CA2029276A1 - Rail pads - Google Patents

Rail pads

Info

Publication number
CA2029276A1
CA2029276A1 CA 2029276 CA2029276A CA2029276A1 CA 2029276 A1 CA2029276 A1 CA 2029276A1 CA 2029276 CA2029276 CA 2029276 CA 2029276 A CA2029276 A CA 2029276A CA 2029276 A1 CA2029276 A1 CA 2029276A1
Authority
CA
Canada
Prior art keywords
rail
supporting portion
pad
peripheral region
foundation
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.)
Granted
Application number
CA 2029276
Other languages
French (fr)
Other versions
CA2029276C (en
Inventor
Trevor Paul Brown
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
Individual
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 Individual filed Critical Individual
Publication of CA2029276A1 publication Critical patent/CA2029276A1/en
Application granted granted Critical
Publication of CA2029276C publication Critical patent/CA2029276C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
    • E01B9/685—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by their shape
    • E01B9/686—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by their shape with textured surface
    • 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
    • E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
    • E01B9/685—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by their shape
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/387—Compensation of inhomogeneities
    • G01R33/3875—Compensation of inhomogeneities using correction coil assemblies, e.g. active shimming
    • 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
    • E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
    • E01B9/681—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by the material
    • E01B9/683—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by the material layered or composite

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Railway Tracks (AREA)
  • Gasket Seals (AREA)

Abstract

A pad, suitable for spacing the bottom of a railway rail from a rail foundation on which the rail stands, comprises a plate-like rail-supporting portion (1) and softer, resiliently-deformable, sealing means (3), which sealing means (3) are bonded to the rail-supporting portion (1) at a peripheral region thereof and are such that, when the pad is placed on a rail foundation and a rail is placed on the rail-supporting portion (1) of the pad, those means (3) deform under the weight of the rail so as to form a substantially watertight seal around the said peripheral region of the rail-supporting portion (1).
CA 2029276 1989-11-08 1990-11-05 Rail pads Expired - Lifetime CA2029276C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8925238.1 1989-11-08
GB898925238A GB8925238D0 (en) 1989-11-08 1989-11-08 Rail pads

Publications (2)

Publication Number Publication Date
CA2029276A1 true CA2029276A1 (en) 1991-05-09
CA2029276C CA2029276C (en) 1998-12-22

Family

ID=10665942

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2029276 Expired - Lifetime CA2029276C (en) 1989-11-08 1990-11-05 Rail pads

Country Status (2)

Country Link
CA (1) CA2029276C (en)
GB (2) GB8925238D0 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT404850B (en) * 1993-02-18 1999-03-25 Porr Allg Bauges Permanent way with rails and intermediate plates
US5549245A (en) * 1994-11-02 1996-08-27 Illinois Tool Works Inc. Composite pad useful between railroad rail and railroad tie
US5551633A (en) * 1994-11-02 1996-09-03 Illinois Tool Works, Inc. Elastomeric pad between railroad rail and railroad tie
US5551632A (en) * 1994-11-02 1996-09-03 Illinois Tool Works Inc. Elastomeric pad between railroad rail and railroad tie
EP0710743A1 (en) * 1994-11-02 1996-05-08 Illinois Tool Works Inc. Railroad track, railroad tie and pad for it
US6045052A (en) * 1998-04-02 2000-04-04 Airboss Of America Corp. Rail tie fastening assembly
GB2554648A (en) * 2016-09-30 2018-04-11 Pandrol Ltd A pad for a railway rail fastening assembly

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1071168A (en) * 1976-06-11 1980-02-05 Lesteel Spring Company (Proprietary) Limited Support and/or locating means for rails in rail tracks
GB2051187B (en) * 1979-06-13 1983-05-18 Tokai Rubber Ind Ltd Composite rail pad
GB2114635A (en) * 1982-02-09 1983-08-24 Harefield Rubber Company Limit Resilient seats for railway rails
GB2121461B (en) * 1982-06-10 1985-09-04 Pandrol Ltd A pad for positioning under a railway rail and an assembly including the pad
DE3720381A1 (en) * 1987-06-19 1989-01-05 Vossloh Werke Gmbh DEVICE FOR FASTENING RAILWAY RAILS ON FIXED ROADWAY

Also Published As

Publication number Publication date
CA2029276C (en) 1998-12-22
GB2237833A (en) 1991-05-15
GB2237833B (en) 1993-12-01
GB9022220D0 (en) 1990-11-28
GB8925238D0 (en) 1989-12-28

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry