FR855000A - Centering device for drill shanks - Google Patents
Centering device for drill shanksInfo
- Publication number
- FR855000A FR855000A FR855000DA FR855000A FR 855000 A FR855000 A FR 855000A FR 855000D A FR855000D A FR 855000DA FR 855000 A FR855000 A FR 855000A
- Authority
- FR
- France
- Prior art keywords
- centering device
- drill shanks
- shanks
- drill
- centering
- 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
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/44—Clasp, clip, support-clamp, or required component thereof
- Y10T24/44641—Clasp, clip, support-clamp, or required component thereof having gripping member formed from, biased by, or mounted on resilient member
- Y10T24/44949—Clasp, clip, support-clamp, or required component thereof having gripping member formed from, biased by, or mounted on resilient member including resilient biasing wire
- Y10T24/44957—Coiled wire
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US209162A US2214789A (en) | 1938-05-21 | 1938-05-21 | Centralizer for drill steels |
Publications (1)
Publication Number | Publication Date |
---|---|
FR855000A true FR855000A (en) | 1940-04-29 |
Family
ID=22777615
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR855000D Expired FR855000A (en) | 1938-05-21 | 1939-05-20 | Centering device for drill shanks |
Country Status (3)
Country | Link |
---|---|
US (1) | US2214789A (en) |
FR (1) | FR855000A (en) |
GB (1) | GB529010A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2532358A1 (en) * | 1982-08-31 | 1984-03-02 | Tampella Oy Ab | DRILL GUIDE FOR EXTENSION ROD DRILLING APPARATUS |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2734723A (en) * | 1956-02-14 | Ttnttfn | ||
US7814994B2 (en) | 2005-03-02 | 2010-10-19 | Atlas Copco Rock Drills Ab | Drill rod support, and drill rod support half |
CN106761494B (en) * | 2017-03-14 | 2018-10-02 | 中铁十七局集团有限公司 | A kind of guider and method for tunnel pre-grouting armature boring |
-
1938
- 1938-05-21 US US209162A patent/US2214789A/en not_active Expired - Lifetime
-
1939
- 1939-05-19 GB GB14974/39A patent/GB529010A/en not_active Expired
- 1939-05-20 FR FR855000D patent/FR855000A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2532358A1 (en) * | 1982-08-31 | 1984-03-02 | Tampella Oy Ab | DRILL GUIDE FOR EXTENSION ROD DRILLING APPARATUS |
Also Published As
Publication number | Publication date |
---|---|
US2214789A (en) | 1940-09-17 |
GB529010A (en) | 1940-11-12 |
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