GB2555467A - Securing a screw in a hole - Google Patents
Securing a screw in a hole Download PDFInfo
- Publication number
- GB2555467A GB2555467A GB1618340.2A GB201618340A GB2555467A GB 2555467 A GB2555467 A GB 2555467A GB 201618340 A GB201618340 A GB 201618340A GB 2555467 A GB2555467 A GB 2555467A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plug
- hole
- square
- section
- screw
- 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- Withdrawn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
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000004744 fabric Substances 0.000 claims abstract description 7
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims abstract description 4
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 claims abstract description 4
- 239000011507 gypsum plaster Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000003213 activating effect Effects 0.000 claims 1
- 230000004913 activation Effects 0.000 claims 1
- 230000004323 axial length Effects 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract description 4
- 239000004033 plastic Substances 0.000 abstract description 4
- 239000003822 epoxy resin Substances 0.000 abstract description 3
- 229920000647 polyepoxide Polymers 0.000 abstract description 3
- 239000010440 gypsum Substances 0.000 abstract description 2
- 229910052602 gypsum Inorganic materials 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 239000011505 plaster Substances 0.000 description 4
- KHOITXIGCFIULA-UHFFFAOYSA-N Alophen Chemical compound C1=CC(OC(=O)C)=CC=C1C(C=1N=CC=CC=1)C1=CC=C(OC(C)=O)C=C1 KHOITXIGCFIULA-UHFFFAOYSA-N 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
Classifications
-
- 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
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/001—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with means for preventing rotation of the dowel
-
- 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
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dowels (AREA)
Abstract
A plug having a triangular or square transverse cross section may be inserted into an oversized existing hole in a wall. The body of the plug may be surrounded by fabric that is impregnated with a quick setting material such as plaster of Paris, gypsum or an epoxy resin. In use the material may be wetted and inserted with the plug into a hole. A screw receiving hole 12 is provided. A flange or lip 14 prevents the plug from over insertion. Longitudinal slits 16 may expand as a fixing is tightened in the plug. The plug may be made from plastic, wood or metal. The non-round cross section of the plug helps to prevent the plug rotating as the fixing is tightened.
Description
(71) Applicant(s):
Alan Stephenson
Horton Road, DATCHET, Berkshire, SL3 9EP, United Kingdom (72) Inventor(s):
Alan Stephenson (74) Agent and/or Address for Service:
Alan Stephenson
Horton Road, DATCHET, Berkshire, SL3 9EP, United Kingdom (51) INT CL:
F16B 13/00 (2006.01) (56) Documents Cited:
EP 0580998 A1 WO 2007/079797 A1
DE 003336809 A
GB191220295A
FR962536 (58) Field of Search:
INT CLF16B
Other: WPI, EPODOC, INTERNET (54) Title of the Invention: Securing a screw in a hole
Abstract Title: Triangular or square cross section fixing plug with filler covering (57) A plug having a triangular or square transverse cross section may be inserted into an oversized existing hole in a wall. The body of the plug may be surrounded by fabric that is impregnated with a quick setting material such as plaster of Paris, gypsum or an epoxy resin. In use the material may be wetted and inserted with the plug into a hole. A screw receiving hole 12 is provided. A flange or lip 14 prevents the plug from over insertion. Longitudinal slits 16 may expand as a fixing is tightened in the plug. The plug may be made from plastic, wood or metal. The non-round cross section of the plug helps to prevent the plug rotating as the fixing is tightened.
SECURING A SCREW IN A HOLE ’1'
This invention relates to a means for securing a screw in a hole formed for example in a panel or wall. In my British patent EPI 1857981 have disclosed and claimed a method and means for securing a screw in a plug which is itself secured in an over-sized hole by means of a fabric shroud impregnated with a quick-setting material, such as plaster of
Paris, that solidifies around the plug after being dampened with water before being inserted in the hole. The fabric and plaster thus fill the space between the plug and the surface defining the hole, and so hold the plug securely in place, and against rotation when a screw is being driven io home in the plug.
Over-exertion to insert the screw in the plug can result in undesirable rotation of the plug against the resistance offered to it by the fabric and plaster, thus rendering the plug useless to secure the screw, and defeating the objective of securing the screw in the wall or panel. Small integral radial wings have been provided externally on the plug, to increase the resistance of the plug to rotation when the screw is being driven home. But such radial wings provide little additional resistance to rotation of the plug.
The present invention constitutes a valuable improvement over that disclosed and claimed by me in the above-cited patent specification.
-2According to one feature of the present invention a plug for carrying out the methods disclosed in the cited patent has a square or a triangular transverse cross section, preferably uniformly along its whole length, and may also exhibit a twist in successive transverse cross sections from end to end. Such a plug offers substantial resistance to rotation of the plug in the solidified fabric and plaster when a screw is being driven home in the plug.
