BE480737A - - Google Patents

Info

Publication number
BE480737A
BE480737A BE480737DA BE480737A BE 480737 A BE480737 A BE 480737A BE 480737D A BE480737D A BE 480737DA BE 480737 A BE480737 A BE 480737A
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 BE480737A publication Critical patent/BE480737A/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)
BE480737D 1946-03-08 BE480737A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US634139XA 1946-03-08 1946-03-08

Publications (1)

Publication Number Publication Date
BE480737A true BE480737A (enrdf_load_html_response)

Family

ID=22049031

Family Applications (1)

Application Number Title Priority Date Filing Date
BE480737D BE480737A (enrdf_load_html_response) 1946-03-08

Country Status (3)

Country Link
BE (1) BE480737A (enrdf_load_html_response)
FR (1) FR961918A (enrdf_load_html_response)
GB (1) GB634139A (enrdf_load_html_response)

Also Published As

Publication number Publication date
GB634139A (en) 1950-03-15
FR961918A (enrdf_load_html_response) 1950-05-25

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