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GB1008029A - Drill bits - Google Patents

Drill bits

Info

Publication number
GB1008029A
GB1008029A GB3457163A GB3457163A GB1008029A GB 1008029 A GB1008029 A GB 1008029A GB 3457163 A GB3457163 A GB 3457163A GB 3457163 A GB3457163 A GB 3457163A GB 1008029 A GB1008029 A GB 1008029A
Authority
GB
United Kingdom
Prior art keywords
drill bits
shank
perkins
brazed
smith
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.)
Expired
Application number
GB3457163A
Inventor
John Mervyn Perkins
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.)
John M Perkins & Smith Ltd
Original Assignee
John M Perkins & Smith Ltd
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 John M Perkins & Smith Ltd filed Critical John M Perkins & Smith Ltd
Priority to GB3457163A priority Critical patent/GB1008029A/en
Publication of GB1008029A publication Critical patent/GB1008029A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/36—Percussion drill bits
    • E21B10/40—Percussion drill bits with leading portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/02—Twist drills
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
    • E21B10/445—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts percussion type, e.g. for masonry
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/58—Chisel-type inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2240/00—Details of connections of tools or workpieces
    • B23B2240/08—Brazed connections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/18—Configuration of the drill point
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/50—Drilling tools comprising cutting inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Drilling Tools (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

1,008,029. Drill bits. JOHN M. PERKINS & SMITH Ltd. June 23, 1964 [Sept. 2, 1963], No. 34571/63. Heading B3C. A masonry drill bit comprises a fluted shank 10 reduced at 11, and a tungsten carbide tip 12 brazed into a slot in the shank. The cutting point 19 is eccentric to the bit axis.
GB3457163A 1963-09-02 1963-09-02 Drill bits Expired GB1008029A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3457163A GB1008029A (en) 1963-09-02 1963-09-02 Drill bits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3457163A GB1008029A (en) 1963-09-02 1963-09-02 Drill bits

Publications (1)

Publication Number Publication Date
GB1008029A true GB1008029A (en) 1965-10-22

Family

ID=10367287

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3457163A Expired GB1008029A (en) 1963-09-02 1963-09-02 Drill bits

Country Status (1)

Country Link
GB (1) GB1008029A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2211532A1 (en) * 1972-03-10 1973-09-13 Hawera Probst Kg Hartmetall DRILLS, IN PARTICULAR STONE DRILLS
DE2216760A1 (en) * 1972-04-07 1973-10-18 Hawera Probst Kg Hartmetall ROCK DRILLS
US4412763A (en) 1981-01-21 1983-11-01 Metal Cutting Tools, Inc. Drill with single cutter
FR2840829A1 (en) * 2002-06-14 2003-12-19 Diager CUTTING INSERT FOR A DRILL, AND A DRILLING TOOL USING THE SAME
FR2971175A1 (en) * 2011-02-07 2012-08-10 Etienne Nizet Universal drill for boring e.g. construction materials in building field, has eccentric center point provided at end of drill and provided with active abrasive edge, and abrasive teeth provided in peripheral working areas of drill
EP2789418A1 (en) * 2013-04-10 2014-10-15 Alpen-Maykestag GmbH Cutting part for a drill
US10391591B2 (en) 2017-08-02 2019-08-27 80 Percent Arms Inc. Jig for firearm lower receiver manufacture
US10456846B1 (en) 2017-11-10 2019-10-29 80 Percent Arms Inc. Rotary tool for lower receiver manufacturing
US10718578B2 (en) 2016-10-05 2020-07-21 80 Percent Arms, Inc. Jig for manufacturing of firearm lower receiver
US10875135B2 (en) 2017-04-18 2020-12-29 80 Percent Arms Inc. Jig for firearm lower receiver manufacture
US11000930B1 (en) 2017-11-10 2021-05-11 Blackhawk Manufacturing Group Inc. Advanced jig for manufacturing of firearm lower receiver
CN116018225A (en) * 2020-08-28 2023-04-25 罗伯特·博世有限公司 Drill inserts and drill bits for drilling hard materials
US11796298B2 (en) 2013-11-11 2023-10-24 Blackhawk Manufacturing Group Inc. Jig for firearm lower receiver manufacture

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2211532A1 (en) * 1972-03-10 1973-09-13 Hawera Probst Kg Hartmetall DRILLS, IN PARTICULAR STONE DRILLS
DE2216760A1 (en) * 1972-04-07 1973-10-18 Hawera Probst Kg Hartmetall ROCK DRILLS
US4412763A (en) 1981-01-21 1983-11-01 Metal Cutting Tools, Inc. Drill with single cutter
FR2840829A1 (en) * 2002-06-14 2003-12-19 Diager CUTTING INSERT FOR A DRILL, AND A DRILLING TOOL USING THE SAME
EP1386684A1 (en) * 2002-06-14 2004-02-04 Diager Cutting insert for drill bit and drill bit using it
FR2971175A1 (en) * 2011-02-07 2012-08-10 Etienne Nizet Universal drill for boring e.g. construction materials in building field, has eccentric center point provided at end of drill and provided with active abrasive edge, and abrasive teeth provided in peripheral working areas of drill
EP2789418A1 (en) * 2013-04-10 2014-10-15 Alpen-Maykestag GmbH Cutting part for a drill
US11796298B2 (en) 2013-11-11 2023-10-24 Blackhawk Manufacturing Group Inc. Jig for firearm lower receiver manufacture
US11397063B2 (en) 2016-10-05 2022-07-26 Blackhawk Manufacturing Group Inc. Jig for manufacturing of firearm lower receiver
US12385702B2 (en) 2016-10-05 2025-08-12 Blackhawk Manufacturing Group, Inc. Jig for manufacturing of firearm lower receiver
US10718578B2 (en) 2016-10-05 2020-07-21 80 Percent Arms, Inc. Jig for manufacturing of firearm lower receiver
US10875135B2 (en) 2017-04-18 2020-12-29 80 Percent Arms Inc. Jig for firearm lower receiver manufacture
US11623313B2 (en) 2017-04-18 2023-04-11 Blackhawk Manufacturing Group Inc. Jig for firearm lower receiver manufacture
US12138727B2 (en) 2017-04-18 2024-11-12 Blackhawk Manufacturing Group Inc. Jig for firearm lower receiver manufacture
US10391591B2 (en) 2017-08-02 2019-08-27 80 Percent Arms Inc. Jig for firearm lower receiver manufacture
US11298759B2 (en) 2017-11-10 2022-04-12 Blackhawk Manufacturing Group Inc. Rotary tool for lower receiver manufacturing
US11000930B1 (en) 2017-11-10 2021-05-11 Blackhawk Manufacturing Group Inc. Advanced jig for manufacturing of firearm lower receiver
US11607765B2 (en) 2017-11-10 2023-03-21 Blackhawk Manufacturing Group Inc. Advanced jig for manufacturing of firearm lower receiver
US11794261B2 (en) 2017-11-10 2023-10-24 Blackhawk Manufacturing Group Inc. Rotary tool for lower receiver manufacturing
US10456846B1 (en) 2017-11-10 2019-10-29 80 Percent Arms Inc. Rotary tool for lower receiver manufacturing
CN116018225A (en) * 2020-08-28 2023-04-25 罗伯特·博世有限公司 Drill inserts and drill bits for drilling hard materials
EP4215303A4 (en) * 2020-08-28 2024-08-21 Robert Bosch GmbH Drill blade for drilling hard materials and drill bit

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