The plug thus comprises a short length of an appropriate rigid material (e.g. plastics, wood or metal) having a square or a triangular transverse io cross section and a longitudinal hole for receiving a screw. The plug may have at one end thereof a small flange to limit the depth to which the plug may be inserted in a hole. Longitudinal slits formed in the sides of the plug enable it to be expanded by a screw being driven into the plug. If desired, the plug may exhibit a small twist longitudinally between its ends.
The method of using the plug is the same as that described in the aforementioned British patent, to which the reader’s attention is hereby directed for details of the method. Relevant parts of that patent are hereby incorporated in this specification by reference. For the conical plug there shown, the present invention substitutes a plug having a
-3 uniform square or triangular transverse cross section along its whole length.
One plug according to the present invention is shown by way of example in the accompanying self-explanatory drawings, where the figures show respectively side and end elevations, and two isometric views.
The plug, formed of an appropriate suitable rigid material (e.g. plastics, wood or metal), comprises a prism-shaped shank portion 10 having a uniform square transverse cross section along its entire length. It is pierced by a longitudinal screw-receiving hole 12, and carries at one end io an integral shallow flange 14 for limiting the depth to which the plug may be inserted in a hole. Longitudinal slits 16 are formed in the longitudinal sides of the shank portion to enable it to be radially expanded by a screw on being driven into the hole.
In another example of a plug according to the present invention (not shown in the drawings) the shank portion has a uniform triangular cross section (instead of a square transvers cross section), along its entire length.
In this specification, reference to any appropriate or suitable material is intended to imply any material that is suitable for making plugs for securing a screw in a hole.
-4In carrying out one method according to the present invention, the quick setting material comprises an epoxy resin, instead of Plaster of Paris.
Claims (4)
1. A method of securing a screw in an over-sized hole formed in a panel or wall comprising the steps of :5 (a) providing a plug to receive the screw, which plug has a transverse cross section which is square or triangular, and an axial hole in which to receive the screw;
/ (b) enveloping the plug in a fabric shroud which is impregnated with • ( ‘ a quick-setting material, • I <
io (c) activating the shroud thereby to initiate setting of the quicksetting material; and • « (d) entering the enshrouded plug into the hole thereby to fill the hole, and in the course of time to hold the plug securely.
2. A method according to Claim 1, wherein the quick-setting
15 material comprises plaster of Paris, and activation is achieved by dampening with water.
3. A method as defined in claim 1 or claim 2, wherein the plug has a uniform square or a triangular transverse cross section along the whole axial length of the plug from end to end.
4. A method as defined in claim 1 or claim 2, wherein the plug is twisted about its longitudinal axis from end to end.
Intellectual
Property
Office
Application No: GB1618340.2 Examiner: Gareth Jones
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1618340.2A GB2555467A (en) | 2016-10-29 | 2016-10-29 | Securing a screw in a hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1618340.2A GB2555467A (en) | 2016-10-29 | 2016-10-29 | Securing a screw in a hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB201618340D0 GB201618340D0 (en) | 2016-12-14 |
| GB2555467A true GB2555467A (en) | 2018-05-02 |
Family
ID=57963729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1618340.2A Withdrawn GB2555467A (en) | 2016-10-29 | 2016-10-29 | Securing a screw in a hole |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2555467A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191220295A (en) * | 1912-09-06 | 1913-09-08 | William Wallace Timewell | Improvements in Wall and the like Plugs. |
| FR962536A (en) * | 1950-06-14 | |||
| DE3336809A1 (en) * | 1983-10-10 | 1985-05-15 | Raimund 7730 Villingen-Schwenningen Andris | Plastic dowel for light concretes, especially aerated concretes or aeroconcretes |
| EP0580998A1 (en) * | 1992-07-25 | 1994-02-02 | Fischerwerke Arthur Fischer GmbH & Co. KG | Metallic expansion dowel |
| WO2007079797A1 (en) * | 2005-12-21 | 2007-07-19 | Fischerwerke Artur Fischer Gmbh & Co. Kg | Fastening arrangement |
-
2016
- 2016-10-29 GB GB1618340.2A patent/GB2555467A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR962536A (en) * | 1950-06-14 | |||
| GB191220295A (en) * | 1912-09-06 | 1913-09-08 | William Wallace Timewell | Improvements in Wall and the like Plugs. |
| DE3336809A1 (en) * | 1983-10-10 | 1985-05-15 | Raimund 7730 Villingen-Schwenningen Andris | Plastic dowel for light concretes, especially aerated concretes or aeroconcretes |
| EP0580998A1 (en) * | 1992-07-25 | 1994-02-02 | Fischerwerke Arthur Fischer GmbH & Co. KG | Metallic expansion dowel |
| WO2007079797A1 (en) * | 2005-12-21 | 2007-07-19 | Fischerwerke Artur Fischer Gmbh & Co. Kg | Fastening arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201618340D0 (en) | 2016-12-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |