GB452694A - Improvements in and relating to drills - Google Patents

Improvements in and relating to drills

Info

Publication number
GB452694A
GB452694A GB34151/35A GB3415135A GB452694A GB 452694 A GB452694 A GB 452694A GB 34151/35 A GB34151/35 A GB 34151/35A GB 3415135 A GB3415135 A GB 3415135A GB 452694 A GB452694 A GB 452694A
Authority
GB
United Kingdom
Prior art keywords
shank
lugs
cutter
drills
relating
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
GB34151/35A
Other languages
English (en)
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
Publication of GB452694A publication Critical patent/GB452694A/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
    • 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
    • E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Drilling Tools (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Emergency Lowering Means (AREA)
  • Percussive Tools And Related Accessories (AREA)
GB34151/35A 1935-07-17 1935-12-10 Improvements in and relating to drills Expired GB452694A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA452694X 1935-07-17
US33350A US2030530A (en) 1935-07-17 1935-07-26 Drill

Publications (1)

Publication Number Publication Date
GB452694A true GB452694A (en) 1936-08-27

Family

ID=21869896

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34151/35A Expired GB452694A (en) 1935-07-17 1935-12-10 Improvements in and relating to drills

Country Status (3)

Country Link
US (1) US2030530A (fr)
FR (1) FR799510A (fr)
GB (1) GB452694A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4190128A (en) * 1978-12-21 1980-02-26 Fansteel Inc. Roof drill bit with hexagonal body portion

Also Published As

Publication number Publication date
FR799510A (fr) 1936-06-15
US2030530A (en) 1936-02-11

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