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GB2275632A - Thread-cutting drill - Google Patents

Thread-cutting drillDownload PDF

Info

Publication number
GB2275632A
GB2275632AGB9302683AGB9302683AGB2275632AGB 2275632 AGB2275632 AGB 2275632AGB 9302683 AGB9302683 AGB 9302683AGB 9302683 AGB9302683 AGB 9302683AGB 2275632 AGB2275632 AGB 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 IndividualfiledCriticalIndividual
Priority to GB9302683ApriorityCriticalpatent/GB2275632B/en
Publication of GB9302683D0publicationCriticalpatent/GB9302683D0/en
Publication of GB2275632ApublicationCriticalpatent/GB2275632A/en
Application grantedgrantedCritical
Publication of GB2275632BpublicationCriticalpatent/GB2275632B/en
Anticipated expirationlegal-statusCritical
Expired - Fee Relatedlegal-statusCriticalCurrent

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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

DISCRIPTIONThe 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)

GB9302683A1993-02-111993-02-11Thread-drillExpired - Fee RelatedGB2275632B (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
GB9302683AGB2275632B (en)1993-02-111993-02-11Thread-drill

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
GB9302683AGB2275632B (en)1993-02-111993-02-11Thread-drill

Publications (3)

Publication NumberPublication Date
GB9302683D0 GB9302683D0 (en)1993-03-24
GB2275632Atrue GB2275632A (en)1994-09-07
GB2275632B GB2275632B (en)1995-09-27

Family

ID=10730228

Family Applications (1)

Application NumberTitlePriority DateFiling Date
GB9302683AExpired - Fee RelatedGB2275632B (en)1993-02-111993-02-11Thread-drill

Country Status (1)

CountryLink
GB (1)GB2275632B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
WO2010019506A1 (en)*2008-08-102010-02-18Saferack, LlcFall restraint equipment component and method for manufacturing the same
ITLT20090005A1 (en)*2009-09-292011-03-30Marco Comuzzi DRILLING DRILL BITS
US7950095B2 (en)2007-12-092011-05-31Safe Rack LlcGangway and method for manufacturing same
US11591802B1 (en)2020-02-282023-02-28Material Control, Inc.Modular access system

Citations (5)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
GB588599A (en)*1945-11-201947-05-28George Edward NevardImprovements in tools for forming tapped holes in workpieces
GB696833A (en)*1950-11-171953-09-09Reginald BastienImprovements in or relating to engineers' taps and drills
GB943897A (en)*1959-09-021963-12-11John Harris Tools LtdImprovements in screw thread taps
GB2067440A (en)*1979-12-311981-07-30Huang Tien TsaiCombined screw tap and drill
EP0278930A2 (en)*1987-02-101988-08-17Sandvik AktiebolagDrilling and threading tool

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
GB588599A (en)*1945-11-201947-05-28George Edward NevardImprovements in tools for forming tapped holes in workpieces
GB696833A (en)*1950-11-171953-09-09Reginald BastienImprovements in or relating to engineers' taps and drills
GB943897A (en)*1959-09-021963-12-11John Harris Tools LtdImprovements in screw thread taps
GB2067440A (en)*1979-12-311981-07-30Huang Tien TsaiCombined screw tap and drill
EP0278930A2 (en)*1987-02-101988-08-17Sandvik AktiebolagDrilling and threading tool

Cited By (8)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US7950095B2 (en)2007-12-092011-05-31Safe Rack LlcGangway and method for manufacturing same
US8869335B2 (en)2007-12-092014-10-28Safe Rack LlcGangway and method for manufacturing same
WO2010019506A1 (en)*2008-08-102010-02-18Saferack, LlcFall restraint equipment component and method for manufacturing the same
US8261393B2 (en)2008-08-102012-09-11Saferack, LlcFall restraint equipment component and method for manufacturing the same
US8341821B2 (en)2008-08-102013-01-01Saferack, LlcFall restraint equipment components and method for manufacturing the same
US8782838B2 (en)2008-08-102014-07-22Safe Rack, LlcFall restraint equipment component and method for manufacturing the same
ITLT20090005A1 (en)*2009-09-292011-03-30Marco Comuzzi DRILLING DRILL BITS
US11591802B1 (en)2020-02-282023-02-28Material Control, Inc.Modular access system

Also Published As

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

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Legal Events

DateCodeTitleDescription
PCNPPatent ceased through non-payment of renewal fee

Effective date:19970211
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