CA1048466A - Clip suitable for use as a crane rail clip - Google Patents
Clip suitable for use as a crane rail clipInfo
- Publication number
- CA1048466A CA1048466A CA74191848A CA191848A CA1048466A CA 1048466 A CA1048466 A CA 1048466A CA 74191848 A CA74191848 A CA 74191848A CA 191848 A CA191848 A CA 191848A CA 1048466 A CA1048466 A CA 1048466A
- Authority
- CA
- Canada
- Prior art keywords
- clip
- clamping
- base plate
- end portions
- arcuate portions
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C7/00—Runways, tracks or trackways for trolleys or cranes
- B66C7/08—Constructional features of runway rails or rail mountings
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/03—Cranes with arms or jibs; Multiple cranes
- B66C2700/0321—Travelling cranes
- B66C2700/0328—Cranes on rails or on rail vehicles
- B66C2700/035—Construction details related to the travelling, to the supporting of the crane or to the blocking of the axles; Outriggers; Coupling of the travelling mechanism to the crane mechanism
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Leg Units, Guards, And Driving Tracks Of Cranes (AREA)
- Clamps And Clips (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
Abstract
ABSTRACT
A crane rail clip of bar spring steel has first arcuate portions extending upwardly from a central portion and diverging outwardly with respect to one another, second arcuate portions contiguous to the first arcuate portions and extending downwardly, the second arcuate portions converging inwardly towards, or diverging outwardly away from, one another, and end portions contiguous to the second arcuate portions. The end portions extend generally towards, and are disposed on the same side of, a plane passing through the central portion but not through either end portion, and the first arcuate portions extending from the central portion on the same side of the plane.
A crane rail clip of bar spring steel has first arcuate portions extending upwardly from a central portion and diverging outwardly with respect to one another, second arcuate portions contiguous to the first arcuate portions and extending downwardly, the second arcuate portions converging inwardly towards, or diverging outwardly away from, one another, and end portions contiguous to the second arcuate portions. The end portions extend generally towards, and are disposed on the same side of, a plane passing through the central portion but not through either end portion, and the first arcuate portions extending from the central portion on the same side of the plane.
Description
~I~LD OF Tll~ INVENTION
This invention relates to Q Clip~ suitable for use as a crane rail clip, and to a device comprising such a clip.
Crane rails are welded into a continuous length in order to eliminate high impact forces when a wheel passes over an ordinary butt joint. The crane rails behave as cont-inuous beams and any deflection of a crane girder which supports the rails will cause differential longitudinal move-ment of the rail. Forces transmitted to the rails as a result of acceleration and deceleration of the crane wheels over the rails will also give rise to longitudinal movement of the rails.
- Surge forces giving rise to lateral movement of the rails are c~used by cross travel of the crane crab andload~.or steering forces applied to the side of the head of the rail by the flanges of the wheels or by steering rollers.
PRIO~ ART
One known type of crane rail fixing device comprises a clip..in the form of an integral piece of sheet s~l having a base portion adapted to be bolted on to the upper surface of the girder or other support, and a spring tongue portion which extends from the side of the base portion remote from the rail and curves back over the base portion and then down-wardly so thàt its extremity is adapted to engage the flange of the rail. This device is expensive and may not permit longitudinal structural and expansion movements of the rail . Another known device comprises a clip made of a sheet of spring steel The clip has a substantially planar portion provided with an aperture for receiving w~th clearance a stud which is welded to a girder on which a rail is to be mounted.
The clip has a curved end portion the extremlty of which is intended to engage a flange of a rail.
1~48466 In order to clamp a rail on a girder, a base plate through which the stud passes is urged against the toe of the rail by means of a cam enabling variable adjustability of the position of the base plate on the girder. A nut is then screwed onto the stud so that the substantially planar portion of the clip is clamped onto the base plate and so that the extremity of the curved end portion exerts pressure on the flange of the rail. This device has the disadvantages that the clip may work loose and the extremity of the curved end portion of the clip has a tendency to dig into the flange of the rail thereby preventing longitudinal structural and expansion movements of the rail.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a clip, suitable for fixing a rail on a girder, which is capable of being used so that problems of longi~udinal and lateral movement referred to above can be overcome or at least mitigated in relatively inexpensive manner.
