FR855206A - Percussion drill bit for drilling rocks or other bodies - Google Patents

Percussion drill bit for drilling rocks or other bodies

Info

Publication number
FR855206A
FR855206A FR855206DA FR855206A FR 855206 A FR855206 A FR 855206A FR 855206D A FR855206D A FR 855206DA FR 855206 A FR855206 A FR 855206A
Authority
FR
France
Prior art keywords
bodies
drill bit
percussion drill
drilling rocks
rocks
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)
Inventor
Erhard Bertl
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 filed Critical
Application granted granted Critical
Publication of FR855206A publication Critical patent/FR855206A/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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/58—Chisel-type inserts

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)
FR855206D 1939-05-24 1939-05-24 Percussion drill bit for drilling rocks or other bodies Expired FR855206A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR855206T 1939-05-24

Publications (1)

Publication Number Publication Date
FR855206A true FR855206A (en) 1940-05-06

Family

ID=9328147

Family Applications (1)

Application Number Title Priority Date Filing Date
FR855206D Expired FR855206A (en) 1939-05-24 1939-05-24 Percussion drill bit for drilling rocks or other bodies

Country Status (1)

Country Link
FR (1) FR855206A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE912202C (en) * 1941-06-15 1954-05-28 Boehler & Co Ag Geb Rock drill or drill bit with carbide cutting edges
DE918741C (en) * 1949-09-03 1954-10-04 Boehler & Co Ag Geb Rock drill with single or multiple cutting edges

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE912202C (en) * 1941-06-15 1954-05-28 Boehler & Co Ag Geb Rock drill or drill bit with carbide cutting edges
DE918741C (en) * 1949-09-03 1954-10-04 Boehler & Co Ag Geb Rock drill with single or multiple cutting edges

Similar Documents

Publication Publication Date Title
FR855206A (en) Percussion drill bit for drilling rocks or other bodies
FR547312A (en) Bits or drills for drilling rock and other hard substances
FR870106A (en) Drill bit for drilling hard rock
CA382105A (en) Detachable bit rock drill
CA384139A (en) Rock drill bit
CA384140A (en) Rock drill bit
FR832505A (en) Hammer Drill Bucket
FR822255A (en) Improvements to mechanisms for sinking or drilling wells
FR859695A (en) Rock Drill Bit Improvements
CA355055A (en) Stone boring tool or rock drill
CA359138A (en) Rock drill bit
CA383560A (en) Drill bit
FR971909A (en) Improvements to rock drilling tools
CA355443A (en) Rotary earth boring drill
CA352840A (en) Rock drill bit
CA380769A (en) Detachable drill bit
FR795066A (en) Improvements to drill bits
CA383458A (en) Drilling mud
CA383459A (en) Drilling mud
FR799510A (en) Removable bit drill
CA371190A (en) Detachable bit rock drill
CA373163A (en) Replaceable rock drill bit
AU113214B2 (en) Improvements in or relating to rock drills having detachable bits
FR751794A (en) Improvement of drill bits or similar tools
AU108907B2 (en) Improvements in shank formations of percussive drilling tools