FR949150A - Outil de défonçage combiné - Google Patents

Outil de défonçage combiné

Info

Publication number
FR949150A
FR949150A FR949150DA FR949150A FR 949150 A FR949150 A FR 949150A FR 949150D A FR949150D A FR 949150DA FR 949150 A FR949150 A FR 949150A
Authority
FR
France
Prior art keywords
combination router
router
combination
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)
French (fr)
Inventor
Paul Marcerou
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 FR949150A publication Critical patent/FR949150A/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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
    • 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
    • E21B19/081—Screw-and-nut feed mechanisms
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/001—Drilling a non circular hole
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/52—Machines incorporating two or more of the slitting means according to groups E21C25/02, E21C25/06, E21C25/16, E21C25/20 and E21C25/22
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/22—Automatic control in amplifiers having discharge tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)
FR949150D 1947-07-01 1947-07-01 Outil de défonçage combiné Expired FR949150A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR851486X 1947-07-01

Publications (1)

Publication Number Publication Date
FR949150A true FR949150A (fr) 1949-08-22

Family

ID=9323611

Family Applications (2)

Application Number Title Priority Date Filing Date
FR949150D Expired FR949150A (fr) 1947-07-01 1947-07-01 Outil de défonçage combiné
FR56970D Expired FR56970E (fr) 1947-07-01 1947-12-30 Outil de défonçage combiné

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR56970D Expired FR56970E (fr) 1947-07-01 1947-12-30 Outil de défonçage combiné

Country Status (4)

Country Link
BE (1) BE422748A (es)
DE (1) DE851486C (es)
FR (2) FR949150A (es)
LU (1) LU29081A1 (es)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102691500A (zh) * 2011-03-19 2012-09-26 刘素华 锯冲式采煤机
CN110242293A (zh) * 2019-06-21 2019-09-17 辽宁工程技术大学 一种旋挖式截煤装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1075070B (de) * 1960-02-11 Gebr. Eickhoff Maschinenfabrik u. Eisengießerei m.b.H., Bochum Gewinnungsmaschine mit mehreren getrieblich miteinander verbundenen, achsparallelen Schrämwalzen
GB1552636A (en) * 1975-05-29 1979-09-19 Wibom G H O Drilling machine
US5570934A (en) * 1995-03-16 1996-11-05 Hydro-Quebec Traction boring device using multiple trepans for producing large cuts in concrete works and the like and method of producing cuts
DE102011087096B4 (de) * 2011-11-25 2014-12-11 Pierre-Yves Mutel Werkzeug und Verfahren zum Erstellen von Bohrlöchern mit einem nicht rotationssymmetrischen Querschnitt

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102691500A (zh) * 2011-03-19 2012-09-26 刘素华 锯冲式采煤机
CN110242293A (zh) * 2019-06-21 2019-09-17 辽宁工程技术大学 一种旋挖式截煤装置

Also Published As

Publication number Publication date
FR56970E (fr) 1952-10-10
BE422748A (es)
DE851486C (de) 1952-10-06
LU29081A1 (es)

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