FR1034058A - Improvements to hammer drills with support - Google Patents

Improvements to hammer drills with support

Info

Publication number
FR1034058A
FR1034058A FR1034058DA FR1034058A FR 1034058 A FR1034058 A FR 1034058A FR 1034058D A FR1034058D A FR 1034058DA FR 1034058 A FR1034058 A FR 1034058A
Authority
FR
France
Prior art keywords
support
hammer drills
drills
hammer
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.)
FRIEDRICH HEINRICH FLOTTMANN D
Original Assignee
FRIEDRICH HEINRICH FLOTTMANN D
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 FRIEDRICH HEINRICH FLOTTMANN D filed Critical FRIEDRICH HEINRICH FLOTTMANN D
Application granted granted Critical
Publication of FR1034058A publication Critical patent/FR1034058A/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)
FR1034058D 1950-03-24 1951-03-16 Improvements to hammer drills with support Expired FR1034058A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1034058X 1950-03-24

Publications (1)

Publication Number Publication Date
FR1034058A true FR1034058A (en) 1953-07-17

Family

ID=7715791

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1034058D Expired FR1034058A (en) 1950-03-24 1951-03-16 Improvements to hammer drills with support

Country Status (1)

Country Link
FR (1) FR1034058A (en)

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