GB452050A - Detachable bits for rock drills - Google Patents

Detachable bits for rock drills

Info

Publication number
GB452050A
GB452050A GB5115/35A GB511535A GB452050A GB 452050 A GB452050 A GB 452050A GB 5115/35 A GB5115/35 A GB 5115/35A GB 511535 A GB511535 A GB 511535A GB 452050 A GB452050 A GB 452050A
Authority
GB
United Kingdom
Prior art keywords
bit
recess
steel
rock drills
feb
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
GB5115/35A
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
Publication of GB452050A publication Critical patent/GB452050A/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
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like

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

452,050. Percussive drills. LIDDICOAT, P., Timmins, Ontario, Canada. Feb. 16, 1935, No. 5115. Convention date, Feb. 17, 1934. [Class 124] The bit 4 is formed with an angular or oval recess to receive the shaped end of the drill steel 1. Lugs 14, 15, 16 on the steel deform the edge 19 of the recess and press it into a recess 18, thus attaching the bit to the steel. The recess in the bit has a partially concave bottom 10. The cutting edges of the bit are cruciform.
GB5115/35A 1934-02-17 1935-02-16 Detachable bits for rock drills Expired GB452050A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA452050X 1934-02-17

Publications (1)

Publication Number Publication Date
GB452050A true GB452050A (en) 1936-08-17

Family

ID=4171610

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5115/35A Expired GB452050A (en) 1934-02-17 1935-02-16 Detachable bits for rock drills

Country Status (1)

Country Link
GB (1) GB452050A (en)

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