FR1169440A - Air pressure regulator for a drill prop, in particular a drill tool powered by compressed air - Google Patents

Air pressure regulator for a drill prop, in particular a drill tool powered by compressed air

Info

Publication number
FR1169440A
FR1169440A FR1169440DA FR1169440A FR 1169440 A FR1169440 A FR 1169440A FR 1169440D A FR1169440D A FR 1169440DA FR 1169440 A FR1169440 A FR 1169440A
Authority
FR
France
Prior art keywords
drill
prop
pressure regulator
compressed air
air pressure
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gebrueder Boehler and Co AG
Original Assignee
Gebrueder Boehler and Co 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 Gebrueder Boehler and Co AG filed Critical Gebrueder Boehler and Co AG
Application granted granted Critical
Publication of FR1169440A publication Critical patent/FR1169440A/en
Expired legal-status Critical Current

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
    • E21B19/086—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 with a fluid-actuated cylinder

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)
FR1169440D 1956-03-13 1957-03-13 Air pressure regulator for a drill prop, in particular a drill tool powered by compressed air Expired FR1169440A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT1169440X 1956-03-13

Publications (1)

Publication Number Publication Date
FR1169440A true FR1169440A (en) 1958-12-29

Family

ID=3686512

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1169440D Expired FR1169440A (en) 1956-03-13 1957-03-13 Air pressure regulator for a drill prop, in particular a drill tool powered by compressed air

Country Status (1)

Country Link
FR (1) FR1169440A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0367875A1 (en) * 1987-05-12 1990-05-16 Hydra-Push Pty. Ltd Pusher leg for rock drill apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0367875A1 (en) * 1987-05-12 1990-05-16 Hydra-Push Pty. Ltd Pusher leg for rock drill apparatus

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