FR371058A - Perforatrice électrique - Google Patents

Perforatrice électrique

Info

Publication number
FR371058A
FR371058A FR371058A FR371058DA FR371058A FR 371058 A FR371058 A FR 371058A FR 371058 A FR371058 A FR 371058A FR 371058D A FR371058D A FR 371058DA FR 371058 A FR371058 A FR 371058A
Authority
FR
France
Prior art keywords
hole punch
electric hole
electric
punch
hole
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
FR371058A
Other languages
English (en)
Inventor
Louis Potterat
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 FR371058A publication Critical patent/FR371058A/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
    • 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
    • E21B19/086—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 with a fluid-actuated cylinder
    • 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)
FR371058A 1906-11-03 1906-11-03 Perforatrice électrique Expired FR371058A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR371058T 1906-11-03

Publications (1)

Publication Number Publication Date
FR371058A true FR371058A (fr) 1907-02-26

Family

ID=1417937

Family Applications (1)

Application Number Title Priority Date Filing Date
FR371058A Expired FR371058A (fr) 1906-11-03 1906-11-03 Perforatrice électrique

Country Status (1)

Country Link
FR (1) FR371058A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2253845A1 (de) * 1972-11-03 1974-05-16 Salzgitter Maschinen Ag Spindel eines drehantriebs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2253845A1 (de) * 1972-11-03 1974-05-16 Salzgitter Maschinen Ag Spindel eines drehantriebs

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