EP0161786A1 - Système de fixation d'un rail de chemin de fer sur une traverse de chemin de fer - Google Patents

Système de fixation d'un rail de chemin de fer sur une traverse de chemin de fer Download PDF

Info

Publication number
EP0161786A1
EP0161786A1 EP85302459A EP85302459A EP0161786A1 EP 0161786 A1 EP0161786 A1 EP 0161786A1 EP 85302459 A EP85302459 A EP 85302459A EP 85302459 A EP85302459 A EP 85302459A EP 0161786 A1 EP0161786 A1 EP 0161786A1
Authority
EP
European Patent Office
Prior art keywords
rail
yoke
baseplate
railway
base plate
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Withdrawn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
EP85302459A
Other languages
German (de)
English (en)
Inventor
Barry Marshall
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.)
AE PLC
Original Assignee
AE PLC
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 AE PLC filed Critical AE PLC
Publication of EP0161786A1 publication Critical patent/EP0161786A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • E01B9/38—Indirect fastening of rails by using tie-plates or chairs; Fastening of rails on the tie-plates or in the chairs
    • E01B9/44—Fastening the rail on the tie-plate
    • E01B9/46—Fastening the rail on the tie-plate by clamps
    • E01B9/48—Fastening the rail on the tie-plate by clamps by resilient steel clips
    • E01B9/486—Fastening the rail on the tie-plate by clamps by resilient steel clips the clip being a shaped plate
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B23/00—Easily dismountable or movable tracks, e.g. temporary railways; Details specially adapted therefor
    • E01B23/02—Tracks for light railways, e.g. for field, colliery, or mine use
    • E01B23/04—Fastening or joining means

Definitions

  • the present application relates to the securing of a railway rail to a railway sleeper particularly by means of a spring clip and a baseplate.
  • ATC asymmetrical trapped conventional
  • a system for securing a railway rail to a railway sleeper which comprises a baseplate and two spring clips, the baseplate including a central region arranged to receive the rail and on each side of the central region a lateral region, each lateral region having a yoke adjacent the central region and a generally planar portion extending away from the yoke, each spring clip being so dimensioned to extend beneath the yoke and to engage the flange of the rail, the undersurface of the yoke and the planar portion of the lateral portion of the base plate.
  • this fastening assembly can be very easily assembled or taken apart 'in situ'. It also offers the distinct advantage of being a very low assembly, thereby enabling other moving or fixed components to use or be attached to the rail without obstruction.
  • the under-rail height is very small and it has been found that the system can provide high toe loads and good creep properties. It is therefore particularly suitable in applications involving either ATC rail used in mines or rail trackwork switches, crossings and turnouts.
  • the sleeper may be of any type such as concrete, metal or timber, and the baseplate may be attached to it by any suitable means such as bolts screws or nails.
  • the baseplate may have holes or other facilities enabling it to be screwed to timber ties or sleepers or otherwise suitably fixed to steel or other sleepers or trackway bases.
  • the baseplate is of mild steel and pressed to shape as a single component.
  • the yoke on each side is formed by an inverted-L raised section or an upward fold in the baseplate parallel with the intended position of the rail, and a slot on each side of the fold defining the yoke.
  • the slot length is preferably only marginally longer than the width of the spring clip so as to prevent any tendency for the clip to twist horizontally.
  • the underside of the top length of one or both slots may act as the reaction point to the upper surface of the assembled clip.
  • each end of the baseplate has a turned-up portion.
  • This turned-up portion may act as a 'positive lock' confirming when the clip is in the correctly assembled position.
  • each spring clip is of spring steel and is preferably generally chevron-shaped so that one end terminates in a V while at the other end there is a corresponding V cut out to define two toes.
  • the V-end and the two toes are turned up to facititate assembly through the baseplate slots and on to the rail foot.
  • the spring clip may be rectangular, the chevron shape is preferred since it can enable the spring clip to absorb higher stresses safely and can accommodate slight mis-alignments of the rail and clip.
  • the clip may be suitably shaped to ensure that the correct toe load pressure is applied to the rail foot when components are fully assembled.
  • a rail 11 is secured to a sleeper 12 by means of a baseplate 13 and a pair of spring clips 14.
  • the rail 11 is generally I-shaped in section but is asymmetrical. Thus it has two similar flanges 15 constituting the rail foot but the head section comprises a short thick inner rail head 16 and athinner elongated outer rail head 17.
  • the baseplate 13 shown in Figures 1 and 3 is of mild steel and generally rectangular in shape. It has a central portion 21, whose width is the same or a little greater than that of the rail foot 15, 15; on each side, of the central portion 21, an inverted U-section fold 22, and beyond the folds 22 a generally planar extension 23. Each fold 22 has a pair of parallel slots 24 one in each inclined face. The central part 25 at the end of each extension 23 is turned upwards and two holes 26 are formed in each extension 23 to receive bolts (not shown) to attach the baseplate 13 to the sleeper 12.
  • the spring clip 14 is a generally flate chevron-shaped plate of spring steel as shown in Figure 2.
  • the clip comprises a pair of toes 31,32 defined by a V-shaped cut-out and a heel 33 in the form of a correspondingly V-shaped protrusion.
  • the ends 34 of the toes 31,32 and heel 33 are upturned.
  • the complementary nature of the V-shapes minimises material wastage in forming the plates.
  • the baseplate 13 is suitably secured to the positioned sleeper 12 and the rail 11 is positioned correctly on the central portion 21 of the baseplate 13.
  • One end of a clip 14 is then introduced through the baseplate slots 24 to rest on the rail flange 15.
  • the rear end of the clip 14 is driven by a hammer or some other means up over the turned-up central part 25 of the baseplate end, and is thus prevented from returning by this central part 25.
  • Tension is produced within the clip 14 between this point, the reaction point at the underside of the inverted U 22 between the two slots and the contact point of the clip 14 with the rail flange 15, this tension ensures the correct toe load is applied on the rail flange 15. This is then repeated with the other clip 14 on the other side of the baseplate 13.
  • a suitably shaped lever is located on end of the clip 14 at the rail foot and against the rail head and pressure is applied to the clip end to drive the clip 14 out.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)
EP85302459A 1984-04-10 1985-04-09 Système de fixation d'un rail de chemin de fer sur une traverse de chemin de fer Withdrawn EP0161786A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB848409237A GB8409237D0 (en) 1984-04-10 1984-04-10 Securing railway sleeper
GB8409237 1984-04-10