It is another object of the invention to provide a device comprising such a clip, the device being adjustable so that misalignment of the rail can be corrected.
According to one aspect of the present invention there is provided a clip suitable for use as a crane rail clip, of bar spring steel, which comprises a continuous member having two end portions, by which the clip is, in use to be retained on a first member, and a central portion, by which a force is, in use, to be applied to a second member, the end portions both being on the same side of a plane through the centre of the central portion not passing through either end portion and ~he end portions both being directed towards the said plane through the centre of the central ~ 2 `` 1~J148466 portion. The bar spring steel member has first arcuate portions extending upwardly from the central portion and diverging outwardly with respect to one another, and second arcuate portions contiguous to the first arcuate portions converging inwardly towards, or diverging outwardly from, one another. The end portions are contiguous to the second arcuate portions.
~ 2a 1~4~466 According to another aspect of the present invention there is provided a devlce for fixing an elongate member on a support member~ which device comprises a clip according to the preceding paragraph~ a base plate defining an aperture for receiving a stud which is~ in use of the device, connected to the support member~ a clamping plate defining an aperture for receiving the stud~ and means clamping the end portions of the clip between the clamping plate and the base plate.
Conveniently~ the or each base plate is in the form of a polygon and the aperture is eccentr~cally disposed in the or each base plate. Desirably~ the clamping means comprises a nut which can be screwed down on the stud which is, in use, secured to the support member~ and a conical disc spring which is disposed between the nut and the clamping plate.
Such a device~ when used to fix a rail on a girder~
permits movement of the rail in the longitudinal direction so that structural and expansion movements of the rail are perm-itted. However~ the clip offers substantially no resistance to surge forces exerted laterally of the rail~ these forces being resisted by the base plate which can~ if necessary, be welded to the girder after final alignment of the rail.
For a better understanding of the present invention, and to show how the same may be carried into effect reference will now be made~by way of example~ to the accompanying draw-ings in which:-BRIEF DES~RIPTION OF DRAWINGS
Figure 1 shows a plan view:of part of a device~ in accordance with the present invention, being used to clamp a rail on a girder~
Figure 2 shows a side elevational view of the device of Figure 1, 3 Figure ~ shows a rear elevational view of the device of Figure 1~
~48466 Figure 4 shows a plan view of part of another device, in accordance with the present invention, being used to clamp a rail on a girder, and Figure 5 shows a rear elevational view of the device of Figure 4.
DESCRIPTION OF PREFERRED EMBODIMENTS
Referring now to Figures 1 to 3 of the drawings, the device comprises a clip 1 of bar spring steel, such as 15 mm diameter EN 29 spring steel. The;Clip 1 compr~ses arcuate portions 2 which diverge outwardly from a central portion 3 of the bar. The central portion 3 is adapted to engage the flange of a rail 4 (herein sometimes referred to as the second member), and urge the same against a girder 5 (herein sometimes referred to as the first or support member). The arcuate portions 2 extend upwardly from the central portion 3 and are continued by other arcuate portions 6 which converge inwardly towards one another, extend downwardly and are continued by end portions 7 of the clip. The end portions of the clip 1 extend towards the central portion 3 of the bar and preferably, the end portions 7 converge towards one another.
The end portions 7 of the clip 1 rest on a square, steel base plate 8 having a circular aperture 9 for receiving a stud 10 which is welded to the girder 5. The aperture 9 has a portion of increased diameter for receiving weld metal which welds the stud 10 to the girder 5. ~he aperture 9 is preferably eccentrically disposed in the base plate 8.
A steel clamping plate 12 which is a hardened circular washer is disposed above the clip 1 in contact therewith.
The device further comprises a nut 13 which can be screwed onto the stud 10, above the clamping plate 12, in order to clamp the clip 1 between the clamping plate 12 and the base plate 8. A conical disc spring 14 is disposed between the nut and the clamping plate. The conical disc spring 14 has predetermined load deflection characteristics so that, when 1~48466 ~he spring is collapsed on tightening the nut 13~ a pre-determined stress is exerted on the clamping plate 12 and ~3 the nut 13 is retained abs~lutely tight.
