US3343496A - Method for lining curves - Google Patents

Method for lining curves Download PDF

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Publication number
US3343496A
US3343496A US444354A US44435465A US3343496A US 3343496 A US3343496 A US 3343496A US 444354 A US444354 A US 444354A US 44435465 A US44435465 A US 44435465A US 3343496 A US3343496 A US 3343496A
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US
United States
Prior art keywords
point
track
curve section
track curve
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
US444354A
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English (en)
Inventor
Warnick Adolf
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.)
Franz Plasser Bahnbaumaschinen Industrie GmbH
Original Assignee
Franz Plasser Bahnbaumaschinen Industrie 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
Priority claimed from AT116465A external-priority patent/AT287040B/de
Application filed by Franz Plasser Bahnbaumaschinen Industrie GmbH filed Critical Franz Plasser Bahnbaumaschinen Industrie GmbH
Application granted granted Critical
Publication of US3343496A publication Critical patent/US3343496A/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
    • 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 the lining of railroad track curves to produce a track curve section constituting a substantially circular arc extending between two end points connected by a physical or imaginary chord.
  • a first portion of the track curve section extends between a first one of the end points and a first intermediate point, this forming a first and lined portion of the circular arc.
  • Successive intermediate points in a second portion of the track curve section extending between the first intermediate point and a second one of the end points are lined as the chord is advanced along the track, with one of its ends always in one lined track point and another lined track point adjacent to the lined end point above the chord.
  • the two straight lines are the ordinates of the first and second intermediate points, respectively. If desired, the distances of the ordinates from the respective end points may be the same, in which case they are of the same length after the second intermediate track curve section point has been lined, requiring no calculation.
  • two intersecting secants are laid through respective ones of the end points of the track curve section, with the points of intersection lying within or outside the circular arc.
  • the first secant extends from the first end point to the second intermediate point and the second secant extends from the second end point to the first and lined intermediate point, with the point of intersection of the secants lying within the circular arc.
  • the first secant extends from the first end point through the first intermediate point and the second secant extends from the second end point through the second intermediate point, with the point of intersection of the secants outside the circular arc.
  • FIGS. 1 to 6 schematically illustrate difierent modifications of lining methods and apparatus according to this invention.
  • FIG. 1 there is shown a railroad track curve section G forming a circular arc of the length d.
  • a chord 5 extends between the end points 1 and 4 of the track curve section G.
  • a first track curve section portion a extending from end point 1 to point 2 has previously been lined while point 3 of the track curve section is to be lined in accordance with this invention to line the second portion b+c of the track curve section ex tending from previously aligned point 2 to point 4.
  • the correct location of track point 3 is obtained by measuring the ordinate k of aligned point 2 in respect of chord 5, and moving the track at point 3 until its ordinate k in respect of chord 5 has the geometrically corresponding parameter.
  • the corresponding parameter may be readily calculated on the basis of relationships in the known geometry of circles.
  • the ordinate of the lined point or station 2 has the same distance from the initial point or station 1 of the track curve section G as the ordinate of the point or station 3 to be lined has from the end point or station 4.
  • stations 2 and 3 are not symetrically located on the track curve section G.
  • theordinate I2 of aligned station 2 is measured in respect of chord 5 and the geometrically corresponding length of ordinate h of station 3 on the circular arc G is determined by means of a well known geometric theorem.
  • a simple arrangement may be provided to consist of two means each defining a straight line, such as rods x and y, interconnected intermediate their ends by a pivot 6.
  • the pivot 6 lies between chord 5 and the track curve G and the two rods are so positioned that rod x passes through aligned end station 1 of the track curve while rod y passes through aligned intermediate station 2 and the other end station 4 of the track curve section G.
  • the two rods form secants of the circular arc and, according to the well known theorem of secants, the products of the secant sections 2.1 and gi of the two intersecting secants x and y must be equal for a circular arc.
  • the lengths of secant sections g, i and 2 may be readily measured and the product g.i is thus known, the length of 7 may be readily calculated, e being known and the product e.f being equal to g.i.
  • the length of 1 determines the location of station 3, of course, and the track is moved until its point 3 defines the length calculated for 1.
  • the apparatus After station 3 of the track curve has thus been aligned, the apparatus is advanced until station 2 becomes end station 1 and aligned station 3 becomes station 2, and the aligning procedure is repeated.
  • FIG. 3 differs from that of FIG. 2 primarily in that the secants intersect in a pivot 6' outside the circular arc G.
  • afirst rod of the length k is laid through lined track points 1 and 2.
  • a :second rod of the length n extends from the interconmecting pivot 6' of the two rods through track section end point 4. If the two intersecting rods are to form secants of a circular are over chord 5, the product of the length k of the one secant and the distance I from the point of intersection 6 .to the point of the are 2 must be equal to the product of the length n of the other secant and the distance m from the point of intersection 6 to the point of the arc '3 on the other secant.
  • the distance In is calculated in the manner indicated in connection with the similar embodiment of FIG. 2 and point 3 of the track curve section is then moved accordingly until the distance from pivot 6 to the track has the calculated .value.
  • FIG. 3 The schematically illustrated procedure of FIG. 3 is illustrated in connection with three specific structural ernbodiments in FIGS. 4 to 6.
  • station 3 of the track curve section G is to be lined so that the curve section becomes a circular arc.
  • the point of intersection 6' of the two means ;7 and 8 defining two straight intersecting lines is mounted transversely movable in relation to the track.
  • the two straight line defining means may be tautly drawn ropes each having one of their ends attached to a pivot pin mounted on a bearing threadedly supported on a spindle 13 extending transversely of the track. In this manner, the pivot pin 6' may be moved transversely in relation to the track rails upon rotation of -the spindle.
  • stations 1, 2, 3 and 4 of the track curve section are constituted by simple trucks mounted on the track rails and the straight lines -or secants 7 and 8 extend through the midpoints of the trucks.
  • the points of intersection i.e. points '1, 2, '3 and 4 of the circular arc may be chosen at any constant spacing from the track rails as long as the spacing of all points is the same.
  • Points 1 and 2 forming part of the lined track curve section, rope or rod 7 is attached at one end to the aligned end station 1 and with its other end to pivot pin 6'. The latter is then transversely moved until a straight line extends between points 1, 2 and 6.
  • the other rope or rod 8 has its two ends attached, respectively, to point 6' and the other end point 4 of the track curve section. After point 6' has been moved in the indicated manner, track point 3 needs to be moved for lining until it comes to hem the straight line 8.
  • Rod 9 extends through lined track points 1 and 2 while rod 10 passes from pivot 6 through track point 3 to be lined.
  • Another rod is connected between track point 3 and track curve section end point 4 and point 3 is transversely moved until the indicated angle between rods 10 and 11 is zero, i.e. until the two rods form a straight line.
  • the ordinates of the lined point 2 and point 3 to be lined are preferably indicated on such a scale by two indicating hands that the two hands are in line when point 3 has been moved into the desired posiiton.
  • a method of lining a track curve to produce a track curve section constituting .a substantially circular are extending between two end points, a chord extending between said end points and a first portion of the track curve section extending between a first one of said end points and a first intermediate point of the track curve section having been lined to form a first portion of said circular arc, the steps of establishing the length of a first straight line from the chord tothe first intermediate point, establishing ,a second straight line from the chord to a second intermediate point in a second portion of the track curve section extending between the first intermediate point and the second end point, the second straightline being geometrically analogous to the first straight line and its length being accordingly derivable from the length of the first straight line on the basis of geometrical theorems concerning the circle, and moving the second track curve section portion perpendicularly to the direction of elongation of the track until the second straight line has the derived length from the chord to the second intermeditae point.
  • a method of lining a track curve to produce a'track curve section constituting a substantially circular are extending between two end points, including the steps of establishing a chord between said end points, a first portion of the track curve section extending between a first one of said end points and a first intermediate point of the track curve section having been lined to form a first portion of the circular arc, establishing an ordinate from the chord to the first intermediate point, establishing a second ordinate from the chord to a second intermediate point in a second portion of the track curve section extending between the first intermediate point and the second end point, the length of the second ordinate being derivable from the length of the first-named ordinate on the basis of geometrical theorems concerning the circle, and moving the second track curve section portion perpendicularly to the direction of elongation of the track until the second ordinate has the derived length from the chord to the second intermediate point.
  • a method of lining a track curve to produce a track curve section constituting a substantially circular are extending between two end points, a first portion of the track curve section extending between a first one of said end points and a first intermediate point of the track curve section having been lined to form a first portion of said circular arc, and a second portion of the track curve section extending between the first intermediate point and the second end point of the track curve section, a second intermediate point in said second portion to be lined, the steps of laying two intersecting secants through respective ones of said end points and intermediate points, the length of the secant through the lined intermediate point being determined and the length of the secant through the second intermediate point being derivable from said determined length on the basis of geometric theorems concerning the secants of a circular arc, and moving the second track curve section portion perpendicularly to the direction of elongation of the track until the secant through the second intermediate point has the derived length to the second intermediate point.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Numerical Control (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Bakery Products And Manufacturing Methods Therefor (AREA)
  • Image Generation (AREA)
  • Braking Arrangements (AREA)
US444354A 1964-04-03 1965-03-31 Method for lining curves Expired - Lifetime US3343496A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DEW36494A DE1217423B (de) 1964-04-03 1964-04-03 Verfahren zum Ausrichten eines Gleises sowie Einrichtung zur Durchfuehrung des Verfahrens
DEW36529A DE1213460B (de) 1964-04-03 1964-04-08 Verfahren zum Ausrichten eines Gleises der Seite oder der Hoehe nach sowie Einrichtung zur Durchfuehrung des Verfahrens
DEW36597A DE1239719B (de) 1964-04-03 1964-04-17 Einrichtung zum Ausrichten eines Gleises der Seite oder der Hoehe nach
AT116465A AT287040B (de) 1965-02-10 1965-02-10 Verfahren und Vorrichtung zur Behebung von Richtungsfehlern eines Gleises

