GB2397037A - Adaptor for small diameter twist drills - Google Patents

Adaptor for small diameter twist drills Download PDF

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Publication number
GB2397037A
GB2397037A GB0300242A GB0300242A GB2397037A GB 2397037 A GB2397037 A GB 2397037A GB 0300242 A GB0300242 A GB 0300242A GB 0300242 A GB0300242 A GB 0300242A GB 2397037 A GB2397037 A GB 2397037A
Authority
GB
United Kingdom
Prior art keywords
adaptor
jaws
diameter
small diameter
twist
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Withdrawn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
GB0300242A
Other versions
GB0300242D0 (en
Inventor
Dennis John Hughes
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 GB0300242A priority Critical patent/GB2397037A/en
Publication of GB0300242D0 publication Critical patent/GB0300242D0/en
Publication of GB2397037A publication Critical patent/GB2397037A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/12—Adapters for drills or chucks; Tapered sleeves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/011—Micro drills

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)

Abstract

A tubular adaptor 2 which enables twist drills 1 of a size smaller than that which can be held in the closed jaws of a drilling machine, such as the portable type, the adaptor 2 having a split along its length to enable the bore to close in when the jaws are closed to thus grip tightly the twist drill.

Description

ADAI'TO}, FOR SMALL DIAMETER TWIST DRILLS.
The invention relates to an adaptor for small diameter twi st drills of size usually smaller than i/16 inches or 1.5 m/m in diameter as tie normal the of drilling machine, such as the portable type enrich many handymen possess, have rounded inner ends of what is normally a 3 jaw clutch which 5. will only accommodate drills larger than 1|16 inches or 1.5 m/m in diameter.
The adaptor is a tube of aluminium or other suitable material of outside diameter at least or greater than 1/lG inches or 1.5 m/m which enables it to be carried in the jaws of a normal type of drilling machine, such as the portable type, which has a split along its length and fits snuggly 10. over the non-drilling end of the twist drill and tightening of the dri] 1 clutch closes slightly the inside diameter of the adaptor to grip tightly the twist drill to thus enable it to be used f or the drilling of small diameter holes in metal, plastic or wood,or any other suitable material.
A range of small diameter twist drills of sizes smaller than that which i5. can be accommodated by a normal type of drilling machine, down to about 0.015 inches or 0.38 m|m in diameter,each drill having an adaptor which fits snuggly over the non-drilling end of the drill.
The invention is exemplified by the sketches, figures l and 2 showing a typical adaptor fitted to a twist drill, whilst view 3 is an enlarged 20. view taken on plane ALA of end view 4. Referring to figure loiter 1 shows the twist drill in position with the adaptor item 2. _ 2-

Claims (1)

  1. CLAIMS.
    l/. A tubular adaptor which fits over the non-drilling end of a small diameter twist drill to enable it to be held in the jaws of a normal type of' drilling machine, such as the portable tyke, which can usually only accommodate drills above a certain diameter, the adaptor having a single split along its length to enable the inner diameter to close in when the drill jaws are closed and thus grip tightly the twist drill.
    2/. A tubular adaptor which has an outside diameter at least or greater than the aperture provided by the jaws of' the drilling machine when they are in the fully closed position.
    3/. A tubular adaptor which has an inside diameter which fits snuggly over the On-drilling end of the twist drill to be used.
    4/. A tubular adaptor for twist drills as herein described and with reference to sketches 1. 'I', 3 and 4 of the accompanying drawing.
GB0300242A 2003-01-07 2003-01-07 Adaptor for small diameter twist drills Withdrawn GB2397037A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0300242A GB2397037A (en) 2003-01-07 2003-01-07 Adaptor for small diameter twist drills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0300242A GB2397037A (en) 2003-01-07 2003-01-07 Adaptor for small diameter twist drills

Publications (2)

Publication Number Publication Date
GB0300242D0 GB0300242D0 (en) 2003-02-05
GB2397037A true GB2397037A (en) 2004-07-14

Family

ID=9950724

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0300242A Withdrawn GB2397037A (en) 2003-01-07 2003-01-07 Adaptor for small diameter twist drills

Country Status (1)

Country Link
GB (1) GB2397037A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1765362A (en) * 1928-09-04 1930-06-24 George W Berry Drill-operating holder
WO1992009392A1 (en) * 1990-11-26 1992-06-11 Walsh Joseph P Improved chuck for power tools
US5601295A (en) * 1995-12-29 1997-02-11 Baker; Arthur A. Tool holder system for industrial cutting tools

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1765362A (en) * 1928-09-04 1930-06-24 George W Berry Drill-operating holder
WO1992009392A1 (en) * 1990-11-26 1992-06-11 Walsh Joseph P Improved chuck for power tools
US5601295A (en) * 1995-12-29 1997-02-11 Baker; Arthur A. Tool holder system for industrial cutting tools

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
26th Edition Machinery's Handbook published 2000 pages 906-915 *

Also Published As

Publication number Publication date
GB0300242D0 (en) 2003-02-05

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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)