In order to prevent the clip 1 from turning on the base plate 8~ the base plate is preferably provided with gro-oves (not shown) for receiving the end portions 7 of the clip 1 Several pairs of grooves may be provided in accordance with the fixed adjustability of the position of the base plate 8 as will be described hereafter. Alternatively~ the under-sides of the end portions of the clip 1 may be serrated in order to prevent the clip from turning.
In use of the device in accordance with the present invention for fixing a rail 4 on a girder 5, the central por-tion 3 of the bar of the clip is arranged to overlie the base flange of the rail which is disposed on the girder. The end portions 7 of the clip 1 lie on the base plate 8 and the stud 10 which is welded to the girder 5 extends through the aperture 9 in the base plate 8 which may be welded to the girder 5 after final alig~nent of the rail 4. The base plate 8 is dis-posed with one edge adjacent the base flange-of the rail 4. If the aperture is eccentrically disposed in the base plate, mis-alignment of the rail 4 can be corrected by selecting an appropriate edge of the base plate 8 to lie adjacent the rail.
In this way, rails on existing supports which are out of line
This invention relates to Q Clip~ suitable for use as a crane rail clip, and to a device comprising such a clip.
Crane rails are welded into a continuous length in order to eliminate high impact forces when a wheel passes over an ordinary butt joint. The crane rails behave as cont-inuous beams and any deflection of a crane girder which supports the rails will cause differential longitudinal move-ment of the rail. Forces transmitted to the rails as a result of acceleration and deceleration of the crane wheels over the rails will also give rise to longitudinal movement of the rails.
- Surge forces giving rise to lateral movement of the rails are c~used by cross travel of the crane crab andload~.or steering forces applied to the side of the head of the rail by the flanges of the wheels or by steering rollers.
PRIO~ ART
One known type of crane rail fixing device comprises a clip..in the form of an integral piece of sheet s~l having a base portion adapted to be bolted on to the upper surface of the girder or other support, and a spring tongue portion which extends from the side of the base portion remote from the rail and curves back over the base portion and then down-wardly so thàt its extremity is adapted to engage the flange of the rail. This device is expensive and may not permit longitudinal structural and expansion movements of the rail . Another known device comprises a clip made of a sheet of spring steel The clip has a substantially planar portion provided with an aperture for receiving w~th clearance a stud which is welded to a girder on which a rail is to be mounted.
The clip has a curved end portion the extremlty of which is intended to engage a flange of a rail.
1~48466 In order to clamp a rail on a girder, a base plate through which the stud passes is urged against the toe of the rail by means of a cam enabling variable adjustability of the position of the base plate on the girder. A nut is then screwed onto the stud so that the substantially planar portion of the clip is clamped onto the base plate and so that the extremity of the curved end portion exerts pressure on the flange of the rail. This device has the disadvantages that the clip may work loose and the extremity of the curved end portion of the clip has a tendency to dig into the flange of the rail thereby preventing longitudinal structural and expansion movements of the rail.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a clip, suitable for fixing a rail on a girder, which is capable of being used so that problems of longi~udinal and lateral movement referred to above can be overcome or at least mitigated in relatively inexpensive manner.
It is another object of the invention to provide a device comprising such a clip, the device being adjustable so that misalignment of the rail can be corrected.
According to one aspect of the present invention there is provided a clip suitable for use as a crane rail clip, of bar spring steel, which comprises a continuous member having two end portions, by which the clip is, in use to be retained on a first member, and a central portion, by which a force is, in use, to be applied to a second member, the end portions both being on the same side of a plane through the centre of the central portion not passing through either end portion and ~he end portions both being directed towards the said plane through the centre of the central ~ 2 `` 1~J148466 portion. The bar spring steel member has first arcuate portions extending upwardly from the central portion and diverging outwardly with respect to one another, and second arcuate portions contiguous to the first arcuate portions converging inwardly towards, or diverging outwardly from, one another. The end portions are contiguous to the second arcuate portions.
~ 2a 1~4~466 According to another aspect of the present invention there is provided a devlce for fixing an elongate member on a support member~ which device comprises a clip according to the preceding paragraph~ a base plate defining an aperture for receiving a stud which is~ in use of the device, connected to the support member~ a clamping plate defining an aperture for receiving the stud~ and means clamping the end portions of the clip between the clamping plate and the base plate.
