US3645209A - Tie indexers - Google Patents

Tie indexers Download PDF

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Publication number
US3645209A
US3645209A US77438A US3645209DA US3645209A US 3645209 A US3645209 A US 3645209A US 77438 A US77438 A US 77438A US 3645209D A US3645209D A US 3645209DA US 3645209 A US3645209 A US 3645209A
Authority
US
United States
Prior art keywords
shoe
tie
movement
ballast
workhead
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
US77438A
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English (en)
Inventor
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
Original Assignee
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
Application granted granted Critical
Publication of US3645209A publication Critical patent/US3645209A/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
    • E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
    • E01B29/24—Fixing or removing detachable fastening means or accessories thereof; Pre-assembling track components by detachable fastening means
    • 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

Definitions

  • a profiled edge is provided on a ballast- [22] Filed: Oct 2, 1970 engaging shoe at the bottom of the indexer such that as the machine moves forward and the indexer plows through the PP 77,438 ballast the profiled edge engages a tie and climbs up and over the tie against the biasing action of the hydraulic pressure.
  • An indexing finger is pivotally mounted on the side of the shoe [52] U.S.Cl ..l04/l2, 104/1, 1&41/69, and p j beneath the bottom profiled g Such that on [51] Int Cl E01b37/00 encountering the edge of a tie during forward motion of the [58] Field 6 9 1043 vehicle the indexer is pivoted and trips a switch which provides a command signal to terminate the forward travel of the workhead. The fact that the profiled edge will have climbed [56] References Cited on to the tie insures that the finger is always encountered at a UNITED STATES PATENTS uniform position from its pivot point resulting in a uniform distance of travel of the workhead prior to tripping the switch.
  • indexers In an attempt to automate the functions of railroad maintenance machinery, particularly tamping machines, indexers have been provided which project beneath the front of the tamping machine so as to encounter a tie or a tie plate during passage of the tamping machine along the track and operate to automatically arrest the forward movement of the machine so that it will be stopped over a work station, in the case of a tamping machine, a tie to be tamped.
  • indexers have been proposed, some of them operating a valve device to apply the vehicle brake others tripping an electrical switch to cause braking electrically.
  • the operationally successful types of tie indexers has been the long-lever arm-type which is mounted beneath the front of a tamping machine and which, as the machine moves along the track and the indexer engages a tie, pivots in its mountings to trip a switch and apply the brakes to stop the machine with the tamping heads located above the tie to be tarnped.
  • one of the drawbacks with this type of indexing device has been that it requires substantially uniform vertical spacing of the ties in order to be able to repeatedly stop the machine at the same point over its work station.
  • the known type of indexer could travel right over the top of a very low tie without detecting it at all, or, on detecting the tie (because only the tip of the indexer would be encountered) would permit the machine to move forward a relatively long distance before pivoting the indexer through the angle necessary for it to trip the brake switch.
  • the extremely high tie would encounter the indexer some 4 inches further up its shank, resulting in a much shorter distance of machine travel before the indexer pivoted sufficiently to trip the brake switch. Consequently, a different application point for the brakes exists for the same machine depending on the height of the tie. This gives rise to a lack of unifonnity in positioning of the machine above successive work stations if the track is bad and the ties are of varying heights.
  • a railway tie indexing device for locating a track maintenance workhead, mounted on a vehicle chassis for movement along the track, above a work station; comprises a ballast-engaging shoe mounted for movement with said workhead; means for operatively resiliently biasing said shoe downwardly into the ballast; a profiled lower edge on said shoe adapted to ride up and over a tie encountered in its path of movement along the track against the action of said biasing means; an indexing finger mounted on said shoe for movement relative thereto and projecting beneath said lower edge; and switch means activated by the movement of the finger relative to the shoe to terminate workhead forward movement.
  • the pivotal movement of the finger moves a cam which trips the switch.
  • the shoe is mounted on a cylinder of a piston and cylinder device, the piston of which is fixed relative to the chassis, the shoe being vertically reciprocable on the cylinder in guides fixed to the chassis.
  • the resilient biasing of the shoe into engagement with the ballast is achieved by a source of hydraulic pressure, including an accumulator which acts on said piston and cylinder device.
  • FIG. 2 is a detail looking in the direction of the arrows IIII of FIG. 1.
  • Pivotally mounted to the shoe 10 is an indexing finger 35 which is spring loaded against a stop so as to be capable of being pushed through the ballast without pivoting.
  • the finger 35 On contacting a tie the finger 35 is caused to rotate about its pivot point 36 by the forward movement of the head in the direction of the arrow 34. Rotation of the finger 35 causes the segment of the pinion 38 attached thereto to move the pinion 39 to which it is engaged from right to left as seen in FIG. 1 against the loading action of the spring 40 which maintains the finger 35 in normal operative position against it stop.
  • a railway tie indexing device for locating a track maintenance workhead, mounted on a vehicle chassis for movement along the track, above a work station; comprising a ballast engaging shoe mounted for movement with said workhead; means for operatively resiliently biasing said shoe downwardly into the ballast; a profiled lower edge on said shoe adapted to ride up and over a tie encountered in its path of movement along the track, against the action of said biasing means; a loaded indexing finger pivotally mounted on said shoe for pivotal movement thereon and relative thereto, said finger projecting beneath said lower edge; and switch means actuated by the pivotal movement of the finger to terminate workhead forward movement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
US77438A 1970-10-02 1970-10-02 Tie indexers Expired - Lifetime US3645209A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7743870A 1970-10-02 1970-10-02

Publications (1)

Publication Number Publication Date
US3645209A true US3645209A (en) 1972-02-29

Family

ID=22138045

Family Applications (1)

Application Number Title Priority Date Filing Date
US77438A Expired - Lifetime US3645209A (en) 1970-10-02 1970-10-02 Tie indexers

Country Status (6)

Country Link
US (1) US3645209A (de)
AT (1) AT312658B (de)
AU (1) AU461270B2 (de)
CA (1) CA950269A (de)
DE (1) DE2149163C3 (de)
GB (1) GB1369824A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3895582A (en) * 1973-12-13 1975-07-22 Canron Inc Ballast reaction rail clamps
US3943858A (en) * 1973-02-12 1976-03-16 Rexnord Inc. Machine for setting tie plates and the like
US4080903A (en) * 1976-03-05 1978-03-28 Matisa Industries S.A. Process and apparatus for laying ties for a railway track
US4522127A (en) * 1983-03-07 1985-06-11 Southern Railway Company Railway tie plug driving apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3177813A (en) * 1960-09-09 1965-04-13 Stewart John Kenneth Railroad maintenance device
US3230895A (en) * 1963-05-20 1966-01-25 Stewart John Kenneth Externally engaging lifting jack frame
US3299833A (en) * 1963-03-28 1967-01-24 John K Stewart Externally engaging lifting jack frame
US3504635A (en) * 1968-01-15 1970-04-07 Canada Iron Foundries Ltd Workhead positioning means

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1014140B (de) * 1955-06-08 1957-08-22 Plasser Bahnbaumasch Franz Stopfmaschine fuer Gleise mit Querschwellen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3177813A (en) * 1960-09-09 1965-04-13 Stewart John Kenneth Railroad maintenance device
US3299833A (en) * 1963-03-28 1967-01-24 John K Stewart Externally engaging lifting jack frame
US3230895A (en) * 1963-05-20 1966-01-25 Stewart John Kenneth Externally engaging lifting jack frame
US3504635A (en) * 1968-01-15 1970-04-07 Canada Iron Foundries Ltd Workhead positioning means

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3943858A (en) * 1973-02-12 1976-03-16 Rexnord Inc. Machine for setting tie plates and the like
US3895582A (en) * 1973-12-13 1975-07-22 Canron Inc Ballast reaction rail clamps
US4080903A (en) * 1976-03-05 1978-03-28 Matisa Industries S.A. Process and apparatus for laying ties for a railway track
US4522127A (en) * 1983-03-07 1985-06-11 Southern Railway Company Railway tie plug driving apparatus

Also Published As

Publication number Publication date
AT312658B (de) 1974-01-10
CA950269A (en) 1974-07-02
DE2149163C3 (de) 1981-04-30
AU3413871A (en) 1973-04-05
DE2149163B2 (de) 1980-06-04
DE2149163A1 (de) 1972-04-06
AU461270B2 (en) 1975-05-22
GB1369824A (en) 1974-10-09

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