GB1140820A - A drill steel centralizer - Google Patents
A drill steel centralizerInfo
- Publication number
- GB1140820A GB1140820A GB49183/67A GB4918367A GB1140820A GB 1140820 A GB1140820 A GB 1140820A GB 49183/67 A GB49183/67 A GB 49183/67A GB 4918367 A GB4918367 A GB 4918367A GB 1140820 A GB1140820 A GB 1140820A
- Authority
- GB
- United Kingdom
- Prior art keywords
- jaws
- cylinder
- drill steel
- valve
- fluid
- 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
- 229910000831 Steel Inorganic materials 0.000 title abstract 4
- 239000010959 steel Substances 0.000 title abstract 4
- 239000012530 fluid Substances 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 1
- 239000011435 rock 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/24—Guiding or centralising devices for drilling rods or pipes
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
1,140,820. Percussive tools. GARDNERDENVER CO. 30 Oct., 1967 [7 June, 1967], No. 49183/67. Heading B4C. A drill steel centralizer for a rotary-percussive type rock drill comprises a pair of jaws 122 pivotally mounted on a frame 50, 51, 52 and adapted to be opened or closed by means of a fluid-pressure operated piston-and-cylinder device 76,80. The piston 80 is fixed relative to the frame member 50 and the movable cylinder 76 is provided with arms 114 on which are formed projections 116 and cam surface 124 for contact respectively with lugs 118 and coacting cam surfaces 122 formed on the jaws. In operation, with the jaws open as shown in Fig. 4, pressurized fluid, such as air or liquid, is fed via a valve (130, Fig. 1a) and ports 110, 112, into the cylinder space 96 thereby raising the cylinder. The co-operating cam surfaces 120, 122 then cause the jaws to be firmly pressed together to thereby form a guide for the drill steel (34, Fig. 1). Upon reversing the position of the valve the cylinder is lowered to the position shown in Fig. 1. When the valve is in a mid position, the supply of fluid is cut off entirely thus causing the cylinder to rise under the light pressure of a spring 100 to thereby close the jaws. The jaws are formed with recesses 68 in order to grip a coupling-member (36, Fig. 2) when it is required to add a further length of drill steel.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US64418367A | 1967-06-07 | 1967-06-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1140820A true GB1140820A (en) | 1969-01-22 |
Family
ID=24583804
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB49183/67A Expired GB1140820A (en) | 1967-06-07 | 1967-10-30 | A drill steel centralizer |
Country Status (4)
Country | Link |
---|---|
US (1) | US3441323A (en) |
DE (1) | DE1752139B1 (en) |
GB (1) | GB1140820A (en) |
SE (1) | SE353762B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2210573A (en) * | 1987-10-06 | 1989-06-14 | Wurth Paul Sa | Mount for taphole piercing rod gripper |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3756669A (en) * | 1972-01-28 | 1973-09-04 | Lee Norse Co | Apparatus for holding a rotary tool |
USRE30071E (en) * | 1973-12-21 | 1979-08-14 | Atlas Copco Aktiebolag | Drill string element handling apparatus |
US4342487A (en) * | 1980-02-29 | 1982-08-03 | United States Steel Corporation | Automatic roof bolting drill retention apparatus |
FI62892C (en) * | 1980-07-02 | 1983-03-10 | Tampella Oy Ab | STYRNINGS- OCH CENTRERINGSANORDNING FOER BORRSTAONG |
US4449592A (en) * | 1981-03-23 | 1984-05-22 | Cooper Industries, Inc. | Automatic drill string section changer |
LU83336A1 (en) * | 1981-05-05 | 1983-03-24 | Wurth Paul Sa | DEVICE FOR CENTERING AND GUIDING A DRILLING ROD OF THE CASTING HOLE OF A TANK OVEN AND DRILLER PROVIDED WITH SUCH A DEVICE |
SE457817B (en) * | 1987-07-23 | 1989-01-30 | Atlas Copco Ab | BERGBORRIGG PROVIDED WITH DOUBLE FEEDBACK AND WITH AS A GRIP TAPE FOR A BORING BAR DESIGNED BORST |
US5556235A (en) * | 1993-10-20 | 1996-09-17 | Cannon Industries, Inc. | Rock bolter |
WO2001071148A2 (en) * | 2000-03-21 | 2001-09-27 | The Government Of The United States Of America, As Represented By The Secretary, Department Of Health And Human Services, Centers For Disease Control And Prevention | Guide for attachment to a roof bolter to allow for core drilling and method of coring |
US8141859B2 (en) * | 2007-11-02 | 2012-03-27 | The Boeing Company | Apparatus and method for effecting pin-to-shoulder tool separation for a friction stir welding pin tool |
WO2012021927A1 (en) * | 2010-08-16 | 2012-02-23 | Peter Sidney Rowling | Centraliser |
AU2014101201B4 (en) * | 2010-08-16 | 2015-02-12 | Teek Mining Solutions Pty Ltd | Centraliser |
US9259812B1 (en) * | 2013-06-26 | 2016-02-16 | The Boeing Company | Clamp assembly and method |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2734723A (en) * | 1956-02-14 | Ttnttfn | ||
US1822501A (en) * | 1930-11-22 | 1931-09-08 | Onsrud Machine Works Inc | Fluid acturated gripping and work-positioning means |
US2365680A (en) * | 1941-08-14 | 1944-12-26 | Sullivan Machinery Co | Rock drill |
US2665603A (en) * | 1950-01-20 | 1954-01-12 | Hydropress Inc | Testing machine clamping device |
US2747445A (en) * | 1951-09-06 | 1956-05-29 | Taylor Wilson Mfg Company | Pipe gripper actuated by guided yoke |
US3231318A (en) * | 1962-06-12 | 1966-01-25 | Atlas Copco Ab | Drill steel centralizers |
-
1967
- 1967-06-07 US US644183A patent/US3441323A/en not_active Expired - Lifetime
- 1967-10-30 GB GB49183/67A patent/GB1140820A/en not_active Expired
-
1968
- 1968-04-09 DE DE19681752139 patent/DE1752139B1/en active Pending
- 1968-05-13 SE SE06429/68A patent/SE353762B/xx unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2210573A (en) * | 1987-10-06 | 1989-06-14 | Wurth Paul Sa | Mount for taphole piercing rod gripper |
GB2210573B (en) * | 1987-10-06 | 1992-01-15 | Wurth Paul Sa | Taphole piercing tool |
Also Published As
Publication number | Publication date |
---|---|
SE353762B (en) | 1973-02-12 |
US3441323A (en) | 1969-04-29 |
DE1752139B1 (en) | 1970-08-06 |
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