Conveniently~ the or each base plate is in the form of a polygon and the aperture is eccentr~cally disposed in the or each base plate. Desirably~ the clamping means comprises a nut which can be screwed down on the stud which is, in use, secured to the support member~ and a conical disc spring which is disposed between the nut and the clamping plate.
Such a device~ when used to fix a rail on a girder~
permits movement of the rail in the longitudinal direction so that structural and expansion movements of the rail are perm-itted. However~ the clip offers substantially no resistance to surge forces exerted laterally of the rail~ these forces being resisted by the base plate which can~ if necessary, be welded to the girder after final alignment of the rail.
For a better understanding of the present invention, and to show how the same may be carried into effect reference will now be made~by way of example~ to the accompanying draw-ings in which:-BRIEF DES~RIPTION OF DRAWINGS
Figure 1 shows a plan view:of part of a device~ in accordance with the present invention, being used to clamp a rail on a girder~
Figure 2 shows a side elevational view of the device of Figure 1, 3 Figure ~ shows a rear elevational view of the device of Figure 1~
~48466 Figure 4 shows a plan view of part of another device, in accordance with the present invention, being used to clamp a rail on a girder, and Figure 5 shows a rear elevational view of the device of Figure 4.
DESCRIPTION OF PREFERRED EMBODIMENTS
Referring now to Figures 1 to 3 of the drawings, the device comprises a clip 1 of bar spring steel, such as 15 mm diameter EN 29 spring steel. The;Clip 1 compr~ses arcuate portions 2 which diverge outwardly from a central portion 3 of the bar. The central portion 3 is adapted to engage the flange of a rail 4 (herein sometimes referred to as the second member), and urge the same against a girder 5 (herein sometimes referred to as the first or support member). The arcuate portions 2 extend upwardly from the central portion 3 and are continued by other arcuate portions 6 which converge inwardly towards one another, extend downwardly and are continued by end portions 7 of the clip. The end portions of the clip 1 extend towards the central portion 3 of the bar and preferably, the end portions 7 converge towards one another.
The end portions 7 of the clip 1 rest on a square, steel base plate 8 having a circular aperture 9 for receiving a stud 10 which is welded to the girder 5. The aperture 9 has a portion of increased diameter for receiving weld metal which welds the stud 10 to the girder 5. ~he aperture 9 is preferably eccentrically disposed in the base plate 8.
A steel clamping plate 12 which is a hardened circular washer is disposed above the clip 1 in contact therewith.
The device further comprises a nut 13 which can be screwed onto the stud 10, above the clamping plate 12, in order to clamp the clip 1 between the clamping plate 12 and the base plate 8. A conical disc spring 14 is disposed between the nut and the clamping plate. The conical disc spring 14 has predetermined load deflection characteristics so that, when 1~48466 ~he spring is collapsed on tightening the nut 13~ a pre-determined stress is exerted on the clamping plate 12 and ~3 the nut 13 is retained abs~lutely tight.
In order to prevent the clip 1 from turning on the base plate 8~ the base plate is preferably provided with gro-oves (not shown) for receiving the end portions 7 of the clip 1 Several pairs of grooves may be provided in accordance with the fixed adjustability of the position of the base plate 8 as will be described hereafter. Alternatively~ the under-sides of the end portions of the clip 1 may be serrated in order to prevent the clip from turning.
In use of the device in accordance with the present invention for fixing a rail 4 on a girder 5, the central por-tion 3 of the bar of the clip is arranged to overlie the base flange of the rail which is disposed on the girder. The end portions 7 of the clip 1 lie on the base plate 8 and the stud 10 which is welded to the girder 5 extends through the aperture 9 in the base plate 8 which may be welded to the girder 5 after final alig~nent of the rail 4. The base plate 8 is dis-posed with one edge adjacent the base flange-of the rail 4. If the aperture is eccentrically disposed in the base plate, mis-alignment of the rail 4 can be corrected by selecting an appropriate edge of the base plate 8 to lie adjacent the rail.
In this way, rails on existing supports which are out of line
2~ due to settlement can be realigned. Rails of a large ship building crane~ for example~ could be up to 100 metres apart~
with a required tolerance of ~ 2 mm and thus it will be appre-ciated that some adjustment of the rails may be necessary.
