FR346076A - Perfectionnements aux perforatrices pour roches - Google Patents

Perfectionnements aux perforatrices pour roches

Info

Publication number
FR346076A
FR346076A FR346076DA FR346076A FR 346076 A FR346076 A FR 346076A FR 346076D A FR346076D A FR 346076DA FR 346076 A FR346076 A FR 346076A
Authority
FR
France
Prior art keywords
punches
rock
rock punches
punches improvements
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
English (en)
Inventor
John Thomas Blackett
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR346076A publication Critical patent/FR346076A/fr
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
    • E21B19/081—Screw-and-nut feed mechanisms

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)
FR346076D 1903-11-23 1904-09-06 Perfectionnements aux perforatrices pour roches Expired FR346076A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB346076X 1903-11-23

Publications (1)

Publication Number Publication Date
FR346076A true FR346076A (fr) 1904-12-31

Family

ID=1394822

Family Applications (1)

Application Number Title Priority Date Filing Date
FR346076D Expired FR346076A (fr) 1903-11-23 1904-09-06 Perfectionnements aux perforatrices pour roches

Country Status (1)

Country Link
FR (1) FR346076A (fr)

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