[go: up one dir, main page]

GB420241A - Improvements relating to rock drill bits - Google Patents

Improvements relating to rock drill bits

Info

Publication number
GB420241A
GB420241A GB1784133A GB1784133A GB420241A GB 420241 A GB420241 A GB 420241A GB 1784133 A GB1784133 A GB 1784133A GB 1784133 A GB1784133 A GB 1784133A GB 420241 A GB420241 A GB 420241A
Authority
GB
United Kingdom
Prior art keywords
rock drill
drill bits
improvements relating
edges
rock
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
GB1784133A
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.)
Climax Rock Drill & Engineerin
RAYNAR DE HELE ST STEPHENS
Original Assignee
Climax Rock Drill & Engineerin
RAYNAR DE HELE ST STEPHENS
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 Climax Rock Drill & Engineerin, RAYNAR DE HELE ST STEPHENS filed Critical Climax Rock Drill & Engineerin
Priority to GB1784133A priority Critical patent/GB420241A/en
Publication of GB420241A publication Critical patent/GB420241A/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)
  • Drilling Tools (AREA)

Abstract

420,241. Percussive drills. CLIMAX ROCK-DRILL & ENGINEERING WORKS, Ltd., 4, Broad Street Place, Blomfield Street, London, and ST. STEPHENS, R. DE H., Homefield, Camborne, Cornwall. June 22, 1933, No. 17841. [Class 124] In a rock drill, the cutting edges 20, 24 of which all lie in one plane, the number of cutting edges is increased towards the outer periphery. These outer edges 24 branch from the outer end of the inner edges 20.
GB1784133A 1933-06-22 1933-06-22 Improvements relating to rock drill bits Expired GB420241A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1784133A GB420241A (en) 1933-06-22 1933-06-22 Improvements relating to rock drill bits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1784133A GB420241A (en) 1933-06-22 1933-06-22 Improvements relating to rock drill bits

Publications (1)

Publication Number Publication Date
GB420241A true GB420241A (en) 1934-11-28

Family

ID=10102151

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1784133A Expired GB420241A (en) 1933-06-22 1933-06-22 Improvements relating to rock drill bits

Country Status (1)

Country Link
GB (1) GB420241A (en)

Similar Documents

Publication Publication Date Title
GB420241A (en) Improvements relating to rock drill bits
GB397144A (en) Improvements in or relating to rock-drills
FR777596A (en) Improvements made to bits, drills, reamers, taps and similar tools
FR855206A (en) Percussion drill bit for drilling rocks or other bodies
CA355443A (en) Rotary earth boring drill
CA329376A (en) Replaceable bit rock drill
CA360177A (en) Rock drill bit
CA359138A (en) Rock drill bit
CA336890A (en) Rock drill bit
GB438013A (en) Improvements in percussive rock drilling machines
CA361469A (en) Rock drill water tube
CA355444A (en) Earth boring drill
AU113214B2 (en) Improvements in or relating to rock drills having detachable bits
CA327313A (en) Hammer rock drill
CA355055A (en) Stone boring tool or rock drill
CA315893A (en) Earth boring drill
CA315894A (en) Earth boring drill
AU443940A (en) Improvements in or relating to rock drills having detachable bits
CA377742A (en) Rock drill shaft and bit
GB319339A (en) Improvement in water tube for rock drills
CA345742A (en) Earth boring drill
CA355576A (en) Well drilling bit
CA358649A (en) Rotary drilling bit
GB477205A (en) Improvements relating to portable power-driven percussive tools
GB483886A (en) Improvements in or relating to rock drilling devices