CH528007A - Device for adjusting the arms of rotating devices - Google Patents

Device for adjusting the arms of rotating devices

Info

Publication number
CH528007A
CH528007A CH1202670A CH1202670A CH528007A CH 528007 A CH528007 A CH 528007A CH 1202670 A CH1202670 A CH 1202670A CH 1202670 A CH1202670 A CH 1202670A CH 528007 A CH528007 A CH 528007A
Authority
CH
Switzerland
Prior art keywords
arms
adjusting
rotating devices
rotating
devices
Prior art date
Application number
CH1202670A
Other languages
German (de)
Inventor
Fromme Theodor
Original Assignee
Gruen & Bilfinger 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 Gruen & Bilfinger Ag filed Critical Gruen & Bilfinger Ag
Publication of CH528007A publication Critical patent/CH528007A/en

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
    • E21B10/00—Drill bits
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • E21B10/322—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools cutter shifted by fluid pressure

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)
CH1202670A 1969-08-13 1970-08-11 Device for adjusting the arms of rotating devices CH528007A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691941177 DE1941177A1 (en) 1969-08-13 1969-08-13 Device for adjusting the arms of rotating devices

Publications (1)

Publication Number Publication Date
CH528007A true CH528007A (en) 1972-09-15

Family

ID=5742670

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1202670A CH528007A (en) 1969-08-13 1970-08-11 Device for adjusting the arms of rotating devices

Country Status (3)

Country Link
AT (1) AT289008B (en)
CH (1) CH528007A (en)
DE (1) DE1941177A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1294222B (en) * 1964-04-23 1969-04-30 Bristol Siddeley Engines Ltd Vertical take off and landing aircraft
DE2827820C2 (en) * 1978-06-24 1981-09-17 Wirth Maschinen- und Bohrgeräte-Fabrik GmbH, 5140 Erkelenz Device for supplying compressed air to a unit located in a borehole

Also Published As

Publication number Publication date
DE1941177A1 (en) 1971-04-22
AT289008B (en) 1971-03-25

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Legal Events

Date Code Title Description
PL Patent ceased