GB560442A - Improved fluid feed control for rock drills - Google Patents

Improved fluid feed control for rock drills

Info

Publication number
GB560442A
GB560442A GB152/43A GB15243A GB560442A GB 560442 A GB560442 A GB 560442A GB 152/43 A GB152/43 A GB 152/43A GB 15243 A GB15243 A GB 15243A GB 560442 A GB560442 A GB 560442A
Authority
GB
United Kingdom
Prior art keywords
valve
pressure
housing
feed
jan
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
GB152/43A
Other languages
English (en)
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.)
Atlas Copco AB
Original Assignee
Atlas Diesel AB
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 Atlas Diesel AB filed Critical Atlas Diesel AB
Publication of GB560442A publication Critical patent/GB560442A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/14—Control devices for the reciprocating piston
    • B25D9/16—Valve arrangements therefor
    • 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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
GB152/43A 1942-01-15 1943-01-04 Improved fluid feed control for rock drills Expired GB560442A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE560442X 1942-01-15

Publications (1)

Publication Number Publication Date
GB560442A true GB560442A (en) 1944-04-04

Family

ID=20312010

Family Applications (1)

Application Number Title Priority Date Filing Date
GB152/43A Expired GB560442A (en) 1942-01-15 1943-01-04 Improved fluid feed control for rock drills

Country Status (2)

Country Link
BE (1) BE482965A (en:Method)
GB (1) GB560442A (en:Method)

Also Published As

Publication number Publication date
BE482965A (en:Method)

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