GB972073A - Device for axial displacement of an elongated member - Google Patents
Device for axial displacement of an elongated memberInfo
- Publication number
- GB972073A GB972073A GB3416/61A GB341661A GB972073A GB 972073 A GB972073 A GB 972073A GB 3416/61 A GB3416/61 A GB 3416/61A GB 341661 A GB341661 A GB 341661A GB 972073 A GB972073 A GB 972073A
- Authority
- GB
- United Kingdom
- Prior art keywords
- clamping member
- rod
- valve
- grip
- housing
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
- F42D1/10—Feeding explosives in granular or slurry form; Feeding explosives by pneumatic or hydraulic pressure
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Earth Drilling (AREA)
- Jigs For Machine Tools (AREA)
- Eye Examination Apparatus (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
972,073. Ratchet gearing. NITROGLYCERIN A.B. Jan. 30, 1961 [Jan. 29, 1960], No. 3416/61. Heading F2Q. [Also in Division E1] Ratchet mechanism for the axial displacement of a rod 28, in connection with the loading of bore holes with explosive, comprises a fixed upper clamping member 22 and a movable lower clamping member 24 which is connected with the pistons 58 of a fluid-operated actuator, the clamping members 22, 24 each comprising a housing 34 having a wall 30 of resilient material which is adapted to grip the rod 28 when fluid under pressure is supplied to a resilient annular housing 26 located within the housing 34. Control is effected automatically by a spool valve 66 and limit valves 102, 104 located at the ends of the stroke of the movable clamping member 24. The arrangement is such that whilst the rod 28 is being held by the upper clamping member 22, the lower clamping member 24 slides along the rod 28 to its lower position where it actuates the lower limit valve 104 thereby causing the lower clamping member 24 to grip the rod 28 and move it upwardly, the grip of the upper clamping member 22 being released. Upon reaching its upper position, the lower clamping member 24 actuates the upper limit valve 106 thereby causing the upper clamping member 22 to grip the rod 28 and the lower clamping member 24 to release its grip, the cycle then being repeated. By means of a pressure reducing valve 131 a reduction in the clamping power of the clamping member 24 may be effected. Also the upper clamping member 22 may be rendered inoperative by closing a valve 133 and resetting a valve 130. Under these conditions, the pipe 28 is given a downward step-by-step movement, slipping occurring during the upward movement. The pipe 28 may be brought downwards quickly by opening valve 133 and resetting valves 74 and 130. In a modification, an upper clamping member 24 is rigid with a piston 58 which is reciprocable with a housing 48 which is mounted in the wall of a bore hole 10 by a container having a resilient outer wall to which fluid under pressure is applied. The clamping member 24 carries the pipe with it during its up stroke and allows a sliding movement in the opposite direction. Specification 878,799 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE89260 | 1960-01-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB972073A true GB972073A (en) | 1964-10-07 |
Family
ID=20257259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3416/61A Expired GB972073A (en) | 1960-01-29 | 1961-01-30 | Device for axial displacement of an elongated member |
Country Status (6)
Country | Link |
---|---|
US (1) | US3133469A (en) |
BE (1) | BE599599A (en) |
CH (1) | CH380621A (en) |
DE (1) | DE1155045B (en) |
ES (1) | ES264438A1 (en) |
GB (1) | GB972073A (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3188906A (en) * | 1963-05-16 | 1965-06-15 | Phillips Petroleum Co | Expansible means for loading a shot hole |
GB1438285A (en) * | 1972-08-25 | 1976-06-03 | Imp Metal Ind Kynoch Ltd | Clamping and transfer device for elongate articles |
IT978321B (en) * | 1973-01-22 | 1974-09-20 | Pirelli | SEALING DEVICE FOR HEATING FLUID VULCA NIZZATORI |
SE392645B (en) * | 1975-08-19 | 1977-04-04 | Nitro Nobel Ab | HOSE FEEDING DEVICE WHEN CHARGING THE DRILL |
US4128133A (en) * | 1976-05-07 | 1978-12-05 | The United States Of America As Represented By The Secretary Of The Interior | Torquer/thruster for flexible roofdrill |
US4273199A (en) * | 1978-10-06 | 1981-06-16 | Blanz John H | Torquer/thruster |
US4262756A (en) * | 1978-11-17 | 1981-04-21 | Blanz John H | Torquer/thruster |
ATE16832T1 (en) * | 1981-06-17 | 1985-12-15 | Davy Mckee Sheffield | PISTON CYLINDER UNIT. |
US4907491A (en) * | 1987-08-14 | 1990-03-13 | Filip Stanislaw F | Extended-travel actuator with clamps on rod and cylinder end for clamping central rod |
DE59710808D1 (en) * | 1997-06-25 | 2003-11-06 | Weatherford Lamb | Safety switching system for pipe clamping devices |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1586923A (en) * | 1924-02-18 | 1926-06-01 | Elvin E Townsend | Well-drilling equipment |
US1853856A (en) * | 1928-10-01 | 1932-04-12 | William S Gattrell | Well drilling equipment |
US2944403A (en) * | 1953-09-04 | 1960-07-12 | Raymond Int Inc | Hydraulic jacking assembly for marine platforms |
US2830788A (en) * | 1954-09-10 | 1958-04-15 | United States Steel Corp | Pushing and pulling apparatus |
US2748870A (en) * | 1954-11-29 | 1956-06-05 | Raymond B Basham | Line inserting device |
-
0
- BE BE599599D patent/BE599599A/xx unknown
-
1961
- 1961-01-26 US US85140A patent/US3133469A/en not_active Expired - Lifetime
- 1961-01-27 DE DEN19499A patent/DE1155045B/en active Pending
- 1961-01-28 ES ES0264438A patent/ES264438A1/en not_active Expired
- 1961-01-30 CH CH105661A patent/CH380621A/en unknown
- 1961-01-30 GB GB3416/61A patent/GB972073A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE599599A (en) | |
US3133469A (en) | 1964-05-19 |
CH380621A (en) | 1964-07-31 |
ES264438A1 (en) | 1961-07-01 |
DE1155045B (en) | 1963-09-26 |
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