EP0117028A1 - Fastening railway rails - Google Patents

Fastening railway rails Download PDF

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Publication number
EP0117028A1
EP0117028A1 EP84300085A EP84300085A EP0117028A1 EP 0117028 A1 EP0117028 A1 EP 0117028A1 EP 84300085 A EP84300085 A EP 84300085A EP 84300085 A EP84300085 A EP 84300085A EP 0117028 A1 EP0117028 A1 EP 0117028A1
Authority
EP
European Patent Office
Prior art keywords
sleeper
clip
rail
assembly according
gap
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.)
Withdrawn
Application number
EP84300085A
Other languages
German (de)
English (en)
French (fr)
Inventor
Brian George Conroy
John Robert Hewitt
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.)
Pandrol Ltd
Original Assignee
Pandrol Ltd
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 GB838300449A external-priority patent/GB8300449D0/en
Application filed by Pandrol Ltd filed Critical Pandrol Ltd
Publication of EP0117028A1 publication Critical patent/EP0117028A1/en
Withdrawn legal-status Critical Current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
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/02—Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor
    • E01B9/32—Fastening on steel sleepers with clamp members
    • E01B9/34—Fastening on steel sleepers with clamp members by resilient steel clips
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
    • E01B3/16—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from steel

Definitions

  • a railway sleeper in the form of an inverted trough which has at least one of its two side walls inclined to the vertical so that the sleeper is narrower at the top than it is at the bottom, the sleeper having a gap in its upper side such that the sleeper can support a railway rail with the bottom of a flange, which is at the bottom of the rail, in said gap and lower than the top of the sleeper.
  • an assembly comprising a railway sleeper in the form of an inverted trough which has at least one of its two side walls inclined to the vertical so that the sleeper is narrower at the top than it is at the bottom, the sleeper having a gap in its upper side, a railway rail having the bottom of a flange, which is at the bottom of the rail, in said gap and lower than the top of the sleeper and a clip engaging the sleeper and one side of the flange and holding the rail down, the clip having a part inside the sleeper at its top, said part being constrained by the narrowness of the top of the sleeper so that the clip cannot turn through a large angle about a vertical axis.
  • Part of the top of the sleeper could overhang and hold down the other side of the flange of the rail.
  • a clip which is suitable for use in an assembly according to the second aspect of the invention, the clip comprising a bent steel bar having substantially the same..shape of cross-section over its entire length and having a long lower limb and, above it, a shorter upper limb, the two limbs extending in the same general direction as one another away from a bend which joins them and there being an up-turned part at that end of the lower limb which is remote from the bend, the lower limb being slightly arched.
  • a clip D shown in Figures 1 and 2 has been made by bending a bar of resilient steel.
  • the shape of cross-section of the bar is substantially rectangular and substantially the same over the whole length of the bent bar, although there are small and unavoidable departures from the truly rectangular cross-section, due to the bending process.
  • the clip consists of two limbs A and B extending in the same general direction as one another (to the right, considering Figure 1) away from a bend C which joins them, the limb B being below the limb A and longer than the limb A.
  • a first portion 1 of it which extends over by far the greater part of the length of the clip, is nearly straight, being slightly arched at lA, and horizontal, the left-hand end of the first portion being adjoined by a second portion 2 which extends upwardly and to the left, this being followed by a third portion 3 which extends upwardly, then a fourth portion 4 which extends upwardly and to the right, then a fifth portion 5 which extends to the right, a sixth portion 6 which extends downwardly and to the right, a seventh portion 7 which extends to the right and an eighth portion 8 which extends upwardly and to the right.
  • the right-hand end of the arch in the first portion 1 is adjoined by a ninth portion 9 which extends upwardly and to the right at an angle of between 30° and 80°, in the illustrated case about 65 0 , to the horizontal.
  • Figures 1 and 2 show a steel railway sleeper in the form of an inverted trough of triangular cross-section.
  • the side walls of the trough are referenced 11 and 12. Both of them are inclined to the vertical (although in principle one could be vertical and the other inclined to the vertical) so that the sleeper is narrower at the top than it is at the bottom.
  • a part has been cut out of the sleeper to form a gap 13. Portions have been cut out of the side walls and parts of the side walls, between the cut out portions, have been bent over inwardly to form ledges 11A and 12A.
