GB2269334A - Screw, bolt, nail and stud extractor - Google Patents

Screw, bolt, nail and stud extractor Download PDF

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Publication number
GB2269334A
GB2269334A GB9216819A GB9216819A GB2269334A GB 2269334 A GB2269334 A GB 2269334A GB 9216819 A GB9216819 A GB 9216819A GB 9216819 A GB9216819 A GB 9216819A GB 2269334 A GB2269334 A GB 2269334A
Authority
GB
United Kingdom
Prior art keywords
drill guide
screw
nail
bolt
stud
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Withdrawn
Application number
GB9216819A
Other versions
GB9216819D0 (en
Inventor
John Paul Rule
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB9216819A priority Critical patent/GB2269334A/en
Publication of GB9216819D0 publication Critical patent/GB9216819D0/en
Publication of GB2269334A publication Critical patent/GB2269334A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B49/00—Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
    • B23B49/02—Boring templates or bushings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

A screw, bolt, nail or stud extractor comprises a punch (Fig.1, not shown) which is used to make an indentation centred over the fastener to be extracted. A drill guide 4 is placed into hole 6 in a drill guide housing, Fig. 3, and edge 5 of drill guide 4 is positioned in the indentation. A drill is then introduced into hole 3 of the drill guide and the fastener is then drilled out. <IMAGE>

Description

SCREW, SLg, NAIL AND STUD EXTRACTOR This invention refers to a screw, bolt, nail and stud extractor.
Broken or immovable screws , bolts nails and studs are difficult to extract##ac#urat-e4y particularly when it is important not to dam#age the material in which they are embedded.
According to the present invention there is provided a punch, drill guide and drill guide housing to facilitate the removal of a screw, bolt, nail and stud by means of a manual or electric drill.
A specific embodiment of the invention will now be described by way of example with reference to the accompanying drawings in which s- Fig. 1 shows the tempered steel punch Fig. 2 shows the tempered steel drill guide Fig. 3 shows the mild steel drill guide housing Refering to the drawings the extractor consists of 3 pieces, the punch, fig. 1, the drill guide fig.2, and the drill guide housing fig. 3.
In order to use the extractor the punch fig.l is centered over the screw, bolt, nail or stud to be extracted and the cutting edge 2 is hammered well into the material in which it is embedded. This circular indentation provides accurate positioning for the drill guide edge 5 which is identical to that of the punch edge 2.
The drill guide is then placed in the drillguide housing fig.3, into the aperture 6, the drill guide then clamped by means of a screw in the threaded aperture 9 which makes contact with the drill guide body 4.
The drill guide is then tapped into the indentation previously made by the punch.
The drill guide housing is secured in place by means of either screws through apertures 7, or by means of the operator's weight applied to a suitable board attatched with screws through apertures 8, or by suitable clamping.
A drill bit of i mm. less in diameter than that of the aperture 3 is introduced into apferturs 3 and pushed down onto the screw, bolt, nail or stud which can then be completely or partialy drilled out by means of a manual or electric drill.

Claims (2)

1 An extractor comprising of a punch,drill guide, and drill guide housing to facilitate the removal of a screw, bolt, nail or stud by means of a manual or electric drill.
2 An extractor substantially as described herein with reference to figures 1-3 of the accompanying drawings.
GB9216819A 1992-08-07 1992-08-07 Screw, bolt, nail and stud extractor Withdrawn GB2269334A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9216819A GB2269334A (en) 1992-08-07 1992-08-07 Screw, bolt, nail and stud extractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9216819A GB2269334A (en) 1992-08-07 1992-08-07 Screw, bolt, nail and stud extractor

Publications (2)

Publication Number Publication Date
GB9216819D0 GB9216819D0 (en) 1992-09-23
GB2269334A true GB2269334A (en) 1994-02-09

Family

ID=10720009

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9216819A Withdrawn GB2269334A (en) 1992-08-07 1992-08-07 Screw, bolt, nail and stud extractor

Country Status (1)

Country Link
GB (1) GB2269334A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2894274A1 (en) * 2005-12-02 2007-06-08 Burgaud Sas Soc Par Actions Si Shutter leaf stop, has lever mechanism including front sub-assembly that has box carrying handle for releasing stop mounted pivotally in box, and rear sub-assembly that has slide and another box with window receiving head of lock stop
CN103302516A (en) * 2013-05-16 2013-09-18 淮北林光钻探机电工程有限公司 Fixing device for drill hole of internal-square plug-in drill rod female head
US20140133928A1 (en) * 2012-11-12 2014-05-15 Scott A. BEYDLER Tool for Removing Broken Threaded Fasteners

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB658432A (en) * 1949-04-22 1951-10-10 Paul Svend Hakon Flemming Improvements relating to centre punches
GB1080751A (en) * 1964-08-10 1967-08-23 Guy Olney Conner A fastener to be used for example in lieu of a stud or screw for holding parts together
US4445264A (en) * 1982-03-09 1984-05-01 Carl Banerian Tool for a method of forming dimples in sheet metal for recessing rivet heads

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB658432A (en) * 1949-04-22 1951-10-10 Paul Svend Hakon Flemming Improvements relating to centre punches
GB1080751A (en) * 1964-08-10 1967-08-23 Guy Olney Conner A fastener to be used for example in lieu of a stud or screw for holding parts together
US4445264A (en) * 1982-03-09 1984-05-01 Carl Banerian Tool for a method of forming dimples in sheet metal for recessing rivet heads

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2894274A1 (en) * 2005-12-02 2007-06-08 Burgaud Sas Soc Par Actions Si Shutter leaf stop, has lever mechanism including front sub-assembly that has box carrying handle for releasing stop mounted pivotally in box, and rear sub-assembly that has slide and another box with window receiving head of lock stop
US20140133928A1 (en) * 2012-11-12 2014-05-15 Scott A. BEYDLER Tool for Removing Broken Threaded Fasteners
US9132487B2 (en) * 2012-11-12 2015-09-15 Beydler CNC Tool for removing broken threaded fasteners
CN103302516A (en) * 2013-05-16 2013-09-18 淮北林光钻探机电工程有限公司 Fixing device for drill hole of internal-square plug-in drill rod female head
CN103302516B (en) * 2013-05-16 2016-11-16 淮北林光钻探机电工程有限公司 Interior four directions inserted joint pipe female fixing device for drilling

Also Published As

Publication number Publication date
GB9216819D0 (en) 1992-09-23

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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)