CA2029276A1 - Rail pads - Google Patents
Rail padsInfo
- 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
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)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (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).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB898925238A GB8925238D0 (en) | 1989-11-08 | 1989-11-08 | Rail pads |
GB8925238.1 | 1989-11-08 |
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE437173B (en) * | 1976-06-11 | 1985-02-11 | Btr South Africa Ltd | RELSUNDERLEGG |
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 |
-
1989
- 1989-11-08 GB GB898925238A patent/GB8925238D0/en active Pending
-
1990
- 1990-10-12 GB GB9022220A patent/GB2237833B/en not_active Expired - Fee Related
- 1990-11-05 CA CA 2029276 patent/CA2029276C/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB2237833B (en) | 1993-12-01 |
CA2029276C (en) | 1998-12-22 |
GB9022220D0 (en) | 1990-11-28 |
GB2237833A (en) | 1991-05-15 |
GB8925238D0 (en) | 1989-12-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |