GB2351097A - Telescopic support having inner and outer members with apertures of different spacing - Google Patents
Telescopic support having inner and outer members with apertures of different spacing Download PDFInfo
- Publication number
- GB2351097A GB2351097A GB9912107A GB9912107A GB2351097A GB 2351097 A GB2351097 A GB 2351097A GB 9912107 A GB9912107 A GB 9912107A GB 9912107 A GB9912107 A GB 9912107A GB 2351097 A GB2351097 A GB 2351097A
- Authority
- GB
- United Kingdom
- Prior art keywords
- setting means
- outer member
- telescopic support
- extension
- spacing
- 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- Withdrawn
Links
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000009412 basement excavation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G25/00—Shores or struts; Chocks
- E04G25/04—Shores or struts; Chocks telescopic
- E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G25/00—Shores or struts; Chocks
- E04G25/04—Shores or struts; Chocks telescopic
- E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
- E04G25/061—Shores or struts; Chocks telescopic with parts held together by positive means by pins
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/102—Removable shuttering; Bearing or supporting devices therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/10—Telescoping systems
- F16B7/105—Telescoping systems locking in discrete positions, e.g. in extreme extended position
Abstract
A telescopic support, for supporting structures such as scaffolding, trench boxes, etc., includes an inner member (2) and an outer member (4), in the form of a sleeve, which is slidable over the inner member. Both the inner and outer members are provided with at least two spaced apertures (22, 24), the spacing between the apertures (22) on the inner member differing from the spacing between the apertures (24) on the outer member, thus allowing the length of the support to be finely adjusted. The inner and outer members are preferably straight elongate hollow members and the support is preferably in the form of a strut or prop. A method of producing such a telescopic support and a method of supporting a structure using the telescopic support are also described.
Description
2351097 A TELESCOPIC SUPPORT The present invention relates to a telescopic
support and, in particular, but not exclusively to a telescopic support such as a telescopic shaft or prop used for supporting construction site structures.
Telescopic props and shafts are well known in the. construction industry. The props are most commonly used in scaffolding applications and the struts have many applications in excavation sites including manhole boxes, trench boxes, drag boxes, manhole braces and shaft braces. Typically, the adjustable props and shafts have an inner and outer member wherein the outer member slides over the is inner member in a sleeve and arm arrangement. Typically, the outer member will have a series of aligned equally spaced holes formed in the wall thereof. The inner member will have a single hole formed in the wall and will be orientated so that the inner hole follows the alignment of the outer holes during inward and outward movement with respect to the outer member. In use, the length of the prop or shaft is adjusted in increments determined by the distance between the holes in the outer member. The inner member and outer member may be secured together by a suitable pin when the inner hole and one of the outer holes is in superposed relationship. The greater the number of holes in the outer member, the greater the number of possible positions. Thus, increased control over the length of the shaft or prop is effected by the occurrence of smaller spacing between the outer member holes. However, a high incidence of holes in the outer member also weakens the structure of the strut or prop and, in use, it is perceived that a compromise must be struck between the opposed requirements of prop or shaft strength and fine incremental control over the length of the adjustable support.
According to a f irst aspect of the present invention there is provided a telescopic support comprising an inner member and an outer member, the outer member being designed in the form of a sleeve for the inner member and being slidable thereover between a fully retracted position and a fully extended position, the inner and outer member each having at least two spaced extension setting means, the setting positions being provided at extension positions where at least one setting means on the inner member is placed in superposed relationship with at least one setting means on the outer member, wherein there is a differential in the respective spacings between the said at least two setting means on the inner member and the said at least two setting means on the outer member, the differential in the spacings providing at least one further setting means superposed relationship between the inner and outer members. Advantageously, the difference in the spacing between setting means on the inner and outer members increases the number of possible extension lengths for the support.
Preferably, there are at least three extension setting means on the outer member, more preferably, at least four, most preferably at least five.
Preferably, there are at least three extension setting means on the inner member, more preferably, at least four.
Preferably, if there are more than two, the plurality of extension setting means on the outer member is aligned and, preferably, each extension setting means is equally 3 spaced from adjacent extension setting means on the said member.
Preferably, if there are more than two, the plurality of extension setting means on the inner member is aligned and, preferably, each extension setting means is equally spaced from adjacent extension setting means on the said member.
However, it is not essential that the adjacent setting means on each of the said inner or outer member respectively are equally spaced. Nevertheless, this configuration improves the ease of manufacture and, advantageously, provides extension increments of the same length.
A still further advantage of the invention is the possibility of finer increments without increasing the number of extension setting means and compromising the structural integrity of the inner and/or outer member. Thus, the invention also provides the possibility of a telescopic support with fewer extension setting means and, therefore, a support of greater strength.
Preferably, there is a differential spacing of each spacing of the setting means on the inner member compared with each spacing of the setting means on the outer member.
Preferably, the two spacings between at least three successive setting means on the inner member are equivalent, more preferably, the spacing between at leastfour successive setting means on the inner member is equivalent. Preferably, the two spacings between at least three successive setting means on the outer member is equivalent, more preferably, the spacing between at least four successive setting means on the outer member is equivalent. Most preferably, the spacing between at least five successive setting means on the outer member is 5 equivalent.
According to a second aspect of the present invention there is provided a method of producing a telescopic support comprising the steps of:- forming an inner member and an outer member, the outer member being designed in the form of a sleeve for the inner member and being slidable thereover between a fully retracted position and a fully extended position; forming at least two spaced extension setting means in each of the said inner and outer members, the setting positions being provided at extension lengths where at least one setting means on the inner member is placed in superposed relationship with at least one setting means on the outer member, wherein there is a differential in the respective spacings between the said at least two setting means on the inner member and the said at least two setting means on the outer member, the differential in the spacings providing at least one further setting means superposed relationship between the inner and outer members.
According to a third aspect of the present invention, there is provided a method for supporting a structure comprising the steps of; locating a support in accordance with the first aspect of the invention between two areas to be held in spaced disposition; determining the appropriate length of the support to maintain the said two areas in spaced disposition; and securing the support in position by superposing an 5 extension setting means on the inner member with an extension setting means on the outer member and securing the respective extension setting means of the inner and outer member to each other in the said superposed position.
The areas may form part of construction structures or may be the ground or excavation walls. For instance, the areas may be scaffolding structures, trench boxes, manhole boxes, trench sheets, piling or other excavation wall15 sheets.
Preferably, the inner and outer member are straight elongate hollow members. Preferably, the cross-section of the said member is circular or square.
Preferably, the support is a strut or a prop. Such members are typically under compression but in some applications the support may be under tension and the invention may also be utilised in such applications.
Preferably, each extension setting means on the innerand/or outer member comprises a hole formed in the said inner and/or outer member.
Preferably, the respective extension setting means on the inner and outer member superpose with each other to provide a setting position which when secured gives an appropriate extension length.
If the extension setting means are in the form of holes a fixing pin may be used to fix the holes together in superposed relationship. However, it is possible that one of the extension setting means on the inner or outer member may comprise an accompanying protruding member to engage with the co-operating hole on the other member. other fixing mechanisms will be known to those skilled in the art and may be used in conjunction with the extension setting means or form part thereof. The extension setting means on the inner member may be different than those on the outer member so long as they co-operate in use to coincide and provide a fixing location. Preferably, fixing is effected by a protruding member which protrudes through both the inner setting means and the outer setting is means in sup erposed relationship. Preferably, the protruding member is a fixing pin.
Preferably, the inner member extension setting means spacing is greater than the outer member extension setting means spacing. Preferably, the difference (Y) between the larger spacing and the smaller spacing is an amount which is divisible into the smaller spacing to give a whole number (n) and, preferably, the number of extension setting means being spaced by the larger spacing is at least n, preferably equal to n. In this manner, the incremental adjustment length of the support is repeatable and equal to the interval Y.
Preferably, the number of extension setting means being spaced by the smaller spacing is at least n + 1.
In this manner, there are at least n increments from the fully retracted position which utilises all the larger spaced extension setting means when the latter is equal to n.
It will be appreciated that the larger spacing of the extension setting means may be found on the inner or outer member. However, it is preferred that the larger spacing is found on the inner member.
An embodiment of the invention will now be described with reference to the accompanying drawings in which; Figure la shows the inner arm of a prior art telescopic strut;
Figure 1b shows an outer sleeve for the prior art arm of figure la;
Figures 2a - f show incremental adjustments to the assembled strut of figure la and b; Figure 3a shows the inner arm of a telescopic strut in 15 accordance with the invention; Figure 3b shows the outer sleeve of the telescopic strut of figure 3a; Figure 4a - u shows the incremental adjustment of the telescopic strut of figure 3a and b.
Referring to figure 3, a bracing strut comprises two parts, an inner hollow arm 2 and an outer hollow sleeve 4. Each part comprises a hollow tubular pipe 6,8 which is open at one end 10, 12 and closed at the opposite end by a centrally located overlapping flat plate 14,16 of wider cross section than the cross section of the cylindrical tube 6,8. The flat plate 16 of the outer member is wider than the flat plate 14 of the inner member and the outer member flat plate has a pair of webs 18,20 which extend from the overlapping base portions of the flat plate on either side thereof and partially up the cylinder wall 8 to provide additional strength. The webs provide additional support between the closed end of the hollow cylinder 8 and the flat plate 16. The barrel of the respective cylinders 6,8 has in spaced disposition, parallel with the axis of the respective cylinders, a series of equally spaced aligned holes. The aligned holes on the outer tube 8 extend along the whole of the barrel of the cylinder whereas the holes on the inner cylinder 6 extend from the open end 10 thereof approximately halfway along the cylinder. The inner cylinder 6 has four equally spaced holes 22 and the outer cylinder 8-has nine equally spaced holes 24. The holes on the outer cylinder are separated by a distance of 200 mm increments and the holes on the inner cylinder are separated by 250 mm. increments, in each case measured from centre to centre of each hole.
The width of the outer cylinder is such as to be close fitting with the outer diameter of the inner cylinder 6 so that the inner cylinder may slide within the outer cylinder along the full length thereof to provide a telescopic incremental strut. In use, an inner hole and an outer hole are superposed and a pin is located there through to thereby secure the bracing strut at the desired extension length. Figure 4 shows twenty one possible positions which the combination of holes provides.
Referring to figure 4a, the telescopic strut is fully retracted and the pin 26 which is shown schematically in figure 4, is located between the hole 22(d) on the inner cylinder nearest to the open end 10 thereof and the hole 24(i) on the outer cylinder nearest to the closed plate end 16 thereof. In figure 4b, the inner sleeve has been extended by 50mm so that the hole 22a in the inner cylinder which is nearest to the closed end 14 of the inner cylinder is aligned with the middle hole 24e of the outer cylinder 8. Similarly, referring to figure 4c, a further 50mm incremental extension of the telescopic strut causes the hole 22b to become aligned with the fourth hole from the base plate 24f in the outer cylinder 8.
Similarly, hole 22c becomes aligned with hole 24g in figure 4d and hole 22d becomes aligned with hole 24h in figure 4e. Referring to figure 4f, hole 22a has now moved through 20Omm. since it last coincided with an outer hole 24e, as previously described in figure 4b and is, accordingly, now aligned with hole 24d. As the telescopic strut is further extended progressively by 5Omm increments, each of the inner holes 22b, 22c and 22d is aligned at each stage with the next hole in the series 24(e), 24(f) and 24(g) respectively along the outer cylinder 8. This cycle is repeated in each of the series from shown in figures 4j-m, 4n-q and 4r-v, in each case the inner holes become aligned in turn with the next hole in the series on the outer telescopic strut. Although not shown in figure 4, it is possible to further extend the strut although, in such a scenario, it would not be possible to completely maintain the Somm incremental shift because the inner holes would be progressively located beyond the upper whole 24a of the outer cylinder.
