GB707171A - Improvements in rotary drilling crowns - Google Patents

Improvements in rotary drilling crowns

Info

Publication number
GB707171A
GB707171A GB1935951A GB1935951A GB707171A GB 707171 A GB707171 A GB 707171A GB 1935951 A GB1935951 A GB 1935951A GB 1935951 A GB1935951 A GB 1935951A GB 707171 A GB707171 A GB 707171A
Authority
GB
United Kingdom
Prior art keywords
crown
rotary drilling
improvements
diamonds
coring
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
GB1935951A
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.)
Boart International Ltd
Original Assignee
Boart International 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
Priority to ZA707171X priority Critical
Application filed by Boart International Ltd filed Critical Boart International Ltd
Publication of GB707171A publication Critical patent/GB707171A/en
Application status is Expired legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP 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

Abstract

707,171. Diamond tools. BOART PRODUCTS, SOUTH AFRICA, Ltd. Aug. 16, 1951 [Sept. 15, 1950], No. 19359/51. Class 124 In a rotary drilling coring or non-coring crown in which diamonds project from the surfaces of the crown, the areas of the surface between the diamonds at the cutting face, and possibly also the circumferential wall, are provided with a hard wear-resisting skin of tungsten carbide or other hard metal bonded to the matrix of the crown.
GB1935951A 1950-09-15 1951-08-16 Improvements in rotary drilling crowns Expired GB707171A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ZA707171X 1950-09-15

Publications (1)

Publication Number Publication Date
GB707171A true GB707171A (en) 1954-04-14

Family

ID=25562883

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1935951A Expired GB707171A (en) 1950-09-15 1951-08-16 Improvements in rotary drilling crowns

Country Status (1)

Country Link
GB (1) GB707171A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3461983A (en) * 1967-06-28 1969-08-19 Dresser Ind Cutting tool having hard insert in hole surrounded by hard facing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3461983A (en) * 1967-06-28 1969-08-19 Dresser Ind Cutting tool having hard insert in hole surrounded by hard facing

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