GB200303A - Improvements in percussive drills - Google Patents

Improvements in percussive drills

Info

Publication number
GB200303A
GB200303A GB1453822A GB1453822A GB200303A GB 200303 A GB200303 A GB 200303A GB 1453822 A GB1453822 A GB 1453822A GB 1453822 A GB1453822 A GB 1453822A GB 200303 A GB200303 A GB 200303A
Authority
GB
United Kingdom
Prior art keywords
sleeve
bit
percussive
ribs
steel
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
GB1453822A
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 GB1453822A priority Critical patent/GB200303A/en
Publication of GB200303A publication Critical patent/GB200303A/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
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
    • 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
    • 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
    • E21B17/042—Threaded
    • E21B17/0426—Threaded with a threaded cylindrical portion, e.g. for percussion rods

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

200,303. Thurston, F. W. May 23, 1922. Percussive drills. - A percussive drill has a shock absorbing part, such as a sleeve 12 of chrome nickel steel, between the bit and the shank, which are constructed respectively of wear-resisting material such as chrome vanadium steel and anti-fatigue material such as vanadium steel. The sleeve is made with ribs 66, the grooves between the ribs acting as conduits for debris. The screw threads of the different parts aro made truncated for ease of disconnecting. The sleeve 12 may be welded or otherwise joined to either of the other parts or may be made as shown in Fig. 5. The bit has one or more cutting edges.
GB1453822A 1922-05-23 1922-05-23 Improvements in percussive drills Expired GB200303A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1453822A GB200303A (en) 1922-05-23 1922-05-23 Improvements in percussive drills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1453822A GB200303A (en) 1922-05-23 1922-05-23 Improvements in percussive drills

Publications (1)

Publication Number Publication Date
GB200303A true GB200303A (en) 1923-07-12

Family

ID=10042997

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1453822A Expired GB200303A (en) 1922-05-23 1922-05-23 Improvements in percussive drills

Country Status (1)

Country Link
GB (1) GB200303A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990004082A2 (en) * 1988-10-05 1990-04-19 Sekisui Kagaku Kogyo Kabushiki Kaisha An underground pipe for a thrust boring method and a connecting construction of the underground pipe for the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990004082A2 (en) * 1988-10-05 1990-04-19 Sekisui Kagaku Kogyo Kabushiki Kaisha An underground pipe for a thrust boring method and a connecting construction of the underground pipe for the same
WO1990004082A3 (en) * 1988-10-05 1990-06-14 Seikisui Chemical Co Ltd An underground pipe for a thrust boring method and a connecting construction of the underground pipe for the same
US5104263A (en) * 1988-10-05 1992-04-14 Sekisui Kagaku Kogyo Kabushiki Kaisha Underground pipe for a thrust boring method and a connecting construction of the underground pipe for the same

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