FR414077A - Perforatrice rotative électrique pour mines - Google Patents

Perforatrice rotative électrique pour mines

Info

Publication number
FR414077A
FR414077A FR414077A FR414077DA FR414077A FR 414077 A FR414077 A FR 414077A FR 414077 A FR414077 A FR 414077A FR 414077D A FR414077D A FR 414077DA FR 414077 A FR414077 A FR 414077A
Authority
FR
France
Prior art keywords
mines
electric rotary
rotary hole
hole puncher
puncher
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
FR414077A
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.)
CIE GENERALE ELECTR
General Electric Co
Original Assignee
CIE GENERALE ELECTR
General Electric Co
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 CIE GENERALE ELECTR, General Electric Co filed Critical CIE GENERALE ELECTR
Application granted granted Critical
Publication of FR414077A publication Critical patent/FR414077A/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
    • E21B3/00—Rotary drilling
    • E21B3/02—Surface drives for rotary drilling
    • 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods

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)
FR414077A 1910-02-25 1910-02-25 Perforatrice rotative électrique pour mines Expired FR414077A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR414077T 1910-02-25

Publications (1)

Publication Number Publication Date
FR414077A true FR414077A (fr) 1910-08-25

Family

ID=1457807

Family Applications (1)

Application Number Title Priority Date Filing Date
FR414077A Expired FR414077A (fr) 1910-02-25 1910-02-25 Perforatrice rotative électrique pour mines

Country Status (1)

Country Link
FR (1) FR414077A (fr)

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