GB191405302A - Improvements in and relating to Bits for Hollow Drills i.e., Core Drills. - Google Patents

Improvements in and relating to Bits for Hollow Drills i.e., Core Drills.

Info

Publication number
GB191405302A
GB191405302A GB191405302DA GB191405302A GB 191405302 A GB191405302 A GB 191405302A GB 191405302D A GB191405302D A GB 191405302DA GB 191405302 A GB191405302 A GB 191405302A
Authority
GB
United Kingdom
Prior art keywords
drills
bits
relating
core
hollow
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
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.)
NL MIJ TOT HET VERRICHTEN VAN
Original Assignee
NL MIJ TOT HET VERRICHTEN VAN
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 NL MIJ TOT HET VERRICHTEN VAN filed Critical NL MIJ TOT HET VERRICHTEN VAN
Application granted granted Critical
Publication of GB191405302A publication Critical patent/GB191405302A/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
    • E21B10/02—Core bits

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)

Abstract

5302. Nederlandsche Maatschappij tot het verrichten van Mijnbouwkundige Werken. March 6, 1913, [Convention date]. Bore-hole apparatus.-A drill head for core drills has four or more double dovetail grooves 2 receiving interchangeable cutting-teeth or diamondcarriers 3 which are held in position by a ring 4 provided with a conical bore and carrying a coregripping device 5.
GB191405302D 1913-03-06 1914-03-02 Improvements in and relating to Bits for Hollow Drills i.e., Core Drills. Expired GB191405302A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL191405302X 1913-03-06

Publications (1)

Publication Number Publication Date
GB191405302A true GB191405302A (en) 1914-12-10

Family

ID=32589189

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191405302D Expired GB191405302A (en) 1913-03-06 1914-03-02 Improvements in and relating to Bits for Hollow Drills i.e., Core Drills.

Country Status (1)

Country Link
GB (1) GB191405302A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2853904A (en) * 1955-11-07 1958-09-30 Bruce A Mackey Core cutter
CN106050149A (en) * 2016-07-27 2016-10-26 安徽省地质矿产勘查局313地质队 Spiral tooth step bottom spraying type diamond drill bit
EP3501771A1 (en) * 2017-12-21 2019-06-26 HILTI Aktiengesellschaft Cutting section for a core bit
EP3501770A1 (en) * 2017-12-21 2019-06-26 HILTI Aktiengesellschaft Cutting section for a core bit
EP3501705A1 (en) * 2017-12-21 2019-06-26 HILTI Aktiengesellschaft Method for producing a cutting section for a core bit

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2853904A (en) * 1955-11-07 1958-09-30 Bruce A Mackey Core cutter
CN106050149A (en) * 2016-07-27 2016-10-26 安徽省地质矿产勘查局313地质队 Spiral tooth step bottom spraying type diamond drill bit
EP3501771A1 (en) * 2017-12-21 2019-06-26 HILTI Aktiengesellschaft Cutting section for a core bit
EP3501770A1 (en) * 2017-12-21 2019-06-26 HILTI Aktiengesellschaft Cutting section for a core bit
EP3501705A1 (en) * 2017-12-21 2019-06-26 HILTI Aktiengesellschaft Method for producing a cutting section for a core bit
WO2019121137A1 (en) * 2017-12-21 2019-06-27 Hilti Aktiengesellschaft Method for producing a cutting section for a core bit
WO2019121141A1 (en) * 2017-12-21 2019-06-27 Hilti Aktiengesellschaft Cutting section for a drill bit
WO2019121479A1 (en) * 2017-12-21 2019-06-27 Hilti Aktiengesellschaft Cutting section for a drill bit
US11504881B2 (en) 2017-12-21 2022-11-22 Hilti Aktiengesellschaft Cutting section for a drill bit

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