  • a railway rail 14 of a light-weight narrow-gauge railway has a flange 15 at its foot and the bottom of the flange lies in the gap 13 and lies on the ledges 11A and 12A, whereas a portion 15A of the flange, between the side walls 11 and 12, has no part of the trough vertically beneath it.
  • the whole of the flange 15 is lower than the top 16 of the sleeper.
  • the rail is located by vertical faces 21 and 22, and above the faces 21 there are inclined faces 23, one on each of the side walls 11 and 12, to assist the operation of placing the rail in position.
  • a portion 17 of the sleeper overhangs the flange 15 on one side of the rail, i.e. the side nearer the other rail which lies on the same sleeper, and holds the rail down on that side.
  • the other side of the rail is held down by the clip D, of which the junction between the parts lA and 9 bears downwardly on the upper face of the flange.
  • the clip is initially put, in a factory or depot, in a preparatory position, to the left of the position shown in Figure 1, with the legs A and B of the clip forced apart by the sleeper and the free end of the portion 9 of the clip vertically below the portion 18 of the top of the sleeper, the portion 7 of the clip engaging the top of the sleeper near the top of a ramp 19 on the sleeper.
  • This ramp prevents the clip falling away from the sleeper when it is held in various positions during storage, transportation and assembly.
  • the clip is driven to the right to the illustrated position, where the portion 7 of the clip is still on the ramp 19, which prevents the clip from moving to the left.
  • the ramp 19 is preferably inclined to the horizontal by an angle equal to or greater than the angle which the upper face of the flange 15 makes with the horizontal.
  • the top of the sleeper at its extreme left-hand end is flat and horizontal and the left-hand end of the ramp 19 is a few millimetres from the left-hand end of the sleeper.
  • FIG. 3 shows an assembly in which it is only necessaryy to remove the clips, raise the rails and the sleeper vertically, remove the sleeper from the rails, put a new sleeper in its place on the rails, lower the rails and the sleeper and re-insert the clips.
  • each of the overhanging portions 17 is on the left-hand side of its associated rail, the right-hand clip, which is substantially as shown in Figure 1, being driven into position as described above with reference to Figure 1 and the other clip, of exactly the same shape as the right-hand clip, being positioned by inserting its leg B into a hole 25 which passes through the flat top 16 of the sleeper.
  • the portion 7 of this clip is caused to engage the top of a ramp 19 or a flat horizontal surface 26 between the top of the ramp and the hole 25 and then the clip is driven to the left into a position where its portion 9 bears upon the flange of the rail.
  • the right-hand clip could have its leg B inserted in a hole like the hole 25, between the rail and the end of the sleeper.
  • the sleeper has the same shape of cross-section as that shown in Figure 3.and.two gaps 13 and one hole 25 in its top.
  • the example differs from that shown in Figures 1 and 2 as follows.
  • a rib 28 extends across the top of the sleeper to prevent the clip moving away from the rail and the portion 7 of the clip bears on the flat top of the sleeper between this rib and the end of the sleeper in the above-mentioned preparatory position of the clip.
  • the top of the arched portion lA of the clip is vertically below the bottom of the portion 7.
  • the gap 13 is bounded by vertical faces 30 below which there are inclined faces 31 and the portion 17 has a slightly different shape.
  • the clip D for the right-hand rail is shown, inserted through a hole 25, and there is an overhanging portion 17 on the other side of the right-hand rail.
  • overhanging portions 17 which is an arrangement which is particularly useful for railways in mines
  • the sleepers shown in Figures 3 to 5 could have the ledges 11A and 12A, as in the example according to Figures 1 and 2.
  • the parts of the side walls of the sleeper between the above-mentioned cut out portions could be bent over outwardly, instead of inwardly, to form the ledges 11A and 12A, in other words the ledges could extend away from one another instead of towards one another as shown in Figure 2.
  • Figures 3 to 5 also show outwardly- directed flanges 27 at the bottom of the side walls 11 and 12 of the sleeper, in order to strengthen the sleeper. These flanges could be provided on the sleeper shown in Figures 1 and 2.
  • each clip has a width which is equal to or slightly less than the width of the interior of the top of the sleeper so that part of the clip which is inside the sleeper is contrained so that the clip cannot turn, or can turn through only a few degrees, preferably no more than ten degrees, about a vertical axis.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Railway Tracks (AREA)
  • Bridges Or Land Bridges (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
EP84300085A 1983-01-07 1984-01-06 Fastening railway rails Withdrawn EP0117028A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8300449 1983-01-07
GB838300449A GB8300449D0 (en) 1983-01-07 1983-01-07 Fastening railway rails
GB08308292A GB2133441B (en) 1983-01-07 1983-03-25 Fastening railway rails
GB8308292 1983-03-25

