GB114484A - Improvements in Fishing Tools for use in Well Boring. - Google Patents
Improvements in Fishing Tools for use in Well Boring.Info
- Publication number
- GB114484A GB114484A GB502717A GB502717A GB114484A GB 114484 A GB114484 A GB 114484A GB 502717 A GB502717 A GB 502717A GB 502717 A GB502717 A GB 502717A GB 114484 A GB114484 A GB 114484A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spring
- box
- ring
- rods
- mandrel
- 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
- 229910000639 Spring steel Inorganic materials 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
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
- E21B31/18—Grappling tools, e.g. tongs or grabs gripping externally, e.g. overshot
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Marine Sciences & Fisheries (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
114,484. Cairns, H. S. April 10, 1917. Grab-forks.-A fishing tool for use in well-boring comprises jaws K pivoted to a mandrel B which is slidably connected to a box A fixed to the drill rods, a ring D carried by the mandrel and adapted to engage trip rods C, which may be of spring steel or pivoted and spring-pressed, and a sliding member H secured to the trip rods and adapted, when the conical end of the box A disengages the trip rods from the ring D, to be pressed downwards by a spring G and close the jaws K through the medium of slots E and bolts. To enable the tool to penetrate debris &c. before being operated, a further spring may be provided between the ring D and the box A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB502717A GB114484A (en) | 1917-04-10 | 1917-04-10 | Improvements in Fishing Tools for use in Well Boring. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB502717A GB114484A (en) | 1917-04-10 | 1917-04-10 | Improvements in Fishing Tools for use in Well Boring. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB114484A true GB114484A (en) | 1918-04-10 |
Family
ID=32481759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB502717A Expired GB114484A (en) | 1917-04-10 | 1917-04-10 | Improvements in Fishing Tools for use in Well Boring. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB114484A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822246A (en) * | 2016-05-10 | 2016-08-03 | 惠州市公路管理局 | Opening-closing type salvaging device for drilled pile drill bits |
| CN110331954A (en) * | 2019-06-05 | 2019-10-15 | 张希录 | A kind of throw in catcher and its application method |
-
1917
- 1917-04-10 GB GB502717A patent/GB114484A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822246A (en) * | 2016-05-10 | 2016-08-03 | 惠州市公路管理局 | Opening-closing type salvaging device for drilled pile drill bits |
| CN105822246B (en) * | 2016-05-10 | 2018-02-23 | 惠州市公路管理局 | Open-close type drilled pile drill bit fishing device |
| CN110331954A (en) * | 2019-06-05 | 2019-10-15 | 张希录 | A kind of throw in catcher and its application method |
| CN110331954B (en) * | 2019-06-05 | 2021-11-09 | 张希录 | Throwing and fishing device and using method thereof |
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