GB2077819A - Fastening railway rails - Google Patents
Fastening railway rails Download PDFInfo
- Publication number
- GB2077819A GB2077819A GB8019918A GB8019918A GB2077819A GB 2077819 A GB2077819 A GB 2077819A GB 8019918 A GB8019918 A GB 8019918A GB 8019918 A GB8019918 A GB 8019918A GB 2077819 A GB2077819 A GB 2077819A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rail
- base plate
- anchoring device
- clip
- anchoring
- 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
- E01B9/38—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
- E01B9/483—Fastening the rail on the tie-plate by clamps by resilient steel clips the clip being a shaped bar
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
A sheet metal anchoring device which is suitable for use with a rail clip to hold down a railway rail as in Fig. 9 comprises a first portion 1 extending upwardly and to the right, a second portion 2 extending downwardly and to the right, a third portion 3 extending further to the right, a fourth portion 4 extending downwardly and to the right, a fifth portion 5 extending downwardly and to the left and optionally a sixth portion 6 extending further to the left. The portions 5, 6 may be bifurcated. The opposite extremities of the sequence of portions are welded to a base plate and a part of a clip lies under an arch formed by the first and second portions, another part of the clip bears downwardly on the rail flange and a further part of the clip bears downwardly on the third portion 3. <IMAGE>
Description
SPECIFICATION
Fastening railway rails
According to a first aspect of the invention, there is provided an anchoring device which is suitable for use with a rail clip, which has been made by bending a metal bar, for holding down a railway rail, the anchoring device having been formed by bending a piece of sheet metal so that it has such a shape that in one position of the anchoring device it comprises, progressing from one extremity of said piece to an opposite extremity of it, a first portion extending upwardly and to the right, then a second portion extending downwardly and to the right, then a third portion extending further to the right, then a fourth portion extending downwardly and to the right, then a fifth portion extending downwardly and to the left, the anchoring device being suitable for use in an assembly on a railway track in which a substantially straight leg of the clip is driven under an arch formed by the first and second portions and bears upwardly on the lower side of the arch, another part of the clip bears downwardly on a flange at the bottom of a rail which is substantially parallel to said leg and a third part of the clip bears downwardly on the third portion of the anchoring device.
There may also be a sixth portion of the anchoring device extending further to the left from the left-hand extremity of the fifth portion to said opposite extremity of said piece.
The lower end of the first portion of the anchoring device may be welded to the top of a base plate upon which the rail is to stand, near a location where an edge of the rail flange is to be situated, and the fifth portion of the anchoring device, or the sixth portion if it is provided, may be welded to the top of the base plate, further from the rail, and/or to an edge of the base plate.
According to a second aspect of the invention, there is provided an assembly on a railway track comprising a foundation for a railway rail, a metal base plate lying on the foundation, a railway rail standing on the base plate, an anchoring device according to the first aspect of the invention welded to the base plate as indicated above and a clip engaging the rail and the anchoring device as indicated above.
According to a third aspect of the invention, there is provided an assembly on a railway track comprising a foundation for a railway rail, a metal base plate lying on the foundation, a railway rail standing on the base plate, nearer one end of the base plate than it is to the other end of the base plate, a first anchoring device according to the first aspect of the invention at said one end of the base plate with said opposite extremity thereof welded to the end edge of the base plate, a second anchoring device according to the first aspect of the invention at said other end of the base plate with material thereof near said opposite extremity thereof welded to the top of the base plate, the lower ends of the first portions of the anchoring devices also being welded to the top of the base plate near the edges of the rail flange, and two rail-fastening clips each having a substantially straight leg which is substantially parallel to the rail and is driven under an arch formed by the first and second portions of one of the anchoring devices and bears upwardly on the lower side of the arch, another part of each clip bearing downwardly on the top of the rail flange and a third part of each clip bearing downwardly on the third portion of one of the anchoring devices.
Examples in accordance with the invention are described below with reference to the accompanying drawings, in which:
Figure 1 shows a side of an anchoring device,
Figure 2 shows an underneath view of the device,
Figure 3 shows a top plan view of the device;
Figure 4 shows an end view of the device,
Figures 5 to 8 show, in each case by means of a view corresponding to part of that shown by
Figure 1, four possible modifications of the anchoring device according to Figures 1 to 4, and
Figure 9 shows an assembly on a railway track.
