GB664983A - Improvements in and relating to tool tipping - Google Patents

Improvements in and relating to tool tipping

Info

Publication number
GB664983A
GB664983A GB2206149A GB2206149A GB664983A GB 664983 A GB664983 A GB 664983A GB 2206149 A GB2206149 A GB 2206149A GB 2206149 A GB2206149 A GB 2206149A GB 664983 A GB664983 A GB 664983A
Authority
GB
United Kingdom
Prior art keywords
insert
metal
bit
secured
slot
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
GB2206149A
Inventor
Brian Exley Berry
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.)
BRIAN EXLEY BERRY
Original Assignee
BRIAN EXLEY BERRY
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 BRIAN EXLEY BERRY filed Critical BRIAN EXLEY BERRY
Priority to GB2206149A priority Critical patent/GB664983A/en
Publication of GB664983A publication Critical patent/GB664983A/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)
  • Ceramic Products (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

664,983. Making rock drills &c. BERRY, B. E. Nov. 1, 1950 [Aug. 24, 1949], No. 22061/49. Classes 83 (ii) and 83 (iv). [Also in Group XXIII] Brazing; joints.-In a rock drill or the like in which the cutting edge 2a of the bit 3, integral with or separable from the drill stem, is formed by a hard metal insert 2 secured within a slot 4 in the bit, at least the two longitudinal side walls 2c of the insert are first faced with a firmly adherent lamina 5 of a metal or alloy of relatively high melting point, the assembly placed in the slot, and then secured in position by a bonding medium of relatively low-melting point, e.g. tinman's solder or a non-metallic adhesive. The laminµ may also cover the end walls 2b and/or the bottom 2d of the insert, they may be made of perforated or imperforate metal or gauze, and they may be brazed or welded to the insert, preferably in a hydrogen atmosphere. Alternatively, they may be provided by dipping in, or by spraying or electrodeposition of, molten metal.
GB2206149A 1949-08-24 1949-08-24 Improvements in and relating to tool tipping Expired GB664983A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2206149A GB664983A (en) 1949-08-24 1949-08-24 Improvements in and relating to tool tipping

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2206149A GB664983A (en) 1949-08-24 1949-08-24 Improvements in and relating to tool tipping

Publications (1)

Publication Number Publication Date
GB664983A true GB664983A (en) 1952-01-16

Family

ID=10173270

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2206149A Expired GB664983A (en) 1949-08-24 1949-08-24 Improvements in and relating to tool tipping

Country Status (1)

Country Link
GB (1) GB664983A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4330044A (en) * 1981-01-02 1982-05-18 Orr . . . Screw Machine Products, Inc. Drill bit
GB2127337A (en) * 1982-08-30 1984-04-11 Isotronics Inc Brazing metals of different thermal conductivity
US4480874A (en) * 1981-09-16 1984-11-06 Shaw Ray H Retainer device for auger, roof and the like type bits
US4688652A (en) * 1981-03-27 1987-08-25 Kennametal Inc. Braze fixtures for use in drilling tools
US4712626A (en) * 1981-04-02 1987-12-15 Mining Tools, Inc. Div. Of Smith California Retainer device for drill bit
US4764255A (en) * 1987-03-13 1988-08-16 Sandvik Ab Cemented carbide tool
US4817742A (en) * 1987-08-11 1989-04-04 Kennametal Inc. Butterfly-type shim having perforations in mid-section thereof and double sandwich braze joint produced therewith
US4821819A (en) * 1987-08-11 1989-04-18 Kennametal Inc. Annular shim for construction bit having multiple perforations for stress relief
EP0353214A2 (en) * 1988-07-28 1990-01-31 Sandvik Aktiebolag Drill bit with cemented carbide inserts
US5746281A (en) * 1993-06-14 1998-05-05 Oy Robit Rocktools Ltd. Method for mounting hard metal buttons in a drill bit
WO2004074635A1 (en) * 2003-02-19 2004-09-02 Sandvik Intellectual Property Ab A drill bit, a drill rod and a self drilling roof bolt
EP1891295A1 (en) * 2005-05-31 2008-02-27 Sandvik Intellectual Property AB Method for manufacturing a cutting pick

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4330044A (en) * 1981-01-02 1982-05-18 Orr . . . Screw Machine Products, Inc. Drill bit
US4688652A (en) * 1981-03-27 1987-08-25 Kennametal Inc. Braze fixtures for use in drilling tools
US4712626A (en) * 1981-04-02 1987-12-15 Mining Tools, Inc. Div. Of Smith California Retainer device for drill bit
US4480874A (en) * 1981-09-16 1984-11-06 Shaw Ray H Retainer device for auger, roof and the like type bits
GB2127337A (en) * 1982-08-30 1984-04-11 Isotronics Inc Brazing metals of different thermal conductivity
US4764255A (en) * 1987-03-13 1988-08-16 Sandvik Ab Cemented carbide tool
US4817742A (en) * 1987-08-11 1989-04-04 Kennametal Inc. Butterfly-type shim having perforations in mid-section thereof and double sandwich braze joint produced therewith
US4821819A (en) * 1987-08-11 1989-04-18 Kennametal Inc. Annular shim for construction bit having multiple perforations for stress relief
EP0353214A2 (en) * 1988-07-28 1990-01-31 Sandvik Aktiebolag Drill bit with cemented carbide inserts
EP0353214A3 (en) * 1988-07-28 1991-01-30 Sandvik Aktiebolag Drill bit with cemented carbide inserts
US5746281A (en) * 1993-06-14 1998-05-05 Oy Robit Rocktools Ltd. Method for mounting hard metal buttons in a drill bit
WO2004074635A1 (en) * 2003-02-19 2004-09-02 Sandvik Intellectual Property Ab A drill bit, a drill rod and a self drilling roof bolt
US8286736B2 (en) 2003-02-19 2012-10-16 Sandvik Intellectual Property Ab Drill bit, a drill rod and a self drilling roof bolt
EP1891295A1 (en) * 2005-05-31 2008-02-27 Sandvik Intellectual Property AB Method for manufacturing a cutting pick
EP1891295A4 (en) * 2005-05-31 2014-07-02 Sandvik Intellectual Property Method for manufacturing a cutting pick

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