BE495852A - - Google Patents

Info

Publication number
BE495852A
BE495852A BE495852DA BE495852A BE 495852 A BE495852 A BE 495852A BE 495852D A BE495852D A BE 495852DA BE 495852 A BE495852 A BE 495852A
Authority
BE
Belgium
Prior art keywords
switch
finger
notch
carriage
motor
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE495852A publication Critical patent/BE495852A/fr

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B44/00Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E21B44/02Automatic control of the tool feed

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
BE495852D BE495852A (en(2012))

Publications (1)

Publication Number Publication Date
BE495852A true BE495852A (en(2012))

Family

ID=139230

Family Applications (1)

Application Number Title Priority Date Filing Date
BE495852D BE495852A (en(2012))

Country Status (1)

Country Link
BE (1) BE495852A (en(2012))

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