Publications (1)

Publication Number Publication Date
US3343496A true US3343496A (en) 1967-09-26

Family

ID=27421463

Family Applications (2)

Application Number Title Priority Date Filing Date
US444354A Expired - Lifetime US3343496A (en) 1964-04-03 1965-03-31 Method for lining curves
US445667A Expired - Lifetime US3292557A (en) 1964-04-03 1965-04-05 Method for lining curves

Family Applications After (1)

Application Number Title Priority Date Filing Date
US445667A Expired - Lifetime US3292557A (en) 1964-04-03 1965-04-05 Method for lining curves

Country Status (5)

Country Link
US (2) US3343496A (de)
AT (2) AT294889B (de)
CH (2) CH439363A (de)
DE (4) DE1217423B (de)
GB (3) GB1107582A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4497255A (en) * 1981-12-23 1985-02-05 Franz Plasser Bahnbaumaschinen Industriegesellschaft M.B.H. Mobile track alignment machine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT309499B (de) * 1966-11-14 1973-08-27 Plasser Bahnbaumasch Franz Vorrichtung an zur Messung, Registrierung und bzw. oder Korrektur der Lage von Gleisen dienenden Fahrzeugen, insbesondere fahrbaren Gleisrichtmaschinen, Gleismeßwagen od.dgl.
US3604359A (en) * 1969-04-04 1971-09-14 Railway Maintenance Corp Apparatus for correcting railroad track
AT336662B (de) * 1972-02-07 1977-05-25 Plasser Bahnbaumasch Franz Verfahren und maschine zum messen und gegebenenfalls korrigieren der seitlichen abweichungen eines gleises, insbesondere eines gleisbogens, nach einem leitstrahl
AT323787B (de) * 1972-03-14 1975-07-25 Plasser Bahnbaumasch Franz Anordnung zur korrektur von lagefehleen in gleisen
EP0089702B1 (de) * 1982-03-24 1985-10-30 Matisa Materiel Industriel S.A. Verfahren zur Steuerung einer Gleisrichtmaschine und Vorrichtung dafür

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB855835A (en) 1957-03-13 1960-12-07 William Carl Mccormick Improvements in or relating to the correction of irregularities in tracks and railroads
AT227749B (de) 1959-05-29 1963-06-10 Plasser Bahnbaumasch Franz Verfahren zum Ausgleichen von Richtungsfehlern in Gleisen
AT240398B (de) * 1961-05-18 1965-05-25 Plasser Bahnbaumasch Franz Vorrichtung an Gleisrichtmaschinen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4497255A (en) * 1981-12-23 1985-02-05 Franz Plasser Bahnbaumaschinen Industriegesellschaft M.B.H. Mobile track alignment machine

Also Published As

Publication number Publication date
GB1107467A (en) 1968-03-27
DE1534082B2 (de) 1978-03-16
DE1239719B (de) 1967-05-03
GB1107581A (en) 1968-03-27
AT294889B (de) 1971-12-10
DE1534082C3 (de) 1979-05-31
CH430779A (de) 1967-02-28
CH439363A (de) 1967-07-15
AT289176B (de) 1971-04-13
US3292557A (en) 1966-12-20
DE1534082A1 (de) 1969-07-10
GB1107582A (en) 1968-03-27
DE1217423B (de) 1966-05-26
DE1213460B (de) 1966-03-31

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