Publications (1)

Publication Number Publication Date
EP0161786A1 true EP0161786A1 (fr) 1985-11-21

Family

ID=10559467

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85302459A Withdrawn EP0161786A1 (fr) 1984-04-10 1985-04-09 Système de fixation d'un rail de chemin de fer sur une traverse de chemin de fer

Country Status (2)

Country Link
EP (1) EP0161786A1 (fr)
GB (2) GB8409237D0 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994028245A1 (fr) * 1993-06-02 1994-12-08 Jude Odihachukwunma Igwemezie Traverse, socle et crapaud de rail perfectionnes
US5782406A (en) * 1993-06-02 1998-07-21 Igwemezie; Jude O. Rail tie plate clips and shoulders
US6305613B1 (en) 1995-01-13 2001-10-23 Jude O. Igwemezie Rail fastening devices

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1925717A (en) * 1931-01-10 1933-09-05 Faries Robert Rail retaining member
US2118100A (en) * 1936-11-11 1938-05-24 Henry C Myer Tie plate and rail fastener
US2547839A (en) * 1947-06-05 1951-04-03 United States Steel Corp Rail fastening device
DE2921720A1 (de) * 1978-05-30 1979-12-20 Hixson Richard M Vorrichtung zur befestigung von eisenbahnschienen auf schwellen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1042991A (en) * 1964-03-05 1966-09-21 British Railways Board Improvements relating to rail fastenings
GB1169715A (en) * 1966-08-16 1969-11-05 British Railways Board Improvements relating to Rail Fastenings
FR2466566A1 (fr) * 1979-10-02 1981-04-10 Ressorts Ind Nouveaux dispositifs pour la fixation elastique de rail de chemin de fer par verrouillage
GB2129470B (en) * 1982-11-01 1986-04-16 Alan Walter Briggs Rail sleeper and fastening

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1925717A (en) * 1931-01-10 1933-09-05 Faries Robert Rail retaining member
US2118100A (en) * 1936-11-11 1938-05-24 Henry C Myer Tie plate and rail fastener
US2547839A (en) * 1947-06-05 1951-04-03 United States Steel Corp Rail fastening device
DE2921720A1 (de) * 1978-05-30 1979-12-20 Hixson Richard M Vorrichtung zur befestigung von eisenbahnschienen auf schwellen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994028245A1 (fr) * 1993-06-02 1994-12-08 Jude Odihachukwunma Igwemezie Traverse, socle et crapaud de rail perfectionnes
US5782406A (en) * 1993-06-02 1998-07-21 Igwemezie; Jude O. Rail tie plate clips and shoulders
US6305613B1 (en) 1995-01-13 2001-10-23 Jude O. Igwemezie Rail fastening devices

Also Published As

Publication number Publication date
GB8509082D0 (en) 1985-05-15
GB2157348A (en) 1985-10-23
GB8409237D0 (en) 1984-05-23

Similar Documents

Publication Publication Date Title
US5221044A (en) Rail fastening system with gage adjustment means
DE69422170D1 (de) Verbesserte eisenbahnschwelle
US4981264A (en) Device for fixing stock rails in railway switches as well as process for fixing stock rails by means of such device
EP0161786A1 (fr) Système de fixation d'un rail de chemin de fer sur une traverse de chemin de fer
CA1166216A (fr) Fixation d'un rail de chemin de fer sur son assise
US3658247A (en) Railway sleeper and clip for securing a rail thereto
US4150792A (en) Rail fastener
US4566631A (en) Electrically insulating railway rails from rail-fastening means
US4513912A (en) Holding a railway rail down on a support member
US5820021A (en) Resilient railway fastening clip resisting loosening or removal
US4828172A (en) Tie plate rail fastening system
US4413777A (en) Rail clip and an assembly on a railway track which includes the clip
US4917295A (en) Tie plate rail fastening system
EP0199667A3 (en) Resilient pad for steel y-sleepers
WO2006036088A2 (fr) Attache de rails
US4405081A (en) Rail fastener with gauge adjustment
US20140231533A1 (en) Track assembly
GB2214545A (en) Rail fastening assembly
AU630250B2 (en) Resilient rail retaining clip
US2171819A (en) Rail anchor
RU2254407C1 (ru) Промежуточное рельсовое скрепление
US3883072A (en) Rail anchor
US2462548A (en) Single flange rail anchor
US2324452A (en) Two-way creep check
GB2097453A (en) Fastening rails to a wooden railway sleeper

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

AK Designated contracting states

Designated state(s): DE FR IT

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: 19860722

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MARSHALL, BARRY