GB1160409A - Core Drills. - Google Patents
Core Drills.Info
- Publication number
- GB1160409A GB1160409A GB4036667A GB4036667A GB1160409A GB 1160409 A GB1160409 A GB 1160409A GB 4036667 A GB4036667 A GB 4036667A GB 4036667 A GB4036667 A GB 4036667A GB 1160409 A GB1160409 A GB 1160409A
- Authority
- GB
- United Kingdom
- Prior art keywords
- assembly
- core
- spindle
- spring
- split
- 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
Links
- 238000005553 drilling Methods 0.000 abstract 4
- 239000012530 fluid Substances 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
Classifications
-
- 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
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
-
- 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
- E21B10/48—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
1,160,409. Boring earth &c. MINDRILL Ltd. 4 Sept., 1967 [28 Sept., 1966], No. 40366/67. Heading E1F. In a core drill the inner tube assembly 20 is suspended from a spindle 12 by a bearing 18, and the leading end of the assembly has a stepped portion 23 which, during drilling, enters 'as a running fit into a cylindrical bore 24 in the bit 3. The assembly is longitudinally split, or has a split metal lining, or has a non split transparent plastics lining. The spindle and assembly are held down by a spring 34 and during drilling are positioned as shown on the right hand side of the drawing. Drilling fluid passes along the outside of the assembly and is discharged through apertures 28 in the bit. When core fills the assembly, the spindle and assembly are forced to the position shown in the left hand side of the drawing, the ports 9 closing so that a rise in drilling fluid pressure indicates that the assembly is filled with core. On removal of the drill from the hole, the core is severed by a core breaker 26 comprising a longitudinally split frusto-conical steel spring. In a modification the spindle and assembly are held up by a spring instead of 'being held down by the spring 34. Specification 1160410 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU11787/66A AU401042B2 (en) | 1966-09-28 | Core drills |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1160409A true GB1160409A (en) | 1969-08-06 |
Family
ID=3702441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4036667A Expired GB1160409A (en) | 1966-09-28 | 1967-09-04 | Core Drills. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1160409A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997046790A1 (en) * | 1996-06-05 | 1997-12-11 | Dresser Industries Inc. | Core machine |
CN103603623A (en) * | 2013-11-29 | 2014-02-26 | 无锡中地地质装备有限公司 | Novel single-action mechanism |
CN108360975A (en) * | 2018-04-02 | 2018-08-03 | 镇江市建科工程质量检测中心有限公司 | A kind of core drill and corning machine suitable for bituminous paving |
CN108798574A (en) * | 2017-04-28 | 2018-11-13 | 中石化石油工程技术服务有限公司 | A kind of duplex bearing drilling extracting core suspension arrangement with shock-absorbing function |
CN111636838A (en) * | 2020-06-23 | 2020-09-08 | 江西有色地质勘查二队 | Double-partition self-locking three-layer pipe rope coring drilling tool for complex stratum |
-
1967
- 1967-09-04 GB GB4036667A patent/GB1160409A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997046790A1 (en) * | 1996-06-05 | 1997-12-11 | Dresser Industries Inc. | Core machine |
BE1010325A3 (en) * | 1996-06-05 | 1998-06-02 | Dresser Ind | Core. |
US6145604A (en) * | 1996-06-05 | 2000-11-14 | Dresser Industries, Inc. | Core Machine |
CN103603623A (en) * | 2013-11-29 | 2014-02-26 | 无锡中地地质装备有限公司 | Novel single-action mechanism |
CN108798574A (en) * | 2017-04-28 | 2018-11-13 | 中石化石油工程技术服务有限公司 | A kind of duplex bearing drilling extracting core suspension arrangement with shock-absorbing function |
CN108360975A (en) * | 2018-04-02 | 2018-08-03 | 镇江市建科工程质量检测中心有限公司 | A kind of core drill and corning machine suitable for bituminous paving |
CN108360975B (en) * | 2018-04-02 | 2024-04-09 | 镇江市建设工程质量检测中心有限公司 | Core drill and core machine suitable for bituminous paving |
CN111636838A (en) * | 2020-06-23 | 2020-09-08 | 江西有色地质勘查二队 | Double-partition self-locking three-layer pipe rope coring drilling tool for complex stratum |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1276249A (en) | Improvements in or relating to percussion drill bits | |
GB897893A (en) | Combination drill bit | |
GB1465185A (en) | Mining tools | |
GB1461005A (en) | Core bit for producing a core while drilling a bore hole | |
GB1241063A (en) | Directional drilling apparatus for oil wells | |
GB1188619A (en) | Improvements in or relating to core drilling | |
GB1366495A (en) | Eccentric drill tool | |
GB1263965A (en) | Improvements in or relating to core drilling apparatus for use in earth boring | |
GB995599A (en) | Improvements in or relating to a percussion bit | |
ATE86356T1 (en) | DRILL INJECTION ANCHOR. | |
GB985367A (en) | Improvements in and relating to apparatus and methods for drilling holes for examplein the ground | |
GB1108373A (en) | Drill bit | |
GB1218915A (en) | Expansible rotary drill bit with hydraulic lock | |
GB1142741A (en) | Earthboring drill bits | |
GB1250146A (en) | ||
GB1058100A (en) | Roller bits for borehole drilling | |
GB1160409A (en) | Core Drills. | |
GB963670A (en) | Improvements in or relating to deep drills | |
GB1071418A (en) | Improvements in rock-drilling tools | |
GB973790A (en) | Drill assembly | |
GB1097549A (en) | Percussion bit and chuck assembly and a percussion bit for incorporation in such an assembly | |
GB1119043A (en) | Percussion drill | |
GB1260350A (en) | Underground drilling motor or turbine | |
GB1218075A (en) | Drilling tool | |
GB1019027A (en) | Improvements in or relating to drill bits for rotary percussion drilling |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |