GB529694A - Improvements in or relating to feeding devices for rock drills - Google Patents

Improvements in or relating to feeding devices for rock drills

Info

Publication number
GB529694A
GB529694A GB16621/39A GB1662139A GB529694A GB 529694 A GB529694 A GB 529694A GB 16621/39 A GB16621/39 A GB 16621/39A GB 1662139 A GB1662139 A GB 1662139A GB 529694 A GB529694 A GB 529694A
Authority
GB
United Kingdom
Prior art keywords
relating
rock drills
feeding devices
cylinder
june
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
GB16621/39A
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.)
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
Publication of GB529694A publication Critical patent/GB529694A/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)
  • Actuator (AREA)
  • Earth Drilling (AREA)
GB16621/39A 1938-06-11 1939-06-06 Improvements in or relating to feeding devices for rock drills Expired GB529694A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US529694XA 1938-06-11 1938-06-11

Publications (1)

Publication Number Publication Date
GB529694A true GB529694A (en) 1940-11-26

Family

ID=21981076

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16621/39A Expired GB529694A (en) 1938-06-11 1939-06-06 Improvements in or relating to feeding devices for rock drills

Country Status (3)

Country Link
BE (1) BE434813A (enrdf_load_html_response)
FR (1) FR855963A (enrdf_load_html_response)
GB (1) GB529694A (enrdf_load_html_response)

Also Published As

Publication number Publication date
FR855963A (fr) 1940-05-24
BE434813A (enrdf_load_html_response)

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