Accordingly, the invention provides a way in which the control over the length of the telescopic support can be' improved dramatically without the necessity of providing a corresponding number of holes in the outer member. It will be appreciated by those skilled in the art that although typically, the aligned holes and pin arrangement is the most commonly used securing mechanism other suitable secure mechanisms could be used. one possibility is a protruding member located on the inner cylinder at each of the incremental spaced extension setting locations. The protrusions may be springloaded to allow the sleeve to slide thereover or they may be manually operated by other mechanical means.
Referring to figures 1 and 2, a typical prior art bracing strut is shown. The bracing strut 30 comprises two parts, an inner hollow arm 32 and an outer hollow sleeve 34.
- Each part comprises a hollow tubular pipe 36, 38 which is open at one end 40, 42 and closed at the opposite end by a centrally located overlapping flat plate 44, 46 of wider cross section than the cross section of the cylinder tube portions 36, 38. The flat plate 46 of the outer member is wider than the flat plate 44 of the inner member and the outer member flat plate has a pair of webs 48, 50 which extend from the overlapping base portions of a flat plate on either side thereof and partially up the cylinder wall 38 to provide additional strength. The webs provide additional support between the closed end of the hollow cylinder 38 and the flat plate 46. The barrel of the outer sleeve 38 has in spaced disposition, parallel with the axis of the cylinder 38, a series of equally spaced- aligned holes 52. The aligned holes on the outer sleeve 34 extend just over halfway along the sleeve from the flat plate 46 upwards. The outer cylinder 38 has six equally spaced holes 52 a-f and the holes on the outer sleeve are separated by a distance of 200mm. On the inner sleeve 32, is located a single hole 54 close to the open end 40 of, the cylinder 36. The width of the outer cylinder is such as to be close f itting with the outer diameter of the inner cylinder 36 so that the inner cylinder may slide within the outer cylinder along the full length thereof to provide a telescopic incremental strut. In use, the inner hole 54 and one of the outer holes 52 are superposed and a pin is located therethrough to thereby secure the bracing strut at the design length. Figure 2 shows the limited number of six positions which the combination of holes provides. Referring to figure 2a, the telescopic strut is fully extended and the pin 56 which is shown schematically in figure 2 is located between the hole 52a and the inner hole 54. In f igure 2b, the inner sleeve has been retracted with respect to the outer sleeve by a distance of 200mm so that the inner hole 54 now aligns with the hole 52b located in the outer sleeve. Thi s process is successively repeated so that the inner hole 54 successively aligns with the outer holes 52c, 52d, 52e and 52f. It will be appreciated that the prior art only provides a limited number of incremental positions to determined by the number and distance between the outer holes.
The reader's attention is directed to all papers and documentswhich are filed concurrently with or previous to this specification in connection with this application and which are open to public inspection with this specification, and the contents of all such papers and documents are incorporated herein by reference.
All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and/or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations where at least some of such features and/or steps are mutually exclusive.
Each feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is one example only of a generic series of equivalent or similar features.
The invention is not restricted to the details of the foregoing embodiment(s). The invention extends to any novel one, or any novel combination, of the features disclosed in this specification (including any accompanying claims, abstract and drawings), or to any novel one, or any novel combination, of the steps of any method or process so disclosed.
13
Claims (23)
1. A telescopic support comprising an inner member and an outer member, the outer member being designed in the form of a sleeve for the inner member and being slidable thereover between a fully retracted position and a fully extended position, the inner and outer member each having at least two spaced extension setting means, the setting positions being provided at extension positions where at least one setting means on the inner member is placed in superposed relationship with at least one setting means on the outer member, wherein there is a differential in the respective spacings between the said at least two setting means on the inner member and the said at least two setting means on the outer member, the differential in the spacings providing at least one further setting means superposed relationship between the inner and outer members.
2. A telescopic support according to claim 1, wherein there are at least three extension setting means on the outer member.
3. A telescopic support according to any of claims 1-2, wherein there are at least three extension setting means on the inner member.
4. A telescopic support according to any of claims 1-3, wherein if there are more than two, the plurality of extension setting means on the outer member are aligned.
5. A telescopic support according to claim 4, wherein each extension setting means is equally spaced from adjacent extension setting means on the said member.
6. A telescopic support according to any of claims 1-5, wherein if there are more than two, the pluralityof extension setting means on the inner member are aligned.
7. A telescopic support according to claim 6, wherein each extension setting means is equally spaced from adjacent extension setting means on the said member.
8. A telescopic support according to any of claims 1-7, wherein there is a differential spacing of each spacing of the setting means on the inner member compared with each spacing of the setting means on the outer member.
9. A telescopic support according to any of claims 1-8, wherein two spacings between at least three successive setting means on the inner member are of equivalent length.
10. A telescopic support according to any of claims 1-9, wherein the two spacings between at least three successive setting means on the outer member are of equivalent length.
11. A method of producing a telescopic support comprising the steps of:
forming an inner member and an outer member, the outer member being designed in the form of a sleeve for the inner member and being slidable thereover between a fully retracted position and a fully extended position; forming at least two spaced extension setting means in each of the said inner and outer members, the setting positions being provided at extension lengths where at least one setting means on the inner member is placed in superposed relationship with at least one setting means on the outer member, wherein there is a differential in the respective spacings between the said at least two setting means on the inner member and the said at lea st two setting means on the outer member, the differential in the spacings providing at least one further setting means superposed relationship between the inner and outer members.
12. A method for supporting a structure comprising the steps of; locating a support in accordance with claim 1 between two areas to be held in spaced disposition; determining the appropriate length of the support to is maintain the said two areas in spaced disposition; and securing the support in position by superposing an extension setting means on the inner member with an extension setting means on the outer member and securing the respective extension setting means of the inner and outer member to each other in the said superposed position.
13. A method according to any of claims 11-12, wherein the inner and outer member are straight elongate hollow members.
14. A method according to any of claims 11-13, wherein the support is a strut or a prop.
15. A method according to any of claims 11-14, wherein each extension setting means on the inner and/or outer member comprises a hole formed in the said inner and/or outer member.
16 16. A method according to any of claims 11-15, wherein the respective extension setting means on the inner and outer member superpose with each other to provide a setting position which when secured gives an appropriate 5 extension length.
17. A telescopic support according to any of claims 1-10, wherein the inner member extension setting means spacing is greater than the outer member extension setting means spacing.
18. A telescopic support according to claim 17, wherein the difference (Y) between the larger spacing and the smaller spacing is an amount which is divisible into the smaller spacing to give a whole number (n).
19. A telescopic support according to claim 18, wherein the is number of extension setting means being spaced by the larger spacing is at least n.
20. A telescopic support according to any of claims 18-19, wherein the number of extension setting means being spaced by the smaller spacing is at least n + 1.
21. A telescopic support as hereinbefore described and with reference to the drawings.
22. A method of producing a telescopic support as hereinbefore described and with reference to the drawings.
23. A method of supporting a structure as hereinbefore described and with reference to the drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9912107A GB2351097A (en) | 1999-05-26 | 1999-05-26 | Telescopic support having inner and outer members with apertures of different spacing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9912107A GB2351097A (en) | 1999-05-26 | 1999-05-26 | Telescopic support having inner and outer members with apertures of different spacing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9912107D0 GB9912107D0 (en) | 1999-07-28 |
| GB2351097A true GB2351097A (en) | 2000-12-20 |
Family
ID=10854098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9912107A Withdrawn GB2351097A (en) | 1999-05-26 | 1999-05-26 | Telescopic support having inner and outer members with apertures of different spacing |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2351097A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1930093A1 (en) * | 2006-12-06 | 2008-06-11 | Celette S.A. | Device for inspecting the deformations of a vehicle body and associated workbench |
| AT512243A1 (en) * | 2011-12-07 | 2013-06-15 | Dywidag System Internat Gmbh | COMPRESSION BODY FOR THE MUTUAL SUPPORTING OF TUNNEL CLADDING ELEMENTS AND / OR UNDERLYING CAVITY ELEMENTS |
| CN105114102A (en) * | 2015-09-01 | 2015-12-02 | 东莞市万桥钢模有限公司 | Subway station formwork trolley |
| CN105650075A (en) * | 2016-03-05 | 2016-06-08 | 张冬 | Supporting rod of wire drawing machine |
| GB2598124A (en) * | 2020-08-19 | 2022-02-23 | Ischebeck Titan Ltd | Climbing formwork |
| GB2607705A (en) * | 2021-04-21 | 2022-12-14 | Abbey Pynford Holdings Ltd | Improvements relating to foundation rafts |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB552660A (en) * | 1942-03-27 | 1943-04-19 | George Harry Gascoigne | An improved telescopic post |
| GB839600A (en) * | 1958-02-28 | 1960-06-29 | Audens Ltd | Improvements relating to props for use in concrete and the like constructional work |
| CH579186A5 (en) * | 1974-03-05 | 1976-08-31 | Studer Bau & Indmasch | Variable telescopic support for supporting trenches - two telescopic sections are pumped apart and secured by pin through both sections |
| US4572494A (en) * | 1981-05-22 | 1986-02-25 | Goulter Victor H | Method of providing multiplied force using vernier members and pry lever |
| EP0715041A1 (en) * | 1994-11-30 | 1996-06-05 | Adrianus Johannus Leonardus Marinus Bekkers | Building strut |
| US5653415A (en) * | 1992-04-03 | 1997-08-05 | Peri Gmbh | Adjustable-height support for shuttering in the building trade |
-
1999
- 1999-05-26 GB GB9912107A patent/GB2351097A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB552660A (en) * | 1942-03-27 | 1943-04-19 | George Harry Gascoigne | An improved telescopic post |
| GB839600A (en) * | 1958-02-28 | 1960-06-29 | Audens Ltd | Improvements relating to props for use in concrete and the like constructional work |
| CH579186A5 (en) * | 1974-03-05 | 1976-08-31 | Studer Bau & Indmasch | Variable telescopic support for supporting trenches - two telescopic sections are pumped apart and secured by pin through both sections |
| US4572494A (en) * | 1981-05-22 | 1986-02-25 | Goulter Victor H | Method of providing multiplied force using vernier members and pry lever |
| US5653415A (en) * | 1992-04-03 | 1997-08-05 | Peri Gmbh | Adjustable-height support for shuttering in the building trade |
| EP0715041A1 (en) * | 1994-11-30 | 1996-06-05 | Adrianus Johannus Leonardus Marinus Bekkers | Building strut |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1930093A1 (en) * | 2006-12-06 | 2008-06-11 | Celette S.A. | Device for inspecting the deformations of a vehicle body and associated workbench |
| AT512243A1 (en) * | 2011-12-07 | 2013-06-15 | Dywidag System Internat Gmbh | COMPRESSION BODY FOR THE MUTUAL SUPPORTING OF TUNNEL CLADDING ELEMENTS AND / OR UNDERLYING CAVITY ELEMENTS |
| AT512243B1 (en) * | 2011-12-07 | 2013-09-15 | Dywidag System Internat Gmbh | COMPRESSION BODY FOR THE MUTUAL SUPPORTING OF TUNNEL CLADDING ELEMENTS AND / OR UNDERLYING CAVITY ELEMENTS |
| CN105114102A (en) * | 2015-09-01 | 2015-12-02 | 东莞市万桥钢模有限公司 | Subway station formwork trolley |
| CN105650075A (en) * | 2016-03-05 | 2016-06-08 | 张冬 | Supporting rod of wire drawing machine |
| GB2598124A (en) * | 2020-08-19 | 2022-02-23 | Ischebeck Titan Ltd | Climbing formwork |
| GB2607705A (en) * | 2021-04-21 | 2022-12-14 | Abbey Pynford Holdings Ltd | Improvements relating to foundation rafts |
| GB2612285A (en) * | 2021-04-21 | 2023-05-03 | Abbey Pynford Holdings Ltd | Improvements relating to foundation rafts |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9912107D0 (en) | 1999-07-28 |
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