BE481890A - - Google Patents

Info

Publication number
BE481890A
BE481890A BE481890DA BE481890A BE 481890 A BE481890 A BE 481890A BE 481890D A BE481890D A BE 481890DA BE 481890 A BE481890 A BE 481890A
Authority
BE
Belgium
Prior art keywords
screw
tool
nut
crown
motor
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE481890A publication Critical patent/BE481890A/fr

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Forests & Forestry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Drilling And Boring (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
BE481890D BE481890A (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
BE481890A true BE481890A (enrdf_load_stackoverflow)

Family

ID=128734

Family Applications (1)

Application Number Title Priority Date Filing Date
BE481890D BE481890A (enrdf_load_stackoverflow)

Country Status (1)

Country Link
BE (1) BE481890A (enrdf_load_stackoverflow)

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