BE493209A - - Google Patents

Info

Publication number
BE493209A
BE493209A BE493209DA BE493209A BE 493209 A BE493209 A BE 493209A BE 493209D A BE493209D A BE 493209DA BE 493209 A BE493209 A BE 493209A
Authority
BE
Belgium
Application number
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.)
Publication of BE493209A publication Critical patent/BE493209A/xx

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
    • E21B19/081—Screw-and-nut feed mechanisms

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)
  • Earth Drilling (AREA)
BE493209D 1949-01-12 BE493209A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1008111X 1949-01-12

Publications (1)

Publication Number Publication Date
BE493209A true BE493209A (fr)

Family

ID=10867748

Family Applications (1)

Application Number Title Priority Date Filing Date
BE493209D BE493209A (fr) 1949-01-12

Country Status (3)

Country Link
BE (1) BE493209A (fr)
DE (1) DE809182C (fr)
FR (1) FR1008111A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5393175A (en) * 1993-06-18 1995-02-28 Courville; Leo Diamond core drill

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5393175A (en) * 1993-06-18 1995-02-28 Courville; Leo Diamond core drill
WO1996005407A1 (fr) * 1993-06-18 1996-02-22 Courville Leo Foreuse au diamant

Also Published As

Publication number Publication date
FR1008111A (fr) 1952-05-14
DE809182C (de) 1951-07-23

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