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FR1227753A - Hammer drill stand - Google Patents

Hammer drill stand

Info

Publication number
FR1227753A
FR1227753A FR797855A FR797855A FR1227753A FR 1227753 A FR1227753 A FR 1227753A FR 797855 A FR797855 A FR 797855A FR 797855 A FR797855 A FR 797855A FR 1227753 A FR1227753 A FR 1227753A
Authority
FR
France
Prior art keywords
hammer drill
drill stand
stand
hammer
drill
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
FR797855A
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 FR1227753A publication Critical patent/FR1227753A/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
    • E21B19/087—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 by means of a swinging arm

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)
FR797855A 1958-06-20 1959-06-18 Hammer drill stand Expired FR1227753A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT1227753X 1958-06-20

Publications (1)

Publication Number Publication Date
FR1227753A true FR1227753A (en) 1960-08-24

Family

ID=3687504

Family Applications (1)

Application Number Title Priority Date Filing Date
FR797855A Expired FR1227753A (en) 1958-06-20 1959-06-18 Hammer drill stand

Country Status (1)

Country Link
FR (1) FR1227753A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3119455A (en) * 1961-02-17 1964-01-28 Thor Power Tool Co Multiple stage feed leg assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3119455A (en) * 1961-02-17 1964-01-28 Thor Power Tool Co Multiple stage feed leg assembly

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