CH220151A - Drilling machine. - Google Patents

Drilling machine.

Info

Publication number
CH220151A
CH220151A CH220151DA CH220151A CH 220151 A CH220151 A CH 220151A CH 220151D A CH220151D A CH 220151DA CH 220151 A CH220151 A CH 220151A
Authority
CH
Switzerland
Prior art keywords
drilling machine
drilling
machine
Prior art date
Application number
Other languages
German (de)
Inventor
Flottmann Aktiengesellschaft
Original Assignee
Flottmann Ag
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 by Flottmann Ag filed Critical Flottmann Ag
Publication of CH220151A publication Critical patent/CH220151A/en

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
    • E21B6/00Drives for drilling with combined rotary and percussive action
    • E21B6/06Drives for drilling with combined rotary and percussive action the rotation being intermittent, e.g. obtained by ratchet device

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)
CH220151D 1940-03-27 1941-03-24 Drilling machine. CH220151A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE220151X 1940-03-27

Publications (1)

Publication Number Publication Date
CH220151A true CH220151A (en) 1942-03-31

Family

ID=5832914

Family Applications (1)

Application Number Title Priority Date Filing Date
CH220151D CH220151A (en) 1940-03-27 1941-03-24 Drilling machine.

Country Status (3)

Country Link
BE (1) BE441002A (en)
CH (1) CH220151A (en)
FR (1) FR871080A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE924202C (en) * 1952-10-26 1955-02-28 Friedrich Heinrich Flottmann F Hammer drill

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE924202C (en) * 1952-10-26 1955-02-28 Friedrich Heinrich Flottmann F Hammer drill

Also Published As

Publication number Publication date
FR871080A (en) 1942-04-07
BE441002A (en)

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