GB551573A - Improvements in or relating to means for removing detachable drill bits from drill ro - Google Patents
Improvements in or relating to means for removing detachable drill bits from drill roInfo
- Publication number
- GB551573A GB551573A GB16245/41A GB1624541A GB551573A GB 551573 A GB551573 A GB 551573A GB 16245/41 A GB16245/41 A GB 16245/41A GB 1624541 A GB1624541 A GB 1624541A GB 551573 A GB551573 A GB 551573A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drill
- bits
- drill rod
- craig
- sack
- 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
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 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
- E21B19/18—Connecting or disconnecting drill bit and drilling pipe
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
551,573. Removing drills from shafts. CRAIG, E., and CRAIG, R. Dec. 16, 1941, No. 16245. Convention date, Dec. 13, 1940. [Class 61 (iii)] A device for removing drill bits from drill rods comprises a body 10 carried by a pair of jaws for clamping it, for example to a column A and diametrically slotted at 11 to receive the drill rod B and recessed or undercut at 12, 13 to interlock with the drill rod on rocking the latter about the axis of the body, the bit C being removed by impact with the edge of the recessed portion on longitudinal displacement of the drill rod therein. In the modification shown in Figs. 16 and 17 the device is provided with a sack 33 attachable by hooks 31 to receive the detached bits and with arcuate rubber strips 34, 35, the latter flanged at 35<SP>1</SP> to form an arc-shaped slot confining the detached bits and guiding them into the sack.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US551573XA | 1940-12-13 | 1940-12-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB551573A true GB551573A (en) | 1943-03-01 |
Family
ID=21995994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16245/41A Expired GB551573A (en) | 1940-12-13 | 1941-12-16 | Improvements in or relating to means for removing detachable drill bits from drill ro |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB551573A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2612052A (en) * | 1950-11-01 | 1952-09-30 | Charles B Gray | Mechanical movement |
| US2664621A (en) * | 1950-05-23 | 1954-01-05 | Friedrich Heinrich Flottmann F | Drill bit remover |
-
1941
- 1941-12-16 GB GB16245/41A patent/GB551573A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2664621A (en) * | 1950-05-23 | 1954-01-05 | Friedrich Heinrich Flottmann F | Drill bit remover |
| US2612052A (en) * | 1950-11-01 | 1952-09-30 | Charles B Gray | Mechanical movement |
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