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

Similar Documents

Publication Publication Date Title
GB948107A (en) Spade drill blade
GB1205060A (en) Improved drill
GB1276249A (en) Improvements in or relating to percussion drill bits
GB1325052A (en) Rotary drill bit assembly
GB1105058A (en) Improvements in or relating to rotatable drilling tools
GB1419624A (en) Drills for use in drilling and the like operations
GB1071418A (en) Improvements in rock-drilling tools
GB1146403A (en) Improvements in drill bits
GB1008029A (en) Drill bits
GB947835A (en) Improvements in or relating to drill bits
GB1433556A (en) Step auger and rock bit combination
GB1010885A (en) Auger tooth with side edge blade
GB1069264A (en) Improvements in or relating to percussive drill bits
GB947440A (en) Drag bit blade
GB1466036A (en) Rotary earth-cutting tools
GB950305A (en) Improvements in rotary drag bits
GB1239074A (en)
US2767958A (en) Rock drill bit
GB1014433A (en) Apparatus for earth boring
GB709740A (en) Tipped chisels, drills and like tools
GB1086535A (en) Improvements in or relating to the drilling of deep boreholes in the earth
GB1073250A (en) Cutter head for a soil sample cutter
GB897516A (en) Drill bits for earth formations
GB1188097A (en) Improvements in Pilot Bits for Earth Boring Augers
GB1113037A (en) Improvements in or relating to roller bits for boring earth and rock