GB665775A - Improvements in or relating to boring grabs for boring wells and the like - Google Patents
Improvements in or relating to boring grabs for boring wells and the likeInfo
- Publication number
- GB665775A GB665775A GB16207/49A GB1620749A GB665775A GB 665775 A GB665775 A GB 665775A GB 16207/49 A GB16207/49 A GB 16207/49A GB 1620749 A GB1620749 A GB 1620749A GB 665775 A GB665775 A GB 665775A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grab
- boring
- crank
- operated
- connecting rod
- 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
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression 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
- E21B11/00—Other drilling tools
- E21B11/04—Boring grabs
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
- H04J3/1676—Time-division multiplex with pulse-position, pulse-interval, or pulse-width modulation
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Earth Drilling (AREA)
Abstract
665,775. Grab-buckets. JUPP, A. W., and STOW & CO., Ltd., G. Sept. 27, 1949. [June 17, 1949] No. 16207/49. Class 78 (iv). The jaws of a single rope grab with an elongated body are closed by a connecting rod operated by a crank of small throw carried by a pulley round which the rope passes, and are opened by a spring which acts through the connecting rod. As shown in Fig. 1, the jaws 2 of a grab are closed by upward movement of a member 15 carried by a sliding rod 14 operated by a crank 11 on a pulley wheel 6 through a connecting rod 12. The pulley wheel 6 is operated by a hoisting rope 3 connected at one end to a compression spring 9 in a tube 7 and passing at the other end through the grab-head 4. A slot 17 in the grab body limits the movement of the crank 11. The grab is controlled by means which co-operate with a fixed crown as described in Specification 665,909.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB16207/49A GB665775A (en) | 1949-06-17 | 1949-06-17 | Improvements in or relating to boring grabs for boring wells and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB16207/49A GB665775A (en) | 1949-06-17 | 1949-06-17 | Improvements in or relating to boring grabs for boring wells and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB665775A true GB665775A (en) | 1952-01-30 |
Family
ID=10073092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16207/49A Expired GB665775A (en) | 1949-06-17 | 1949-06-17 | Improvements in or relating to boring grabs for boring wells and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB665775A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2828943A (en) * | 1953-11-17 | 1958-04-01 | Ricouard Henri Leon Georges | Boring apparatus |
| US3220248A (en) * | 1962-08-20 | 1965-11-30 | American Mach & Foundry | Ultrasonic inspection device |
| CN107975347A (en) * | 2017-12-18 | 2018-05-01 | 平煤建工集团特殊凿井工程有限公司 | A kind of manual holding card for the vertical handling of engineering driller drilling rod |
| CN111827914A (en) * | 2020-06-11 | 2020-10-27 | 中铁大桥局集团第五工程有限公司 | Combined fishing tool and fishing method for drill bit of inclined percussion drill in deepwater karst environment |
-
1949
- 1949-06-17 GB GB16207/49A patent/GB665775A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2828943A (en) * | 1953-11-17 | 1958-04-01 | Ricouard Henri Leon Georges | Boring apparatus |
| US3220248A (en) * | 1962-08-20 | 1965-11-30 | American Mach & Foundry | Ultrasonic inspection device |
| CN107975347A (en) * | 2017-12-18 | 2018-05-01 | 平煤建工集团特殊凿井工程有限公司 | A kind of manual holding card for the vertical handling of engineering driller drilling rod |
| CN107975347B (en) * | 2017-12-18 | 2023-12-08 | 平煤建工集团特殊凿井工程有限公司 | Manual holding clamp for vertical lifting of engineering driller drill rod |
| CN111827914A (en) * | 2020-06-11 | 2020-10-27 | 中铁大桥局集团第五工程有限公司 | Combined fishing tool and fishing method for drill bit of inclined percussion drill in deepwater karst environment |
| CN111827914B (en) * | 2020-06-11 | 2022-06-21 | 中铁大桥局集团第五工程有限公司 | Combined fishing tool and fishing method for deep water karst environment inclined percussion drill bit |
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