GB337617A - Improvements in or relating to rock drills - Google Patents

Improvements in or relating to rock drills

Info

Publication number
GB337617A
GB337617A GB35065/29A GB3506529A GB337617A GB 337617 A GB337617 A GB 337617A GB 35065/29 A GB35065/29 A GB 35065/29A GB 3506529 A GB3506529 A GB 3506529A GB 337617 A GB337617 A GB 337617A
Authority
GB
United Kingdom
Prior art keywords
bit
relating
rock drills
metal
shank
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
GB35065/29A
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
Priority to GB35065/29A priority Critical patent/GB337617A/en
Publication of GB337617A publication Critical patent/GB337617A/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

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

337,617. Bedford, R. A. Nov. 16, 1929. Rock drills. - The bit 2 and shank 3 of a rock drill are joined by a shock-absorbing thimble-shaped liner 6b, fitting between a tapered socket 4 in the bit and a tapered spigot 5 on the shank. The liner, which is of softer metal than either of the joined parts, may be formed by pouring molten metal between the separated surfaces thereof, or by pressing a disc of metal into the bit socket.
GB35065/29A 1929-11-16 1929-11-16 Improvements in or relating to rock drills Expired GB337617A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB35065/29A GB337617A (en) 1929-11-16 1929-11-16 Improvements in or relating to rock drills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB35065/29A GB337617A (en) 1929-11-16 1929-11-16 Improvements in or relating to rock drills

Publications (1)

Publication Number Publication Date
GB337617A true GB337617A (en) 1930-11-06

Family

ID=10373374

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35065/29A Expired GB337617A (en) 1929-11-16 1929-11-16 Improvements in or relating to rock drills

Country Status (1)

Country Link
GB (1) GB337617A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2888282A (en) * 1955-11-16 1959-05-26 Naimer Hubert Laurenz Adjustable rotary connection between a prismatic shaft and a coaxial connecting member
US3012089A (en) * 1958-12-15 1961-12-05 Frederick George Ridgers Grounding rod

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2888282A (en) * 1955-11-16 1959-05-26 Naimer Hubert Laurenz Adjustable rotary connection between a prismatic shaft and a coaxial connecting member
US3012089A (en) * 1958-12-15 1961-12-05 Frederick George Ridgers Grounding rod

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