FR863775A - Perfectionnements aux avanceurs automatiques pour marteaux perforateurs - Google Patents

Perfectionnements aux avanceurs automatiques pour marteaux perforateurs

Info

Publication number
FR863775A
FR863775A FR863775DA FR863775A FR 863775 A FR863775 A FR 863775A FR 863775D A FR863775D A FR 863775DA FR 863775 A FR863775 A FR 863775A
Authority
FR
France
Prior art keywords
hammer drills
automatic feeders
feeders
automatic
drills
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
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.)
Compagnie Ingersoll Rand
Original Assignee
Compagnie Ingersoll Rand
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 Compagnie Ingersoll Rand filed Critical Compagnie Ingersoll Rand
Application granted granted Critical
Publication of FR863775A publication Critical patent/FR863775A/fr
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
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E21B44/02—Automatic control of the tool feed
    • E21B44/08—Automatic control of the tool feed in response to the amplitude of the movement of the percussion tool, e.g. jump or recoil

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
FR863775D 1939-09-29 1939-09-29 Perfectionnements aux avanceurs automatiques pour marteaux perforateurs Expired FR863775A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR863775T 1939-09-29

Publications (1)

Publication Number Publication Date
FR863775A true FR863775A (fr) 1941-04-09

Family

ID=9343390

Family Applications (1)

Application Number Title Priority Date Filing Date
FR863775D Expired FR863775A (fr) 1939-09-29 1939-09-29 Perfectionnements aux avanceurs automatiques pour marteaux perforateurs

Country Status (1)

Country Link
FR (1) FR863775A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4378054A (en) * 1979-09-05 1983-03-29 Atlas Copco France S.A. Taphole opening apparatus for blast furnaces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4378054A (en) * 1979-09-05 1983-03-29 Atlas Copco France S.A. Taphole opening apparatus for blast furnaces

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