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GB2275632A - Thread-cutting drill - Google Patents

Thread-cutting drill Download PDF

Info

Publication number
GB2275632A
GB2275632A GB9302683A GB9302683A GB2275632A GB 2275632 A GB2275632 A GB 2275632A GB 9302683 A GB9302683 A GB 9302683A GB 9302683 A GB9302683 A GB 9302683A GB 2275632 A GB2275632 A GB 2275632A
Authority
GB
United Kingdom
Prior art keywords
thread
drill
cutting portion
thread cutting
reaching
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.)
Granted
Application number
GB9302683A
Other versions
GB2275632B (en
GB9302683D0 (en
Inventor
Gordon Wall
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 GB9302683A priority Critical patent/GB2275632B/en
Publication of GB9302683D0 publication Critical patent/GB9302683D0/en
Publication of GB2275632A publication Critical patent/GB2275632A/en
Application granted granted Critical
Publication of GB2275632B publication Critical patent/GB2275632B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G5/00—Thread-cutting tools; Die-heads
    • B23G5/20—Thread-cutting tools; Die-heads combined with other tools, e.g. drills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G2200/00—Details of threading tools
    • B23G2200/14—Multifunctional threading tools
    • B23G2200/143—Tools comprising means for drilling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G2200/00—Details of threading tools
    • B23G2200/14—Multifunctional threading tools
    • B23G2200/146—Tools comprising a tap

Landscapes

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

Abstract

The drill has a drilling portion followed by a thread cutting portion. The drill has extra flutes on the outer diameter to dispose of cuttings from the thread cutting operation. The flutes narrow upon reaching the thread cutting portion and the drill diameter reduces before the thread cutting portion to allow smooth engagement. <IMAGE>

Description

DISCRIPTION The thread drill is an invention that enables a hole and a thread to be cut in one operation, it consists of a twistdrill with a thread cutting portion combined. The twistdrill would drill through the material as in the normal way, after this operation is achieved the thread cutting portion will come into operation this then will cut a thread in the conventional way. Prior to the thread cutting portion the diameter of the drill will reduce to allow smooth engagement of the thread cutting portion.
Upon reaching the thread cutting portion the fluteing narrows. An extra two flutes are ground down the full length of the thread-drill on the outer diameter these would serve to expel the cuttings from the thread cutting portion, the thread cutting portion would have four sets of teeth around its diameter.

Claims (6)

1. A thread drill comprising of a drill plus a thread cutting portion combined with additional fluting for the disposal of cuttings from the thread cutting operation.
2. A thread drill as claimed in Claim 1 with additional flueting.
3. A thread drill as claimed in Claim 1 or Claim 2 wherein the flueting narrows upon reaching the thread cutting portion.
4. A thread drill as claimed in Claim 2 or Claim 3 wherein four sets of cutting teeth are equally spaced around the thread cutting portion.
5. A thread drill as claimed in Claim 4 wherein the diameter of the drill reduces upon reaching the thread cutting portion.
6. A thread drill is substantially as described herein with reference to Figures 1 to 5 of the accompaning drawing.
GB9302683A 1993-02-11 1993-02-11 Thread-drill Expired - Fee Related GB2275632B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9302683A GB2275632B (en) 1993-02-11 1993-02-11 Thread-drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9302683A GB2275632B (en) 1993-02-11 1993-02-11 Thread-drill

Publications (3)

Publication Number Publication Date
GB9302683D0 GB9302683D0 (en) 1993-03-24
GB2275632A true GB2275632A (en) 1994-09-07
GB2275632B GB2275632B (en) 1995-09-27

Family

ID=10730228

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9302683A Expired - Fee Related GB2275632B (en) 1993-02-11 1993-02-11 Thread-drill

Country Status (1)

Country Link
GB (1) GB2275632B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010019506A1 (en) * 2008-08-10 2010-02-18 Saferack, Llc Fall restraint equipment component and method for manufacturing the same
ITLT20090005A1 (en) * 2009-09-29 2011-03-30 Marco Comuzzi DRILLING DRILL BITS
US7950095B2 (en) 2007-12-09 2011-05-31 Safe Rack Llc Gangway and method for manufacturing same
US11591802B1 (en) 2020-02-28 2023-02-28 Material Control, Inc. Modular access system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB588599A (en) * 1945-11-20 1947-05-28 George Edward Nevard Improvements in tools for forming tapped holes in workpieces
GB696833A (en) * 1950-11-17 1953-09-09 Reginald Bastien Improvements in or relating to engineers' taps and drills
GB943897A (en) * 1959-09-02 1963-12-11 John Harris Tools Ltd Improvements in screw thread taps
GB2067440A (en) * 1979-12-31 1981-07-30 Huang Tien Tsai Combined screw tap and drill
EP0278930A2 (en) * 1987-02-10 1988-08-17 Sandvik Aktiebolag Drilling and threading tool

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB588599A (en) * 1945-11-20 1947-05-28 George Edward Nevard Improvements in tools for forming tapped holes in workpieces
GB696833A (en) * 1950-11-17 1953-09-09 Reginald Bastien Improvements in or relating to engineers' taps and drills
GB943897A (en) * 1959-09-02 1963-12-11 John Harris Tools Ltd Improvements in screw thread taps
GB2067440A (en) * 1979-12-31 1981-07-30 Huang Tien Tsai Combined screw tap and drill
EP0278930A2 (en) * 1987-02-10 1988-08-17 Sandvik Aktiebolag Drilling and threading tool

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7950095B2 (en) 2007-12-09 2011-05-31 Safe Rack Llc Gangway and method for manufacturing same
US8869335B2 (en) 2007-12-09 2014-10-28 Safe Rack Llc Gangway and method for manufacturing same
WO2010019506A1 (en) * 2008-08-10 2010-02-18 Saferack, Llc Fall restraint equipment component and method for manufacturing the same
US8261393B2 (en) 2008-08-10 2012-09-11 Saferack, Llc Fall restraint equipment component and method for manufacturing the same
US8341821B2 (en) 2008-08-10 2013-01-01 Saferack, Llc Fall restraint equipment components and method for manufacturing the same
US8782838B2 (en) 2008-08-10 2014-07-22 Safe Rack, Llc Fall restraint equipment component and method for manufacturing the same
ITLT20090005A1 (en) * 2009-09-29 2011-03-30 Marco Comuzzi DRILLING DRILL BITS
US11591802B1 (en) 2020-02-28 2023-02-28 Material Control, Inc. Modular access system

Also Published As

Publication number Publication date
GB2275632B (en) 1995-09-27
GB9302683D0 (en) 1993-03-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970211