GB1181428A - Improvements in or relating to Percussive Drill Bits - Google Patents

Improvements in or relating to Percussive Drill Bits

Info

Publication number
GB1181428A
GB1181428A GB5404667A GB5404667A GB1181428A GB 1181428 A GB1181428 A GB 1181428A GB 5404667 A GB5404667 A GB 5404667A GB 5404667 A GB5404667 A GB 5404667A GB 1181428 A GB1181428 A GB 1181428A
Authority
GB
United Kingdom
Prior art keywords
head
drill
shank
relating
nov
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
GB5404667A
Inventor
Reginald George Edward Rabett
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.)
Padley and Venables Ltd
Original Assignee
Padley and Venables 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 Padley and Venables Ltd filed Critical Padley and Venables Ltd
Priority to GB5404667A priority Critical patent/GB1181428A/en
Priority to BE724308D priority patent/BE724308A/xx
Priority to AT1146368A priority patent/AT296916B/en
Priority to DE19681811202 priority patent/DE1811202A1/en
Publication of GB1181428A publication Critical patent/GB1181428A/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
    • E21B10/36—Percussion drill bits
    • E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling fluids

Abstract

1,181,428. Boring earth &c. PADLEY & VENABLES Ltd. 13 Nov., 1968 [28 Nov., 1967], No. 54046/67. Heading E1F. A bit comprising a head 1 having cutting inserts 11a, 13a and a shank 2, has flushing fluid passages such as 16, 17 opening into the working surface 6 of the head and the shoulder 3 between the head and shank. The shank is adapted to be housed in the casing of a percussive "down-the-hole" drill 100 which is continuously or intermittently rotated. When positioned in the drill the shank is struck by the drill hammer 104, and the passages are connected to the exhaust ducts 107 of the drill, the air or water driving the drill thus acting as the flushing fluid. The rear outer part of the head may be formed by a rubber or nylon sleeve bonded to the rest of the head. Specification 995,599 is referred to.
GB5404667A 1967-11-28 1967-11-28 Improvements in or relating to Percussive Drill Bits Expired GB1181428A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB5404667A GB1181428A (en) 1967-11-28 1967-11-28 Improvements in or relating to Percussive Drill Bits
BE724308D BE724308A (en) 1967-11-28 1968-11-22
AT1146368A AT296916B (en) 1967-11-28 1968-11-26 Impact drill bit
DE19681811202 DE1811202A1 (en) 1967-11-28 1968-11-27 drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5404667A GB1181428A (en) 1967-11-28 1967-11-28 Improvements in or relating to Percussive Drill Bits

Publications (1)

Publication Number Publication Date
GB1181428A true GB1181428A (en) 1970-02-18

Family

ID=10469761

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5404667A Expired GB1181428A (en) 1967-11-28 1967-11-28 Improvements in or relating to Percussive Drill Bits

Country Status (4)

Country Link
AT (1) AT296916B (en)
BE (1) BE724308A (en)
DE (1) DE1811202A1 (en)
GB (1) GB1181428A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5494382A (en) * 1991-03-25 1996-02-27 Amic Industries Limited Drill bit
CN113167102A (en) * 2018-11-22 2021-07-23 敏康国际有限公司 Drill bit assembly for percussive drill tool
WO2021148597A1 (en) * 2020-01-22 2021-07-29 Sandvik Mining And Construction Tools Ab Drill bit with directed flushing holes

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2158628B1 (en) * 1971-11-26 1973-05-03 Waiiram-Hartmetall GmbH, 4300 Essen DRILL EDGE
FR2324857A1 (en) * 1975-09-19 1977-04-15 Foraco Forage Rationnel Const DRILL CROWN FITTING AND REVERSE CIRCULATION IMPLEMENTATION METHOD
DE2854461C2 (en) * 1978-12-16 1983-03-10 Wirth Maschinen- und Bohrgeräte-Fabrik GmbH, 5140 Erkelenz Countersink hammer
DE4200580A1 (en) * 1991-09-13 1993-03-18 Hausherr & Soehne Rudolf STONE DRILL BIT

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5494382A (en) * 1991-03-25 1996-02-27 Amic Industries Limited Drill bit
CN113167102A (en) * 2018-11-22 2021-07-23 敏康国际有限公司 Drill bit assembly for percussive drill tool
WO2021148597A1 (en) * 2020-01-22 2021-07-29 Sandvik Mining And Construction Tools Ab Drill bit with directed flushing holes

Also Published As

Publication number Publication date
AT296916B (en) 1972-03-10
BE724308A (en) 1969-05-02
DE1811202A1 (en) 1969-07-17

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