By varying the dimensions of the base plate S, or by increas-ing the number of sides thereof~ various degrees of misali~l-ment of the rails can be corrected. The dimensions of the Z 1~:)4~466 base plate are preferably such that a minimum variation of 6 mm in the alignment of a rail can be achieved by rotatlng the base plate such that different sides thereof lie adjacent the base flange of the rail.
The nut 13 is then tightened on *he stud 10 thereby to collapse the disc spring 14 and clamp the clip 1 between the clamping plate 12 and the base plate 8. As the nut 13 is tightened~ the olip 1 is deflected and the central portion 3 ~ of the bar of the clip exerts a load on the base flange of ¦ 10 the rail l~. As an example~ if the clip is made of a bar of 15 mm diameter EN 29 spring steel~ the length of the central - portion 3 of the bar in contact with the base flange of the Y rail may be 25 mm and the toe load exerted~ on the base flange may be three-quarters of a ton.
Referring now-to Figures 4 and 5 of the drawings~ the device shown is exerting a larger toe load of~ for example~
one and a half tons on the base flange of a r~il. The device comprises a clip 15 of bar spring steel having a diameter greater than 15 mm. The clip 15 comprises arcuate portions 16 which diverge outwardly from a central portion 17 of the bar.
The central portion 17 is adapted to engage the rail 18 and urges the same against the support 19. The arcuate portions 16 extend upwardly from the central portion 17 and are contin-ued by arcuate portions 20 which diverge outwardly relative to one another~ extend downwardly and are continued by end portinns 21 of the clip which extend towards the rail 18. The device comprises two base plates 22 and two clamping plates 23 for cla~ping respective end portions 21 of the clip. Each base plate 22 and clamping plate 23 has an aperture 24, 25, respect-vely, for receiving a respective stud 26 which is weld-ed to the support 19.
It will be appreciated that instead of receiving a stud which is welded to a support, a clamping plate and a base plate of a device in accordance with the present invent-ion may be adapted to receive a bolt which is fixed to the support.
Rails which are fixed on a girder by means of a device in accordance with the present invention are preferably "soft mounted" by means of a resilient pad, for example rubber dis-posed between the rails and the support.
with a required tolerance of ~ 2 mm and thus it will be appre-ciated that some adjustment of the rails may be necessary.
By varying the dimensions of the base plate S, or by increas-ing the number of sides thereof~ various degrees of misali~l-ment of the rails can be corrected. The dimensions of the Z 1~:)4~466 base plate are preferably such that a minimum variation of 6 mm in the alignment of a rail can be achieved by rotatlng the base plate such that different sides thereof lie adjacent the base flange of the rail.
The nut 13 is then tightened on *he stud 10 thereby to collapse the disc spring 14 and clamp the clip 1 between the clamping plate 12 and the base plate 8. As the nut 13 is tightened~ the olip 1 is deflected and the central portion 3 ~ of the bar of the clip exerts a load on the base flange of ¦ 10 the rail l~. As an example~ if the clip is made of a bar of 15 mm diameter EN 29 spring steel~ the length of the central - portion 3 of the bar in contact with the base flange of the Y rail may be 25 mm and the toe load exerted~ on the base flange may be three-quarters of a ton.
Referring now-to Figures 4 and 5 of the drawings~ the device shown is exerting a larger toe load of~ for example~
one and a half tons on the base flange of a r~il. The device comprises a clip 15 of bar spring steel having a diameter greater than 15 mm. The clip 15 comprises arcuate portions 16 which diverge outwardly from a central portion 17 of the bar.
The central portion 17 is adapted to engage the rail 18 and urges the same against the support 19. The arcuate portions 16 extend upwardly from the central portion 17 and are contin-ued by arcuate portions 20 which diverge outwardly relative to one another~ extend downwardly and are continued by end portinns 21 of the clip which extend towards the rail 18. The device comprises two base plates 22 and two clamping plates 23 for cla~ping respective end portions 21 of the clip. Each base plate 22 and clamping plate 23 has an aperture 24, 25, respect-vely, for receiving a respective stud 26 which is weld-ed to the support 19.
It will be appreciated that instead of receiving a stud which is welded to a support, a clamping plate and a base plate of a device in accordance with the present invent-ion may be adapted to receive a bolt which is fixed to the support.
