GB932205A - Improvements in or relating to earth and rock drilling bits - Google Patents

Improvements in or relating to earth and rock drilling bits

Info

Publication number
GB932205A
GB932205A GB2943159A GB2943159A GB932205A GB 932205 A GB932205 A GB 932205A GB 2943159 A GB2943159 A GB 2943159A GB 2943159 A GB2943159 A GB 2943159A GB 932205 A GB932205 A GB 932205A
Authority
GB
United Kingdom
Prior art keywords
sleeve
shank
pin
arms
connection
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
GB2943159A
Inventor
Bruce Percival Warburton
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.)
Padley and Venables Ltd
Original Assignee
Padley and Venables 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
Priority to BE603562D priority Critical patent/BE603562A/xx
Priority to NL263085D priority patent/NL263085A/xx
Priority to GB12380/56A priority patent/GB832205A/en
Application filed by Padley and Venables Ltd filed Critical Padley and Venables Ltd
Priority to GB2943159A priority patent/GB932205A/en
Priority to US46807A priority patent/US3186501A/en
Priority to DEP26867A priority patent/DE1188529B/en
Priority to FR859944A priority patent/FR1287225A/en
Publication of GB932205A publication Critical patent/GB932205A/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
    • E21B10/08—Roller bits
    • E21B10/20—Roller bits characterised by detachable or adjustable parts, e.g. legs or axles

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

932,205. Boring earth &c. PADLEY & VENABLES Ltd. Aug. 15, 1960 [Aug. 28, 1959; Oct. 5, 1959], Nos. 29431/59 and 33656/59. Class 85. A drill head comprises a hollow shank 10 adapted at one end for connection to a drill string, an enlargement 12 at the other end of the shank, arms 16 having recesses co-operating with the enlargement, a sleeve 32 tightly engaging the arms, and a driving connection between the sleeve and the shank. The arms carry cutters 16 or rollers (not shown), and have a driving connection comprising keyway and keys 34, 36. Splines 48 on the sleeve-engaging splines 46 on the shank to form the driving connection between sleeve and shank. The pin 44 of a tool joint is screwed on the shank to bear on the sleeve which may have reamer stabilizers 54. In a modification (Fig. 1, not shown), the sleeve and pin are attached to the shank by screw-threads of opposite hand, and a second sleeve having a splined connection with the shank is interposed between the pin and the first sleeve.
GB2943159A 1959-08-28 1959-08-28 Improvements in or relating to earth and rock drilling bits Expired GB932205A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BE603562D BE603562A (en) 1959-08-28
NL263085D NL263085A (en) 1959-08-28
GB12380/56A GB832205A (en) 1959-08-28 1956-04-23 Improvements in or relating to the polymerisation of mono-olefins
GB2943159A GB932205A (en) 1959-08-28 1959-08-28 Improvements in or relating to earth and rock drilling bits
US46807A US3186501A (en) 1959-08-28 1960-08-01 Rock-drilling bits
DEP26867A DE1188529B (en) 1959-08-28 1961-03-30 Drill bits
FR859944A FR1287225A (en) 1959-08-28 1961-04-26 Improvements to drill bits for well drilling and similar uses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2943159A GB932205A (en) 1959-08-28 1959-08-28 Improvements in or relating to earth and rock drilling bits

Publications (1)

Publication Number Publication Date
GB932205A true GB932205A (en) 1963-07-24

Family

ID=10291446

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2943159A Expired GB932205A (en) 1959-08-28 1959-08-28 Improvements in or relating to earth and rock drilling bits

Country Status (1)

Country Link
GB (1) GB932205A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2316432A1 (en) * 1975-06-20 1977-01-28 Skf Ind Trading & Dev ROLLER TREPAN FOR DRILLING IN EARTH CRUST

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2316432A1 (en) * 1975-06-20 1977-01-28 Skf Ind Trading & Dev ROLLER TREPAN FOR DRILLING IN EARTH CRUST

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