GB899752A - Improvements in or relating to earth boring equipment - Google Patents
Improvements in or relating to earth boring equipmentInfo
- Publication number
- GB899752A GB899752A GB17182/59A GB1718259A GB899752A GB 899752 A GB899752 A GB 899752A GB 17182/59 A GB17182/59 A GB 17182/59A GB 1718259 A GB1718259 A GB 1718259A GB 899752 A GB899752 A GB 899752A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ring
- members
- clockwise
- wedges
- wedge
- 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
- 241001247986 Calotropis procera Species 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
- E21B19/10—Slips; Spiders ; Catching devices
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
899,752. Boring earth &c. DOWTY ROTOL Ltd. May 18, 1960 [May 20, 1959], No. 17182/59. Class 85. A slips mechanism comprises wedges 12 having backing members 9 surrounded by a retaining ring 15 allowing radial movement of the wedges. The members 9 slide in guideways 8 of a base-plate 5. Rotation of the ring clockwise by a jack 18, 22 causes projections 25 to engage projections 26 on the members 9 to force the wedges inwardly against a spring 27. Links 29 joined at 31 to members 9 and having slots 32 engaging pins 33 on the ring are radial when the projections 25, 26 are just in register as the ring is turned anti-clockwise and hold the members 9 against the spring. Further anti-clockwise movement of the ring releases the members 9. Each wedge is connected to a member 9 by a lever 34 having an outer arm 42, co-operating with a cam track 43 on the ring to apply a downward force to the wedge as the ring is turned clockwise. Rubber bushes in which the pins 35, 38 are mounted are pre-loaded to provide an upward force on each wedge to disengage the wedges when the ring is turned fully anti-clockwise and the weight is removed from the drill pipes. Specifications 875,127 and 894,493 are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB17182/59A GB899752A (en) | 1959-05-20 | 1959-05-20 | Improvements in or relating to earth boring equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB17182/59A GB899752A (en) | 1959-05-20 | 1959-05-20 | Improvements in or relating to earth boring equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
GB899752A true GB899752A (en) | 1962-06-27 |
Family
ID=10090697
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB17182/59A Expired GB899752A (en) | 1959-05-20 | 1959-05-20 | Improvements in or relating to earth boring equipment |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB899752A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5127696A (en) * | 1990-12-19 | 1992-07-07 | Shimadzu Corporation | Wedge type grip |
NO331239B1 (en) * | 2008-01-17 | 2011-11-07 | Tts Energy As | Clamping device for hanging a drilling or feeding rope string in a drill floor |
CN110685618A (en) * | 2019-11-14 | 2020-01-14 | 青岛亨利达钻机有限公司 | Chuck plate assembly device of underground drill rig for mining |
-
1959
- 1959-05-20 GB GB17182/59A patent/GB899752A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5127696A (en) * | 1990-12-19 | 1992-07-07 | Shimadzu Corporation | Wedge type grip |
NO331239B1 (en) * | 2008-01-17 | 2011-11-07 | Tts Energy As | Clamping device for hanging a drilling or feeding rope string in a drill floor |
US8678112B2 (en) | 2008-01-17 | 2014-03-25 | Per A. Vatne | Slip device for suspending a drill or casing string in a drill floor |
US9708868B2 (en) | 2008-01-17 | 2017-07-18 | Tts Sense As | Slip device for suspending a drill or casing string |
CN110685618A (en) * | 2019-11-14 | 2020-01-14 | 青岛亨利达钻机有限公司 | Chuck plate assembly device of underground drill rig for mining |
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