Publications (1)

Publication Number Publication Date
EP0117028A1 true EP0117028A1 (en) 1984-08-29

Family

ID=26284867

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84300085A Withdrawn EP0117028A1 (en) 1983-01-07 1984-01-06 Fastening railway rails

Country Status (7)

Country Link
EP (1) EP0117028A1 (enrdf_load_stackoverflow)
AU (1) AU2300883A (enrdf_load_stackoverflow)
ES (1) ES8501826A1 (enrdf_load_stackoverflow)
FI (1) FI840029A7 (enrdf_load_stackoverflow)
GB (1) GB2133441B (enrdf_load_stackoverflow)
GR (1) GR81707B (enrdf_load_stackoverflow)
WO (1) WO1984002728A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2380470C2 (ru) * 2004-06-11 2010-01-27 Пэндрол Лимитед Рельсовое скрепление в железнодорожной передвигаемой рельсовой подушке, упругий держатель рельсового скрепления и железнодорожная подкладка для использования с рельсовым скреплением

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2168097B (en) * 1984-12-06 1987-12-31 Pandrol Ltd Fastening railway rails
ZA200203392B (en) * 1999-11-12 2003-04-14 Strydom Matthys Pretorius Railway fastening clip.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1380235A (en) * 1921-01-11 1921-05-31 John C Moell Tie
US1533000A (en) * 1924-11-11 1925-04-07 Gurnovitz John Tie
FR2470188A1 (fr) * 1979-11-27 1981-05-29 Omark Industries Inc Traverse en acier de voie ferree
GB2086966A (en) * 1980-11-01 1982-05-19 Serni Ltd Railway sleepers with rail clamping devices

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB293221A (en) * 1927-08-16 1928-07-05 Edward Sinclair Bremner Macken Improvements in or relating to metal railway sleepers
GB413991A (en) * 1934-02-10 1934-07-26 William Baillie Improvements in and relating to light railway tracks
GB854755A (en) * 1957-05-10 1960-11-23 Henry Donald Nelson Improvements in or relating to railway track

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1380235A (en) * 1921-01-11 1921-05-31 John C Moell Tie
US1533000A (en) * 1924-11-11 1925-04-07 Gurnovitz John Tie
FR2470188A1 (fr) * 1979-11-27 1981-05-29 Omark Industries Inc Traverse en acier de voie ferree
GB2086966A (en) * 1980-11-01 1982-05-19 Serni Ltd Railway sleepers with rail clamping devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2380470C2 (ru) * 2004-06-11 2010-01-27 Пэндрол Лимитед Рельсовое скрепление в железнодорожной передвигаемой рельсовой подушке, упругий держатель рельсового скрепления и железнодорожная подкладка для использования с рельсовым скреплением

Also Published As

Publication number Publication date
AU2300883A (en) 1984-07-12
ES528729A0 (es) 1984-12-16
WO1984002728A1 (en) 1984-07-19
ES8501826A1 (es) 1984-12-16
FI840029A0 (fi) 1984-01-05
GB2133441B (en) 1986-03-26
FI840029A7 (fi) 1984-07-08
GB8308292D0 (en) 1983-05-05
GR81707B (enrdf_load_stackoverflow) 1984-12-12
GB2133441A (en) 1984-07-25

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19840126

AK Designated contracting states

Designated state(s): AT BE DE FR GB IT SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19851213

RIN1 Information on inventor provided before grant (corrected)

Inventor name: CONROY, BRIAN GEORGE

Inventor name: HEWITT, JOHN ROBERT