode is connected to a reservoir (not shown in FIG. 1) containing an ink to which the photocell is insensitive.
  • the circuit 21 controlling the movement of the photocell 20 comprises a motor 27 deriving a signal from summing amplifier 28. Into the amplifier is fed a standard comparator voltage at 29 and the output 30 from the photocell 20. In this way, the amplifier 28 passes a signal to the motor 27 when the signal 30 exceeds or is less than the standard comparator voltage input 29.
  • the output from the photocell 20 will be dependent upon how much of the width of the representation 31 is covered by the photocell. Increasing coverage of the representation 31 is covered by the photocell. Increasing coverage of the representation 31 will reduce the output signal from the photocell and cause the motor to move the cell away from the representation. Conversely, movement of the photocell too far from the representation will cause an increase in output from the photocell causing the motor to move the photocell towards the representation 31.
  • the operation is as follows.
  • the apparatus is passed over a length of track and in this pass the shadowboard 4 is maintained in a position of detection of reference line 3.
  • Movement of the shadowboard causes movement of the pen 1] on the chart through the action of the control means to the pen including the potentiometer 7 and the motor 9 and gear box 10.
  • the wheel 14 causes movement of the chart under the pen l1 and there is traced on the chart a visual representation of the actual alignment condition of the track.
  • the apparatus When the length of track which it is desired to align has been surveyed, the apparatus is stopped and returned to the starting position on the length of track. An operator then draws, through the irregular curve representing the actual alignment condition of the track, another representation which is the desired alignment condition of the track.
  • the second representation may be a smooth curve averaging the errors noted in the actual alignment condition of the track or it may be an arbitrary curve representing an actual required form of track having the general. parameters indicated by the representation of the actual alignment condition of the track.
  • the components of the apparatus are set up in the alignment mode of the apparatus as shown in FIG. 2.
  • the apparatus is then passed over the length of track the second time but in this instance, it is stopped at predetermined intervals along the length of track.
  • the photocell is moved to locate the representation 31 as the chart 15 moves with movement of the apparatus. Movement of the photocell to locate the line 31 moves the shadowboard to a position representative of the desired alignment condition of the track at the station as determined by the line 31.
  • the track is then moved, if necessary, at the location of the shadowboard 4 to place the track at the shadowboard 4 in a position in which the shadowboard 4 detects the reference line 3.
  • the apparatus described above contains means for creating a visual representation of the actual alignment condition of a length of track and means for following a representation of a required alignment condition of the track and mans responsive to the following means to align the track at stations along the length of track.
  • the apparatus of the invention may include only the components of the alignment condition of the apparatus described above.
  • the visual representation of the actual alignment condition can be derived from other apparatus and placed on the chart recorder 12 in the alignment mode of the present apparatus and the apparatus can then be passed over the predetermined length of track for aligning purposes.
  • Apparatus for aligning railroad track comprising means mounting said apparatus for movement along a length of track, a chart recorder, a chart on the recorder carrying a representation of the desired alignment condition of the length of track, a photocell for following said representation on relative movement of photocell and chart, an electric motor for controlling said photocell, the electric power supply to the motor being the difference of electrical output from the photocell and a standard comparator voltage, and means responsive to said photocell movement for moving the track at a point in said length to correct misalignment of the track.
  • Apparatus for aligning railroad track comprising a track alignment correcting vehicle mounting said apparatus for movement along a length of track, means on said vehicle for mountin a recording medium carrying a representation of the desired a ignment condition of the length of track; means for following said representation, means operatively connected to the following means for converting movement of the following means into an electrical signal representative of the movement of the movement of the following means; reference line establishing means including a radiation transmitter and a radiation receiver; shadow means between said receiver and transmitter; means for moving said shadow means in response to said signal; track moving means on said vehicle and operatively connected to the shadow means; and means to automatically operate the track moving means to move the track and shadow means thereon to place said shadow means in an interference position on the reference line.
  • Apparatus according to claim 2 wherein said moving means comprises an electric motor supplied with operating current proportional to said signal and a signal derived from the position of the shadowboard.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Control Of Position Or Direction (AREA)
  • Automatic Assembly (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Recording Measured Values (AREA)
US855102A 1969-09-04 1969-09-04 Chord liner Expired - Lifetime US3604360A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85510269A 1969-09-04 1969-09-04

Publications (1)

Publication Number Publication Date
US3604360A true US3604360A (en) 1971-09-14

Family

ID=25320357

Family Applications (1)

Application Number Title Priority Date Filing Date
US855102A Expired - Lifetime US3604360A (en) 1969-09-04 1969-09-04 Chord liner

Country Status (9)

Country Link
US (1) US3604360A (cs)
JP (2) JPS5034281B1 (cs)
AT (1) AT323790B (cs)
CS (1) CS187309B2 (cs)
DE (1) DE2042568C3 (cs)
ES (1) ES382808A1 (cs)
FR (1) FR2082929A5 (cs)
GB (1) GB1320366A (cs)
ZA (1) ZA705455B (cs)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902426A (en) * 1972-02-07 1975-09-02 Plasser Bahnbaumasch Franz Method for lining track in a track curve
US4658730A (en) * 1983-12-28 1987-04-21 Canron Corp. Railroad correction apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH669416A5 (cs) * 1986-10-08 1989-03-15 Dreco S A
AT389133B (de) * 1987-01-14 1989-10-25 Vnii Transport Stroitelstvu Automatisches steuersystem fuer das richtorgan einer gleisrichtmaschine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3165073A (en) * 1958-07-28 1965-01-12 Nordberg Manufacturing Co Method of lining curved track
US3380394A (en) * 1965-08-27 1968-04-30 Matisa Materiel Ind Sa Equipment for determining the geometric condition of a track and controlling the slew or lift thereof
US3389469A (en) * 1965-07-05 1968-06-25 Plasser Franz Mobile track correction apparatus
US3463095A (en) * 1966-11-14 1969-08-26 Plasser Bahnbaumasch Franz Track aligning machine
US3494299A (en) * 1967-04-20 1970-02-10 Boyer Jean Jacques Railroad repairing machines
US3504634A (en) * 1966-11-21 1970-04-07 Plasser Bahnbaumasch Franz Mobile track liner

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA675877A (en) * 1963-12-10 B. Blix Weltzin Method of lining curved track
CH467386A (de) * 1962-10-15 1969-01-15 Canron Ltd Auf einem Gleis fahrbare Vorrichtung zum Ausrichten des befahrenen Gleises
DE1239343B (de) * 1964-03-16 1967-04-27 Robel & Co G Gleisrichtmaschine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3165073A (en) * 1958-07-28 1965-01-12 Nordberg Manufacturing Co Method of lining curved track
US3389469A (en) * 1965-07-05 1968-06-25 Plasser Franz Mobile track correction apparatus
US3380394A (en) * 1965-08-27 1968-04-30 Matisa Materiel Ind Sa Equipment for determining the geometric condition of a track and controlling the slew or lift thereof
US3463095A (en) * 1966-11-14 1969-08-26 Plasser Bahnbaumasch Franz Track aligning machine
US3504634A (en) * 1966-11-21 1970-04-07 Plasser Bahnbaumasch Franz Mobile track liner
US3494299A (en) * 1967-04-20 1970-02-10 Boyer Jean Jacques Railroad repairing machines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902426A (en) * 1972-02-07 1975-09-02 Plasser Bahnbaumasch Franz Method for lining track in a track curve
US4658730A (en) * 1983-12-28 1987-04-21 Canron Corp. Railroad correction apparatus

Also Published As

Publication number Publication date
DE2042568B2 (de) 1981-04-09
GB1320366A (en) 1973-06-13
ZA705455B (en) 1971-04-28
DE2042568A1 (de) 1971-03-18
FR2082929A5 (cs) 1971-12-10
AT323790B (de) 1975-07-25
JPS5413641B1 (cs) 1979-06-01
DE2042568C3 (de) 1982-01-07
CS187309B2 (en) 1979-01-31
JPS5034281B1 (cs) 1975-11-07
ES382808A1 (es) 1972-12-16

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