GB1199031A - Improvements in or relating to Cutter Bits and methods of Anchoring - Google Patents

Improvements in or relating to Cutter Bits and methods of Anchoring

Info

Publication number
GB1199031A
GB1199031A GB1406767A GB1406767A GB1199031A GB 1199031 A GB1199031 A GB 1199031A GB 1406767 A GB1406767 A GB 1406767A GB 1406767 A GB1406767 A GB 1406767A GB 1199031 A GB1199031 A GB 1199031A
Authority
GB
United Kingdom
Prior art keywords
rod
anchoring
relating
methods
cutter bits
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
GB1406767A
Inventor
Allan Richard Hilton
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.)
NAVENBY Ltd
Original Assignee
NAVENBY 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 claimed from GB2745367 external-priority
Application filed by NAVENBY Ltd filed Critical NAVENBY Ltd
Publication of GB1199031A publication Critical patent/GB1199031A/en
Priority to CY58471A priority Critical patent/CY584A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • E21B10/322—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools cutter shifted by fluid pressure
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00—Setting anchoring-bolts
    • E21D20/02—Setting anchoring-bolts with provisions for grouting
    • E21D20/021—Grouting with inorganic components, e.g. cement

Abstract

1,199,031. Boring earth &c. NAVENBY Ltd. 13 June, 1968 [28 March, 1967; 14 June. 1967; 9 Oct., 1967], Nos. 14067/67; 27453/67 and 46093/67. Heading E1F. An under reamer comprises an outer tubular member 1, a rod 5 slidable in the member and cutters 11 pivoted to the member, the rod being movable to cam the cutters outwardly for under reaming. The member may carry a cutter (2, fig. I not shown) supplied . with drilling fluid by oval ducts. The rod may be moved hydraulically or by pressure on the bottom of the hole.
GB1406767A 1967-06-14 1967-10-09 Improvements in or relating to Cutter Bits and methods of Anchoring Expired GB1199031A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CY58471A CY584A (en) 1967-06-14 1971-03-29 Improvements in or relating to cutter bits and methods of anchoring

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2745367 1967-06-14
GB4609367 1967-10-09

Publications (1)

Publication Number Publication Date
GB1199031A true GB1199031A (en) 1970-07-15

Family

ID=35240851

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1406767A Expired GB1199031A (en) 1967-06-14 1967-10-09 Improvements in or relating to Cutter Bits and methods of Anchoring

Country Status (1)

Country Link
GB (1) GB1199031A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0006656A1 (en) * 1978-06-19 1980-01-09 Stamicarbon B.V. Device for winning minerals via a borehole
GB2172315A (en) * 1985-01-04 1986-09-17 Lam Ming Luen Expandable-contractable drilling device
WO1996013648A1 (en) * 1994-10-31 1996-05-09 The Red Baron (Oil Tools Rental) Limited 2-stage underreamer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0006656A1 (en) * 1978-06-19 1980-01-09 Stamicarbon B.V. Device for winning minerals via a borehole
GB2172315A (en) * 1985-01-04 1986-09-17 Lam Ming Luen Expandable-contractable drilling device
WO1996013648A1 (en) * 1994-10-31 1996-05-09 The Red Baron (Oil Tools Rental) Limited 2-stage underreamer
GB2308608A (en) * 1994-10-31 1997-07-02 Red Baron The 2-stage underreamer
GB2308608B (en) * 1994-10-31 1998-11-18 Red Baron The 2-stage underreamer
US5853054A (en) * 1994-10-31 1998-12-29 Smith International, Inc. 2-Stage underreamer

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years