GB232346A - Improvements in rock drills - Google Patents

Improvements in rock drills

Info

Publication number
GB232346A
GB232346A GB1792/24A GB179224A GB232346A GB 232346 A GB232346 A GB 232346A GB 1792/24 A GB1792/24 A GB 1792/24A GB 179224 A GB179224 A GB 179224A GB 232346 A GB232346 A GB 232346A
Authority
GB
United Kingdom
Prior art keywords
rock drills
sleeve
flats
robert
drill
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
GB1792/24A
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 GB1792/24A priority Critical patent/GB232346A/en
Publication of GB232346A publication Critical patent/GB232346A/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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/10—Down-hole impacting means, e.g. hammers continuous unidirectional rotary motion of shaft or drilling pipe effecting consecutive impacts

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)
  • Earth Drilling (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

232,346. Robert, L. Jan. 22, 1924. Percussive drills.-In a hammer rock-drill the piston 2 has a reduced nose formed hexagonally or otherwise with flats and engaging a correspondingly-shaped sleeve 6, separate from the tool holder and the twist mechanism, for the purpose of preventing leakage of air. The sleeve is free to rotate inside a collar 7. Grooves 6<b> are for retaining oil.
GB1792/24A 1924-01-22 1924-01-22 Improvements in rock drills Expired GB232346A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1792/24A GB232346A (en) 1924-01-22 1924-01-22 Improvements in rock drills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1792/24A GB232346A (en) 1924-01-22 1924-01-22 Improvements in rock drills

Publications (1)

Publication Number Publication Date
GB232346A true GB232346A (en) 1925-04-23

Family

ID=9728074

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1792/24A Expired GB232346A (en) 1924-01-22 1924-01-22 Improvements in rock drills

Country Status (1)

Country Link
GB (1) GB232346A (en)

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