GB190901732A - Improvements in Detachable Bits for Rock Drills or Borers. - Google Patents

Improvements in Detachable Bits for Rock Drills or Borers.

Info

Publication number
GB190901732A
GB190901732A GB190901732DA GB190901732A GB 190901732 A GB190901732 A GB 190901732A GB 190901732D A GB190901732D A GB 190901732DA GB 190901732 A GB190901732 A GB 190901732A
Authority
GB
United Kingdom
Prior art keywords
bit
borers
rock drills
slide
detachable
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
Inventor
John Henry Thomas
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
Application granted granted Critical
Publication of GB190901732A publication Critical patent/GB190901732A/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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches

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)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Earth Drilling (AREA)

Abstract

1732. Thomas, J. H. Jan. 25. Percussive drills; tools.-A detachable bit c for rock drills, stonemasons' chisels, &c. has a dovetailed tongue h with a rounded end, which tongue slides transversely into the end of the drill shank and, being slightly tapered, tightens itself in position. A slide b is then moved down to lock the bit in place, and a spring - pressed lever a locks the slide. A hole d is provided through which a drift may be inserted to remove the bit.
GB190901732D 1909-01-25 1909-01-25 Improvements in Detachable Bits for Rock Drills or Borers. Expired GB190901732A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190901732T 1909-01-25

Publications (1)

Publication Number Publication Date
GB190901732A true GB190901732A (en) 1909-12-23

Family

ID=32441932

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190901732D Expired GB190901732A (en) 1909-01-25 1909-01-25 Improvements in Detachable Bits for Rock Drills or Borers.

Country Status (1)

Country Link
GB (1) GB190901732A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0437084A2 (en) * 1990-01-10 1991-07-17 Well-Equip Limited A connector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0437084A2 (en) * 1990-01-10 1991-07-17 Well-Equip Limited A connector
EP0437084A3 (en) * 1990-01-10 1992-09-16 Well-Equip Limited A connector

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