Rails which are fixed on a girder by means of a device in accordance with the present invention are preferably "soft mounted" by means of a resilient pad, for example rubber dis-posed between the rails and the support.
Claims (7)
OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A crane rail clip which comprises a continuous member of bar spring steel having two end portions by which the clip is, in use, to be retained on a first member, and a central portion by which force is, in use, to be applied to a second member, the bar spring steel member having first arcuate portions extending upwardly and outwardly from the central portion and diverging out-wardly with respect to one another, second arcuate portions con-tiguous to the first arcuate portions, the second arcuate portions extending downwardly and generally in the longitudinal direction of a crane rail and in opposite longitudinal directions to one another, and the end portions being contiguous to the second arcuate portions, the end portions extending generally towards, and being disposed on the same side of, the second member and the out-wardly diverging first arcuate portions extending from the central portion on the same side of the second member, and adjustable clamping means adapted to press the end portions of the clip downwardly.
2. A device for fixing a second member on a support member, which device comprises a clip according to Claim 1, wherein the second arcuate portions extend downwardly and converge inwardly towards one another, and wherein the clamping means comprise a base plate defining an aperture for receiving a stud which is, in use of the device, connected to the support member, a clamping plate defining an aperture for receiving the stud, and means clamping the end portions of the clip between the clamping plate and the base plate.
3. A device according to Claim 2, wherein the base plate is a polygon and the aperture is eccentrically disposed in the base plate.
4. A device according to Claim 2 wherein the base plate is provided with a plurality of pairs of grooves, each pair being adapted to receive the end portions of the clip.
5. A device according to Claim 2, wherein the clamping means comprises a nut which can be screwed down on the stud which is, in use, secured to the support member, and a conical disc spring which is disposed between the nut and the clamping plate.
6. A device for fixing a second member on a support member, which device comprises a clip according to Claim 1, wherein the second arcuate portions extend downwardly and diverge outwardly away from one another, and wherein the clamping means comprise two base plates each defining an aperture, two studs each of which is, in use of the device, received in a respective aperture, two clamping plates each defining an aperture which receives a respective stud, and means clamping the end portions of the clip between a respective clamping plate and base plate.
7. A crane rail clip as claimed in Claim 1, in combination with a first member constituting a support member, and a second member constituting a crane rail, and wherein the clamping means comprise base plate means apertured for receiving stud means connected to the support member, clamping plate means apertured for receiving the stud means, and means for clamping the end portions of the clip between the clamping plate means and the base plate means by cooperation with the stud means.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2421173A GB1475989A (en) | 1973-05-21 | 1973-05-21 | Clip devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1048466A true CA1048466A (en) | 1979-02-13 |
Family
ID=10208139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA74191848A Expired CA1048466A (en) | 1973-05-21 | 1974-02-04 | Clip suitable for use as a crane rail clip |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3876141A (en) |
| AU (1) | AU6914074A (en) |
| BE (1) | BE815303A (en) |
| BR (1) | BR7404103D0 (en) |
| CA (1) | CA1048466A (en) |
| DE (1) | DE2423304A1 (en) |
| FR (1) | FR2230798B1 (en) |
| GB (1) | GB1475989A (en) |
| LU (1) | LU70121A1 (en) |
