GB433012A - Improvements in, or relating to, drill shafts and bits adapted to be used with percussive drills - Google Patents

Improvements in, or relating to, drill shafts and bits adapted to be used with percussive drills

Info

Publication number
GB433012A
GB433012A GB2765134A GB2765134A GB433012A GB 433012 A GB433012 A GB 433012A GB 2765134 A GB2765134 A GB 2765134A GB 2765134 A GB2765134 A GB 2765134A GB 433012 A GB433012 A GB 433012A
Authority
GB
United Kingdom
Prior art keywords
relating
percussive
drill shafts
bits
class
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
GB2765134A
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 GB2765134A priority Critical patent/GB433012A/en
Publication of GB433012A publication Critical patent/GB433012A/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)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

433,012. Percussive drill steels. BEDFORD, R. A., Grange Farm, Stumperlowe, Sheffield. Sept. 26, 1934, Nos. 27651/34 and 449/35. [Class 124] [See also Group XXII] Percussive-drill steel shafts, bits, and connectors are formed with a socket in one end to receive a projection on the corresponding part. This socketed end is first hardened and tempered and is then coated with a layer of softer metal, e.g. copper, by electrolytic deposition, spraying or brazing. Specification 337,617, [Class 124], is referred to.
GB2765134A 1934-09-26 1934-09-26 Improvements in, or relating to, drill shafts and bits adapted to be used with percussive drills Expired GB433012A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2765134A GB433012A (en) 1934-09-26 1934-09-26 Improvements in, or relating to, drill shafts and bits adapted to be used with percussive drills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2765134A GB433012A (en) 1934-09-26 1934-09-26 Improvements in, or relating to, drill shafts and bits adapted to be used with percussive drills

Publications (1)

Publication Number Publication Date
GB433012A true GB433012A (en) 1935-08-07

Family

ID=10263036

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2765134A Expired GB433012A (en) 1934-09-26 1934-09-26 Improvements in, or relating to, drill shafts and bits adapted to be used with percussive drills

Country Status (1)

Country Link
GB (1) GB433012A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2195939A (en) * 1986-10-15 1988-04-20 Sandvik Ab Drill rod for percussion drilling

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2195939A (en) * 1986-10-15 1988-04-20 Sandvik Ab Drill rod for percussion drilling
GB2195939B (en) * 1986-10-15 1990-11-07 Sandvik Ab Member for percussion drilling and method of protection therefor
US5064004A (en) * 1986-10-15 1991-11-12 Sandvik Ab Drill rod for percussion drilling

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