GB947835A - Improvements in or relating to drill bits - Google Patents

Improvements in or relating to drill bits

Info

Publication number
GB947835A
GB947835A GB23634/62A GB2363462A GB947835A GB 947835 A GB947835 A GB 947835A GB 23634/62 A GB23634/62 A GB 23634/62A GB 2363462 A GB2363462 A GB 2363462A GB 947835 A GB947835 A GB 947835A
Authority
GB
United Kingdom
Prior art keywords
projection
relating
drill bits
blade
heading
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
GB23634/62A
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.)
HUGH B WILLIAMS Manufacturing Co
Original Assignee
HUGH B WILLIAMS Manufacturing Co
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 HUGH B WILLIAMS Manufacturing Co filed Critical HUGH B WILLIAMS Manufacturing Co
Publication of GB947835A publication Critical patent/GB947835A/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
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
    • E21B10/627—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable with plural detachable cutting elements

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)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

947,835. Boring earth &c. H. B. WILLIAMS MANUFACTURING CO. June 19, 1962 [July 28, 1961], No. 23634/62. Heading E1F. In a drag bit having replaceable blades 19, each blade has a planar leading surface 36 with cutting fingers 38 and a projection 50 for deflecting cuttings upwardly and outwardly. Each projection engages a projection 52 on the rear surface of the preceding blade so that apertures 46, 48 for flushing fluid are formed. Specification 774,075 is referred to.
GB23634/62A 1961-07-28 1962-06-19 Improvements in or relating to drill bits Expired GB947835A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US127552A US3132708A (en) 1961-07-28 1961-07-28 Drill bit with deflector and interlock

Publications (1)

Publication Number Publication Date
GB947835A true GB947835A (en) 1964-01-29

Family

ID=22430698

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23634/62A Expired GB947835A (en) 1961-07-28 1962-06-19 Improvements in or relating to drill bits

Country Status (3)

Country Link
US (1) US3132708A (en)
ES (1) ES279026A1 (en)
GB (1) GB947835A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3326308A (en) * 1965-07-22 1967-06-20 John G Elstrand Well drilling bit
US5120427A (en) * 1988-05-23 1992-06-09 Uop High conversion high vaporization hydrocracking process
US6860344B2 (en) * 2001-06-25 2005-03-01 Kennametal Inc. Monolithic roof cutting bit insert

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2521791A (en) * 1945-09-21 1950-09-12 George G Harrington Replaceable blade bit
US2978049A (en) * 1960-01-04 1961-04-04 Sam C Skidmore Stabilizer for drill bit
US3075594A (en) * 1960-12-02 1963-01-29 Lewis F Howard Self-locking renewable wing drilling bit

Also Published As

Publication number Publication date
US3132708A (en) 1964-05-12
ES279026A1 (en) 1963-02-01

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