| NL (1) | NL7406750A (en) |
| NO (1) | NO141809C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3111876A1 (en) * | 1980-04-03 | 1982-06-09 | Ernst Schmitthelm, Federn- Und Metallwarenfabrik Gmbh & Co Kg, 6900 Heidelberg | Resilient rail fastening on concrete sleepers |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4067495A (en) * | 1975-08-28 | 1978-01-10 | Portec Inc., Railway Products Div. | Unitary spring clip rail fastener |
| JPS55108502A (en) * | 1979-02-10 | 1980-08-20 | Tetsudou Kizai Kogyo Kk | Elastic clamp apparatus for rail |
| US4452392A (en) * | 1981-11-04 | 1984-06-05 | Bojji Rajaram | Rail spring clip fastening assembly |
| US4705215A (en) * | 1986-04-17 | 1987-11-10 | Vossloh-Werke Gmbh | Arrangement for securing railway rails onto sleepers |
| DE3820243C2 (en) * | 1988-06-14 | 1999-09-02 | Vossloh Werke Gmbh | Tension clamp and fastening arrangement for railroad tracks |
| GB2230810A (en) * | 1989-04-28 | 1990-10-31 | Pandrol Ltd | Rail fastening clip |
| IN185922B (en) * | 1991-12-18 | 2001-05-19 | Pandrol Ltd | |
| US5735458A (en) * | 1991-12-18 | 1998-04-07 | Pandrol Limited | Fastening railway rails |
| DE9407615U1 (en) * | 1994-05-06 | 1994-08-11 | Missfeldt, Klaus, 24632 Lentföhrden | Device for fastening rails on a support |
| DE102005048829A1 (en) * | 2004-12-09 | 2006-06-29 | SCHWIHAG GESELLSCHAFT FüR EISENBAHNOBERBAU MBH | Positive-elastic rail fastening for track systems |
| WO2006070951A1 (en) * | 2004-12-29 | 2006-07-06 | Korea Raiload Research Instiute | Elastic device for fastening rails to crossties |
| GB2435285A (en) * | 2006-02-21 | 2007-08-22 | Pandrol Ltd | Fastening railway rails |
| DE102017106422A1 (en) * | 2017-03-24 | 2018-09-27 | Vossloh-Werke Gmbh | Shim for supporting a rail for a rail vehicle and attachment point with such a shim |
| CN113026455B (en) * | 2021-04-09 | 2022-10-18 | 衡阳骏兴铁路物资有限公司 | Reinforcing device capable of reinforcing and repairing rail fracture |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2118100A (en) * | 1936-11-11 | 1938-05-24 | Henry C Myer | Tie plate and rail fastener |
| US2690877A (en) * | 1948-09-03 | 1954-10-05 | Snyder Jacob Rush | Fastening for railway rails |
| US2780416A (en) * | 1952-05-30 | 1957-02-05 | Hodel Hans | Elastic spikes for securing railroad tracks |
| BE757946A (en) * | 1969-10-27 | 1971-04-01 | Munch Wilhelm | ATTACHING RAILS |
| GB1327814A (en) * | 1970-02-20 | 1973-08-22 | Molyneux G | Anchorages for track rails |
| US3696998A (en) * | 1970-12-09 | 1972-10-10 | Padinjarai Madom Narayanan Nai | Device for holding down the rail to the sleeper in a railway track |
-
1973
- 1973-05-21 GB GB2421173A patent/GB1475989A/en not_active Expired
-
1974
- 1974-01-31 US US438263A patent/US3876141A/en not_active Expired - Lifetime
- 1974-02-04 CA CA74191848A patent/CA1048466A/en not_active Expired
- 1974-05-14 DE DE2423304A patent/DE2423304A1/en not_active Ceased
- 1974-05-15 NO NO741777A patent/NO141809C/en unknown
- 1974-05-20 BR BR4103/74A patent/BR7404103D0/en unknown
- 1974-05-20 AU AU69140/74A patent/AU6914074A/en not_active Expired
- 1974-05-20 LU LU70121A patent/LU70121A1/xx unknown
- 1974-05-20 BE BE144549A patent/BE815303A/en not_active IP Right Cessation
- 1974-05-20 FR FR7417444A patent/FR2230798B1/fr not_active Expired
- 1974-05-20 NL NL7406750A patent/NL7406750A/xx unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3111876A1 (en) * | 1980-04-03 | 1982-06-09 | Ernst Schmitthelm, Federn- Und Metallwarenfabrik Gmbh & Co Kg, 6900 Heidelberg | Resilient rail fastening on concrete sleepers |
Also Published As
| Publication number | Publication date |
|---|---|
| BR7404103D0 (en) | 1975-09-30 |
| FR2230798B1 (en) | 1981-04-30 |
| NO141809C (en) | 1980-05-14 |
| GB1475989A (en) | 1977-06-10 |
| US3876141A (en) | 1975-04-08 |
| DE2423304A1 (en) | 1974-12-19 |
| NO741777L (en) | 1974-11-22 |
| BE815303A (en) | 1974-09-16 |
| NL7406750A (en) | 1974-11-25 |
| NO141809B (en) | 1980-02-04 |
| AU6914074A (en) | 1975-11-20 |
| FR2230798A1 (en) | 1974-12-20 |
| LU70121A1 (en) | 1974-10-09 |
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