GB308542A - Improvements relating to percussive rock-drilling tools - Google Patents

Improvements relating to percussive rock-drilling tools

Info

Publication number
GB308542A
GB308542A GB2384028A GB2384028A GB308542A GB 308542 A GB308542 A GB 308542A GB 2384028 A GB2384028 A GB 2384028A GB 2384028 A GB2384028 A GB 2384028A GB 308542 A GB308542 A GB 308542A
Authority
GB
United Kingdom
Prior art keywords
improvements relating
percussive rock
drilling tools
cutting edges
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
GB2384028A
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.)
HANS NEPKE
Original Assignee
HANS NEPKE
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 HANS NEPKE filed Critical HANS NEPKE
Priority to GB2384028A priority Critical patent/GB308542A/en
Publication of GB308542A publication Critical patent/GB308542A/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
    • E21B10/00—Drill bits
    • E21B10/36—Percussion drill bits

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)

Abstract

308,542. Sauer, C., and Nepke, H. Aug. 18, 1928. Percissive drills.-A percussive rock-drilling tool with a helically grooved shank is provided with several cutting edges c<1>, c<2>, c<3>, each formed by the inter-section of two surfaces of different inclination. Rim cutting edges e<1>, e<2>, e<3> may be provided if desired at the outer ends of the cutting edges.
GB2384028A 1928-08-18 1928-08-18 Improvements relating to percussive rock-drilling tools Expired GB308542A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2384028A GB308542A (en) 1928-08-18 1928-08-18 Improvements relating to percussive rock-drilling tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2384028A GB308542A (en) 1928-08-18 1928-08-18 Improvements relating to percussive rock-drilling tools

Publications (1)

Publication Number Publication Date
GB308542A true GB308542A (en) 1929-03-28

Family

ID=10202152

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2384028A Expired GB308542A (en) 1928-08-18 1928-08-18 Improvements relating to percussive rock-drilling tools

Country Status (1)

Country Link
GB (1) GB308542A (en)

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