GB177447A - Improvements in rotating devices for percussive rock drills - Google Patents

Improvements in rotating devices for percussive rock drills

Info

Publication number
GB177447A
GB177447A GB1820221A GB1820221A GB177447A GB 177447 A GB177447 A GB 177447A GB 1820221 A GB1820221 A GB 1820221A GB 1820221 A GB1820221 A GB 1820221A GB 177447 A GB177447 A GB 177447A
Authority
GB
United Kingdom
Prior art keywords
rotating devices
rock drills
percussive rock
piston
percussive
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
GB1820221A
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
Priority to GB1820221A priority Critical patent/GB177447A/en
Publication of GB177447A publication Critical patent/GB177447A/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
    • E21B6/00—Drives for drilling with combined rotary and percussive action
    • E21B6/06—Drives for drilling with combined rotary and percussive action the rotation being intermittent, e.g. obtained by ratchet device

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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)
  • Percussive Tools And Related Accessories (AREA)

Abstract

177,447. Jones, E. F. July 5, 1921. Percussive drills.-The polygonal part 7 of the hammer piston which fits in the drill chuck 2 is packed by cup-leather packing 16 to prevent mixture of air with the clearing water. The twist-bar 11, which, with its accompanying ratchet member 12, may be arranged in front of the piston 1, is also made of polygonal cross section.
GB1820221A 1921-07-05 1921-07-05 Improvements in rotating devices for percussive rock drills Expired GB177447A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1820221A GB177447A (en) 1921-07-05 1921-07-05 Improvements in rotating devices for percussive rock drills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1820221A GB177447A (en) 1921-07-05 1921-07-05 Improvements in rotating devices for percussive rock drills

Publications (1)

Publication Number Publication Date
GB177447A true GB177447A (en) 1922-03-30

Family

ID=10108396

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1820221A Expired GB177447A (en) 1921-07-05 1921-07-05 Improvements in rotating devices for percussive rock drills

Country Status (1)

Country Link
GB (1) GB177447A (en)

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