GB737246A - Rock drill bit with a cutting insert of hard metal - Google Patents

Rock drill bit with a cutting insert of hard metal

Info

Publication number
GB737246A
GB737246A GB30375/53A GB3037553A GB737246A GB 737246 A GB737246 A GB 737246A GB 30375/53 A GB30375/53 A GB 30375/53A GB 3037553 A GB3037553 A GB 3037553A GB 737246 A GB737246 A GB 737246A
Authority
GB
United Kingdom
Prior art keywords
sides
insert
groove
drill bit
shaped
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
GB30375/53A
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.)
Sandvik AB
Original Assignee
Sandvik AB
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 Sandvik AB filed Critical Sandvik AB
Publication of GB737246A publication Critical patent/GB737246A/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/46Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/58Chisel-type inserts

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

737,246. Percussive drills. SANDVIKENS JERNVERKS AKTIEBOLAG. Nov. 3, 1953 [Nov. 3, 1952], No. 30375/53. Class 124. A rock drill bit has a brazed joint between an insert and a groove in the bit of minimum thickness at the sides intermediate the ends and maximum thickness at the ends. As shown, an insert 11 may have spherically curved sides 12 so that the maximum thickness of the joint 16 is at the outer ends of the insert, the sides of the groove being straight. The sides of the insert may be curved cylindrically, or each side may be formed of straight surfaces meeting at an angle at the centre, or the sides may be stepped, Fig. 8. The sides of the groove may be shaped as above and the sides of the insert straight or the sides of both groove and insert may be shaped. The bottom of the groove and/or the insert may be similarly shaped and used in combination or not with shaped sides of the insert and/or groove.
GB30375/53A 1952-11-03 1953-11-03 Rock drill bit with a cutting insert of hard metal Expired GB737246A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE737246X 1952-11-03

Publications (1)

Publication Number Publication Date
GB737246A true GB737246A (en) 1955-09-21

Family

ID=20319733

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30375/53A Expired GB737246A (en) 1952-11-03 1953-11-03 Rock drill bit with a cutting insert of hard metal

Country Status (1)

Country Link
GB (1) GB737246A (en)

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