FR403554A - Improvements to percussion drills - Google Patents

Improvements to percussion drills

Info

Publication number
FR403554A
FR403554A FR403554DA FR403554A FR 403554 A FR403554 A FR 403554A FR 403554D A FR403554D A FR 403554DA FR 403554 A FR403554 A FR 403554A
Authority
FR
France
Prior art keywords
percussion drills
percussion
drills
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.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
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 Ingersoll Rand Co filed Critical Ingersoll Rand Co
Application granted granted Critical
Publication of FR403554A publication Critical patent/FR403554A/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)
FR403554D 1909-06-01 1909-06-01 Improvements to percussion drills Expired FR403554A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR403554T 1909-06-01

Publications (1)

Publication Number Publication Date
FR403554A true FR403554A (en) 1909-11-08

Family

ID=1448192

Family Applications (1)

Application Number Title Priority Date Filing Date
FR403554D Expired FR403554A (en) 1909-06-01 1909-06-01 Improvements to percussion drills

Country Status (1)

Country Link
FR (1) FR403554A (en)

Similar Documents

Publication Publication Date Title
FR403554A (en) Improvements to percussion drills
FR427828A (en) Improvements to percussion drills
FR394284A (en) Improvements to percussion drills
FR394285A (en) Improvements to percussion drills
FR394286A (en) Improvements to percussion drills
FR373395A (en) Improvements to percussion drills
FR365553A (en) Improvements to percussion drills
FR399892A (en) Improvements to percussion punches
FR398694A (en) Improvements to combination locks
FR432665A (en) Improvements to percussion punches
FR402880A (en) Improvements to twist drills
FR379956A (en) Improvements to electro-pneumatic percussion drills
FR411167A (en) Improvements made to mechanical seed drills
FR418322A (en) Improvements to reamers
CH49939A (en) Hand drill
CH45674A (en) Combined tool
FR413066A (en) Improvements to wrenches
FR407617A (en) Hand percussion instrument
FR403762A (en) Improvements to adding machines
FR409219A (en) Improvements to adding machines
FR413891A (en) Improvements to percussion punches
FR413659A (en) Improvements to hairbrushes
FR415809A (en) Drill chuck
FR391154A (en) Hand drill
FR368060A (en) Percussion drill