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ZW1091A1 - Button sharpening - Google Patents

Button sharpening

Info

Publication number
ZW1091A1
ZW1091A1 ZW10/91A ZW1091A ZW1091A1 ZW 1091 A1 ZW1091 A1 ZW 1091A1 ZW 10/91 A ZW10/91 A ZW 10/91A ZW 1091 A ZW1091 A ZW 1091A ZW 1091 A1 ZW1091 A1 ZW 1091A1
Authority
ZW
Zimbabwe
Prior art keywords
sharpening
button
button sharpening
Prior art date
Application number
ZW10/91A
Inventor
Stanley Williams David
Original Assignee
Boart Int Ltd
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 Boart Int Ltd filed Critical Boart Int Ltd
Publication of ZW1091A1 publication Critical patent/ZW1091A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
    • B24B3/33—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills of drills for stone
    • 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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/50—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type
    • E21B10/52—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type with chisel- or button-type inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
ZW10/91A 1990-02-14 1991-02-11 Button sharpening ZW1091A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA901118 1990-02-14
ZA906616 1990-08-21

Publications (1)

Publication Number Publication Date
ZW1091A1 true ZW1091A1 (en) 1991-05-08

Family

ID=67396391

Family Applications (1)

Application Number Title Priority Date Filing Date
ZW10/91A ZW1091A1 (en) 1990-02-14 1991-02-11 Button sharpening

Country Status (12)

Country Link
KR (1) KR910015368A (en)
AU (1) AU7099791A (en)
CA (1) CA2036284A1 (en)
DE (1) DE4104551A1 (en)
FI (1) FI910706A7 (en)
FR (1) FR2658106A1 (en)
GB (1) GB2240940A (en)
IE (1) IE910433A1 (en)
IT (1) IT1244731B (en)
NO (1) NO910583L (en)
SE (1) SE9100404L (en)
ZW (1) ZW1091A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE463754B (en) * 1989-05-24 1991-01-21 Inovac Ab DEVICE FOR HANDHALLEN GRINDING MACHINE FOR GRIPPING CUTTER DRILLS

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3442342A (en) * 1967-07-06 1969-05-06 Hughes Tool Co Specially shaped inserts for compact rock bits,and rolling cutters and rock bits using such inserts
US3830020A (en) * 1969-10-22 1974-08-20 S Gomi Grinding diamond wheel, and method of making same
US4254840A (en) * 1978-10-05 1981-03-10 Reed Tool Company Drill bit insert
SE434356B (en) * 1981-11-24 1984-07-23 Finsliparna Ab Arrangement for grinding of drill bits
FI67500C (en) * 1983-09-12 1985-04-10 Airam Ab Oy ANORDNING FOER VAESSNING AV STIFTKRONA FOER BERGSBORR
GB2193456B (en) * 1986-07-25 1990-06-06 Boart Int Ltd Restoration of drill buttons
US4722405A (en) * 1986-10-01 1988-02-02 Dresser Industries, Inc. Wear compensating rock bit insert

Also Published As

Publication number Publication date
SE9100404L (en) 1991-08-15
ITMI910364A1 (en) 1992-08-13
IT1244731B (en) 1994-08-08
DE4104551A1 (en) 1991-08-22
FI910706A0 (en) 1991-02-13
ITMI910364A0 (en) 1991-02-13
FI910706L (en) 1991-08-15
SE9100404D0 (en) 1991-02-11
GB2240940A (en) 1991-08-21
AU7099791A (en) 1991-08-15
KR910015368A (en) 1991-09-30
FI910706A7 (en) 1991-08-15
CA2036284A1 (en) 1991-08-15
NO910583D0 (en) 1991-02-13
FR2658106A1 (en) 1991-08-16
IE910433A1 (en) 1991-09-11
NO910583L (en) 1991-08-15
GB9102944D0 (en) 1991-03-27

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