GB324412A - Improvements in rock drills - Google Patents

Improvements in rock drills

Info

Publication number
GB324412A
GB324412A GB2684629A GB2684629A GB324412A GB 324412 A GB324412 A GB 324412A GB 2684629 A GB2684629 A GB 2684629A GB 2684629 A GB2684629 A GB 2684629A GB 324412 A GB324412 A GB 324412A
Authority
GB
United Kingdom
Prior art keywords
drill
rock drills
bore
steel
mav
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
GB2684629A
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 GB2684629A priority Critical patent/GB324412A/en
Publication of GB324412A publication Critical patent/GB324412A/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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings

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)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

324,412. Potter, H. S. July 25, 1928. Divided on 320,907. Tools and bits.-A drill steel with a central bore to receive a water tube is formed from a length of hollow steel by opening out the bore by heating and inserting a series of tapered pins under pressure, with or without simultaneous pressure on the end of the shank. The operation mav be effected within a template-container whereby the drill may be given the desired external conformation, which may be finished by machining.
GB2684629A 1928-07-25 1928-07-25 Improvements in rock drills Expired GB324412A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2684629A GB324412A (en) 1928-07-25 1928-07-25 Improvements in rock drills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2684629A GB324412A (en) 1928-07-25 1928-07-25 Improvements in rock drills

Publications (1)

Publication Number Publication Date
GB324412A true GB324412A (en) 1930-01-27

Family

ID=10250178

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2684629A Expired GB324412A (en) 1928-07-25 1928-07-25 Improvements in rock drills

Country Status (1)

Country Link
GB (1) GB324412A (en)

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