Figures 1 to 4 show an anchoring device made by bending a piece of sheet steel so that it has such a shape that in the position shown in Figure 1 it comprises, progressing from one extremity A to an opposite extremity B, a first portion 1 extending upwardly and to the right, a second portion 2 extending downwardly and to the right, a third portion 3 extending substantially horizontally and further to the right, a fourth portion 4 extending downwardly and to the right, then a fifth portion 5 extending downwardly and to the left and finally a sixth portion 6 extending substantially horizontally and further to the left.
These portions meet at about the locations indicated by the lines 1-2, 2-3, 3-4,4-5, and 5-6 in Figure 1. Considering Figure 1, behind the portions 5 and 6 there are similar portions 5A and 6A because the flat piece of sheet steel from which the anchoring device was made had a rectangular cut-out, centrally in one end, leaving, on opposite sides of the cut-out, parts which were formed into the portions 5, 6; 5A and 6A. The presence of the cut-out is thought to make it easier to weld the anchoring device to a base plate but it is possible to make the anchoring device from a flat rectangular blank with no cutout.
Figure 1 shows that the part of the portion 1 nearer the extremity A is substantially vertical.
This is desirable if the anchoring device is to locate the rail; if not, this part of the portion 1 may be inclined to the vertical, as shown in Figure 5.
The lower end of the portion 1 of Figures 1 to 4 could be oblique, as shown in Figure 6, and the lower end of the modification shown in Figure 5 could likewise be oblique.
Figure 7 shows that there need be no substantially horizontal portion corresponding to the portions 6 and 6A of Figures 1 to 4 and Figure 8 shows that there could be a substantially horizontal portion 6 much shorter than that which is shown in Figures 1 to 4.
Figure 9 shows a wooden railway sleeper 7 on which a rolled steel base plate 8 lies. On this plate stands a rail having a flange 9 and a web 10. The distance between the edge 9A of the flange and the end 8A of the base plate is less than the distance between the edge 9B of the flange and the end 8B of the base plate. The edge 9B of the flange is located by an upwardly-projecting rib 11 which extends across the entire width of the base plate. There is no such rib to iocate the edge 9A of the flange.
The rail was originally held down on the sleeper by spikes passing through vertical holes (not shown) in the base plate and driven into holes in the sleeper, the heads of the spikes overlying the flange of the rail and being in contact with its upper surface on both sides of the flange. These spikes have been withdrawn and not replaced and other spikes, nearer the ends of the base plate, for holding the base plate down on the sleeper, or some of such spikes, have been left in position or replaced by screw spikes.
An anchoring device according to Figures 1 to 4, but with the modification according to Figure 8, has the lower end of its portion 1 welded to the top of the base plate and its portions 6 and 6A welded to the edge of the base plate 8 at the end 8A of the plate. Another anchoring device according to Figures 1 to 4, but with the modification according to Figure 6, has the lower end of its portion 1 welded to the inclined flank 1 A of the rib 11 on the top of the base plate and its portions 6 and 6A welded to the top of the base plate, further from the rail.
Two identical rail clips according to Patent No.
861,473 have their substantially straight legs 12 substantially parallel to the rail and driven, in opposite directions, under the arches formed by the portions 1 and 2 of the anchoring devices and bearing upwardly on the lower sides of the arches.
Further parts 13 of the clips bear downwardly on the flange of the rail and parts 14 of the clips bear downwardly on the portions 3 of the anchoring devices.
Because the base plate is not symmetrical about a vertical piane perpendicular to the plane of the paper, considering Figure 9, and passing through the centre of the web of the rail, it is not convenient to use two identical anchoring devices, one on each side of the rail, because that would necessitate using two clips, one on each side of the rail, which are not in fact identical although they would look sufficiently alike to confuse the workmen.
The anchoring devices may be welded to the base plate without removing the base plate from the sleeper and possibly, in some cases, without removing the rail from the base plate.
Claims (1)
1. An anchoring device which is suitable for use with a rail clip, which has been made by bending a metal bar, for holding down a railway rail, the anchoring device having been formed by bending a piece of sheet metal so that it has such a shape that in one position of the anchoring device it comprises, progressing from one extremity of said piece to an opposite extemity of it, a first portion extending upwardly and to the right, then a second portion extending downwardly and to the right, then a third portion extending further to the right, then a fourth portion extending downwardly and to the right, then a fifth portion extending downwardly and to the left, the anchoring device being suitable for use in an assembly on a railway track in which a substantially straight leg of the clip is driven under an arch formed by the first and second portions and bears upwardly on the lower side of the arch, another part of the clip bears downwardly on a flange at the bottom of a rail which is substantially parallel to said leg and a third part of the clip bears downwardly on the third portion of the anchoring device.
