GB220828A - Improvements in a drill bit - Google Patents

Improvements in a drill bit

Info

Publication number
GB220828A
GB220828A GB23829/23A GB2382923A GB220828A GB 220828 A GB220828 A GB 220828A GB 23829/23 A GB23829/23 A GB 23829/23A GB 2382923 A GB2382923 A GB 2382923A GB 220828 A GB220828 A GB 220828A
Authority
GB
United Kingdom
Prior art keywords
ports
bit
rib
drill bit
drill
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
GB23829/23A
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.)
WALTON GARFIELD CHRISTIAN
Original Assignee
WALTON GARFIELD CHRISTIAN
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 WALTON GARFIELD CHRISTIAN filed Critical WALTON GARFIELD CHRISTIAN
Priority to GB23829/23A priority Critical patent/GB220828A/en
Publication of GB220828A publication Critical patent/GB220828A/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
    • E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail 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)
  • Earth Drilling (AREA)

Abstract

220,828. Christian, W. G. Sept. 24, 1923. Drills.-A drill-bit comprises a screwed shank 2 and a flat body 1 having a central cylindrical rib 4 containing a single water passage 5 which terminates in restricted ports 6 directed at opposite sides of the body towards the cutting lips 3. A non-return valve 7 may be used to prevent access of mud &c. to the ports, and the water pressure is sufficient to remove cuttings. When re-sharpening the bit the end of rib may be flattened and new ports provided therein.
GB23829/23A 1923-09-24 1923-09-24 Improvements in a drill bit Expired GB220828A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB23829/23A GB220828A (en) 1923-09-24 1923-09-24 Improvements in a drill bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB23829/23A GB220828A (en) 1923-09-24 1923-09-24 Improvements in a drill bit

Publications (1)

Publication Number Publication Date
GB220828A true GB220828A (en) 1924-08-28

Family

ID=10201981

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23829/23A Expired GB220828A (en) 1923-09-24 1923-09-24 Improvements in a drill bit

Country Status (1)

Country Link
GB (1) GB220828A (en)

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