FR870106A - Drill bit for drilling hard rock - Google Patents

Drill bit for drilling hard rock

Info

Publication number
FR870106A
FR870106A FR870106DA FR870106A FR 870106 A FR870106 A FR 870106A FR 870106D A FR870106D A FR 870106DA FR 870106 A FR870106 A FR 870106A
Authority
FR
France
Prior art keywords
drill bit
hard rock
drilling hard
drilling
rock
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
Other languages
French (fr)
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.)
MEUTSCH
Original Assignee
MEUTSCH
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 MEUTSCH filed Critical MEUTSCH
Application granted granted Critical
Publication of FR870106A publication Critical patent/FR870106A/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
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/042—Threaded

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)
FR870106D 1940-03-14 1941-02-17 Drill bit for drilling hard rock Expired FR870106A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEM4560D DE931524C (en) 1940-03-14 1940-03-14 Hammer nipple for rock percussion drill
DEM147288D DE758462C (en) 1940-03-14 1940-03-14 Rock percussion drill

Publications (1)

Publication Number Publication Date
FR870106A true FR870106A (en) 1942-03-03

Family

ID=7336215

Family Applications (1)

Application Number Title Priority Date Filing Date
FR870106D Expired FR870106A (en) 1940-03-14 1941-02-17 Drill bit for drilling hard rock

Country Status (2)

Country Link
DE (2) DE758462C (en)
FR (1) FR870106A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4167141A (en) * 1977-05-11 1979-09-11 Haywood Glen H Percussive tool with replaceable work bit

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1072938B (en) * 1960-01-14 Canadian Ingersoll - Rand Company Limited, Montreal, Quebec (Kanada) Friction connection piece for a hammering boring bar with two conical plug-in openings
DE1002714B (en) * 1955-05-12 1957-02-21 Hemscheidt Maschf Hermann Rotary percussion drill bit with cross chisel cutting edge made of hard metal with cutting edges offset to one another
AU2008235045B2 (en) 2007-04-05 2014-11-06 Tracto-Technik Gmbh & Co. Kg Rod coupling comprising a sacrificial element

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE361953C (en) * 1922-11-02 August Brandenburger Rock rotary and pusher drill bits
US904692A (en) * 1907-12-28 1908-11-24 Cleveland Pneumatic Tool Co Stone-working tool.
GB191310566A (en) * 1913-05-05 1914-04-30 William Henry Wakfer Improvements in and relating to Percussive Rock Drills, Bits and like Appliances.
US1477855A (en) * 1922-04-18 1923-12-18 Fred W Thurston Drill
DE391976C (en) * 1922-11-22 1924-03-19 Heinrich Kessner Drill rods for pushing and rotating drilling
DE539083C (en) * 1927-02-09 1931-11-20 Fagersta Bruks Ab Process for the production of hollow drilling steels
DE512954C (en) * 1930-04-03 1930-11-20 Hans Walser Rock drill
DE649869C (en) * 1934-07-15 1937-09-09 Flottmann Akt Ges Rock hammer drill with flushing head
US2042088A (en) * 1934-09-26 1936-05-26 Bedford Reginald Asline Drill shaft and bit adapted to be used with percussive drills
DE672237C (en) * 1936-05-15 1939-02-27 Meutsch Voigtlaender & Co Vorm Rock percussion drill

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4167141A (en) * 1977-05-11 1979-09-11 Haywood Glen H Percussive tool with replaceable work bit

Also Published As

Publication number Publication date
DE758462C (en) 1952-06-03
DE931524C (en) 1955-08-22

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