GB191121257A - Improvements in and relating to Rock Drills. - Google Patents

Improvements in and relating to Rock Drills.

Info

Publication number
GB191121257A
GB191121257A GB191121257DA GB191121257A GB 191121257 A GB191121257 A GB 191121257A GB 191121257D A GB191121257D A GB 191121257DA GB 191121257 A GB191121257 A GB 191121257A
Authority
GB
United Kingdom
Prior art keywords
relating
rock drills
hose
rock
knapp
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
Moses Arthur Knapp
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 GB191121257A publication Critical patent/GB191121257A/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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
    • 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)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
GB191121257D 1911-09-26 1911-09-26 Improvements in and relating to Rock Drills. Expired GB191121257A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191121257T 1911-09-26

Publications (1)

Publication Number Publication Date
GB191121257A true GB191121257A (en) 1912-09-26

Family

ID=32567312

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191121257D Expired GB191121257A (en) 1911-09-26 1911-09-26 Improvements in and relating to Rock Drills.

Country Status (2)

Country Link
FR (1) FR434688A (fr)
GB (1) GB191121257A (fr)

Also Published As

Publication number Publication date
FR434688A (fr) 1912-02-09

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