GB736983A - Improvements in rotary drills for boring earth, rock, coal and like material - Google Patents

Improvements in rotary drills for boring earth, rock, coal and like material

Info

Publication number
GB736983A
GB736983A GB27305/52A GB2730552A GB736983A GB 736983 A GB736983 A GB 736983A GB 27305/52 A GB27305/52 A GB 27305/52A GB 2730552 A GB2730552 A GB 2730552A GB 736983 A GB736983 A GB 736983A
Authority
GB
United Kingdom
Prior art keywords
rock
coal
rotary drills
boring earth
oct
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
GB27305/52A
Inventor
John Raymond Healey
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.)
Tungsten Carbide Developments Ltd
Original Assignee
Tungsten Carbide Developments 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 Tungsten Carbide Developments Ltd filed Critical Tungsten Carbide Developments Ltd
Priority to GB27305/52A priority Critical patent/GB736983A/en
Publication of GB736983A publication Critical patent/GB736983A/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)
  • Earth Drilling (AREA)

Abstract

736,983. Drills. TUNGSTEN CARBIDE DEVELOPMENTS, Ltd. Oct. 29, 1953 [Oct. 30, 1952], No. 27305/52. Class 83 (3). A rotary rock &c. drill comprises a bit 11 having a hollow shank 12 inserted in the end of a hollow rod 10 having shoulders engaging the bit to rotate it, and a sealing member 18 engaging a groove in the shank 12 below a recess for a securing pin 14. The sealing member is of india rubber and is expanded against the inside of the rod 10 by the force of the flushing water.
GB27305/52A 1952-10-30 1952-10-30 Improvements in rotary drills for boring earth, rock, coal and like material Expired GB736983A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB27305/52A GB736983A (en) 1952-10-30 1952-10-30 Improvements in rotary drills for boring earth, rock, coal and like material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB27305/52A GB736983A (en) 1952-10-30 1952-10-30 Improvements in rotary drills for boring earth, rock, coal and like material

Publications (1)

Publication Number Publication Date
GB736983A true GB736983A (en) 1955-09-14

Family

ID=10257412

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27305/52A Expired GB736983A (en) 1952-10-30 1952-10-30 Improvements in rotary drills for boring earth, rock, coal and like material

Country Status (1)

Country Link
GB (1) GB736983A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4550791A (en) * 1983-10-03 1985-11-05 Kennametal Inc. Two-prong rotary bit, especially for use with roof drills, and insert therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4550791A (en) * 1983-10-03 1985-11-05 Kennametal Inc. Two-prong rotary bit, especially for use with roof drills, and insert therefor

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