FR521558A - Perforatrice à percussion - Google Patents

Perforatrice à percussion

Info

Publication number
FR521558A
FR521558A FR521558A FR521558DA FR521558A FR 521558 A FR521558 A FR 521558A FR 521558 A FR521558 A FR 521558A FR 521558D A FR521558D A FR 521558DA FR 521558 A FR521558 A FR 521558A
Authority
FR
France
Prior art keywords
percussion
punch
percussion punch
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
FR521558A
Other languages
English (en)
Inventor
Seguin Fisher
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
Application granted granted Critical
Publication of FR521558A publication Critical patent/FR521558A/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)
FR521558A 1920-07-30 1920-07-30 Perforatrice à percussion Expired FR521558A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR521558T 1920-07-30

Publications (1)

Publication Number Publication Date
FR521558A true FR521558A (fr) 1921-07-16

Family

ID=8917337

Family Applications (1)

Application Number Title Priority Date Filing Date
FR521558A Expired FR521558A (fr) 1920-07-30 1920-07-30 Perforatrice à percussion

Country Status (1)

Country Link
FR (1) FR521558A (fr)

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