2. A device according to claim 1 having a sixth portion extending further to the left from the lefthand extremity of the fifth portion to said opposite extremity of said piece, when the device is in said position.
3. A device according to claim 1 or 2 in which the region ot the tirst portion nearest said one extremity is substantially vertical and the third portion substantially horizontal when the device is in said position.
4. A device according to claim 1 or 2 in which the region of the first portion nearest said one extremity is inclined by a substantial angle to the vertical and the third portion is substantially horizontal when the device is in said position.
5. A device according to any preceding claim in which the first portion has an oblique end remote from the second portion.
6. A device according to any preceding claim which is bifurcated at said opposite extremity so that the fifth portion is in two separate parts and the sixth portion, if it is provided, is also in two separate parts.
7. An anchoring device which is suitable for use with a rail clip for holding down a railway rail, the device being substantially as described above with reference to Figures 1 to 4 of the accompanying drawings or with the modification shown in Figure
5 or Figure 6 and/or the modification shown in
Figure 7 or Figure 8.
8. An assembly on a railway track comprising a foundation for a railway rail, a metal base plate
lying on the foundation, a railway rail standing on the base plate, an anchoring device according to
any preceding claim with said one extremity thereof welded to the top of the base plate near the edge of the rail flange and the fifth portion thereof, or the sixth portion if it is provided, welded to the top of the base plate further from the rail and/or to an edge of the base plate, and a clip engaging the rail and the anchoring device as
indicated in claim 1.
9. An assembly according to claim 8 in which the anchoring device is in accordance with any
one of claims 2 to 7.
10. An assembly according to claim 8 or 9 having a further anchoring device according to any one of claims 1 to 7 and a further clip, the two anchoring devices being dissimilar and being on opposite sides of the rail and the two clips being substantially identical and holding down opposite sides of the rail.
1 An assembly according to claim 10 in which one anchoring device is welded to a rib on the base plate, near the rail, and to the top of the base plate and the other anchoring device is welded to the top of the base plate, near the rail, and to an end edge of the base plate.
1 2. An assembly on a railway track comprising a foundation for a railway rail, a metal base plate.
lying on the foundation, a railway rail standing on the base plate, nearer one end of the base plate than it is to the other end of the base plate, a first anchoring device according to any one of claims 1 to 7 at said one end of the base plate with said opposite extremity thereof welded to the end edge of the base plate, a second anchoring device according to any one of claims 1 to 7 at said other end of the base plate with material thereof near said opposite extremity thereof welded to the top of the base plate, the lower ends of the first portions of the anchoring devices also being welded to the top of the base plate near the edges of the rail flange, and two rail-fastening clips each having a substantially straight leg which is substantially parallel to the rail and is driven under an arch formed by the first and second portions of one of the anchoring devices and bears upwardly on the lower side of the arch, another part of each clip bearing downwardly on the top of the rail flange and a third part of each clip bearing downwardly on the third portion of one of the anchoring devices.
13. An assembly on a railway track substantially as described above with reference to
Figure 9 of the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8019918A GB2077819B (en) | 1980-06-18 | 1980-06-18 | Fastening railway rails |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8019918A GB2077819B (en) | 1980-06-18 | 1980-06-18 | Fastening railway rails |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2077819A true GB2077819A (en) | 1981-12-23 |
| GB2077819B GB2077819B (en) | 1984-07-11 |
Family
ID=10514128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8019918A Expired GB2077819B (en) | 1980-06-18 | 1980-06-18 | Fastening railway rails |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2077819B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3346054B1 (en) | 2017-01-10 | 2021-12-01 | Schwihag Ag | Tension clamp and rail fastening system for fastening railway rails |
-
1980
- 1980-06-18 GB GB8019918A patent/GB2077819B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3346054B1 (en) | 2017-01-10 | 2021-12-01 | Schwihag Ag | Tension clamp and rail fastening system for fastening railway rails |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2077819B (en) | 1984-07-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |