Device for taking core samples from ocean and other submarine floors |
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| 申请号 | US43457674 | 申请日 | 1974-01-18 | 公开(公告)号 | US3874462A | 公开(公告)日 | 1975-04-01 |
| 申请人 | WESER DT197304272321291 AG; | 发明人 | HARMS HORST; LUCHT WILHELM; | ||||
| 摘要 | A core barrel for taking a sample core from a submarine floor is provided, and a guide tube for deploying and recovering the core barrel has a center passage through which the core barrel can move. The guide tube has an open end for entry and exit of the core barrel and its passage diverges conically in the direction towards this open end. Barrel-guiding elements are located within the passage for guiding the barrel. | ||||||
| 权利要求 | 1. In a device for taking core samples from ocean and other submarine floors, a combination comprising a core barrel for taking a core from a submarine floor; means for deploying and recovering said core barrel, said means comprising a guide tube having a center passage dimensioned for movement of said core barrel therethrough and provided with two end portions one of which is provided with an open end for entry and exit of said core barrel, said center passage having in the region of said open end a cross-section which conically diverges towards said open end, and barrel-guiding elements within said passage for guiding said core barrel during movement in said passage; and at least two shipboard-mounted deploying and recovering units for said guide tube, each connected with one of said end portions of the latter and having a shipboard-mounted first portion, and a second portion guided by and movable along said first portion between a first position in which said second portion projects at least in part overboard, and a second position in which said second portion is fully retracted onboard. 2. A combination as defined in claim 1, wherein each of said second portions has a free end section provided with tackle for connection with a respective one of said end portions of said guide tube, so that the latter may be swung between a substantially vertical and a substantially horizontal position by differential operation of the respective tackles. 3. In a device for taking core samples from ocean and other submarine floors, a combination comprising a core barrel for taking a core from a submarine floor; means for deploying and recovering said core barrel, said means comprising a guide tube having a center passage dimensioned for movement of said core barrel therethrough and provided with two end portions one of which is provided with an open end region for entry and exit of said core barrel, said center passage having in the region of said open end a cross-section which conically diverges towards said open end, and barrel-guiding elements within said passage for guiding said core barrel during movement in said passage; and at least two shipboard-mounted deploying and recovering units for said guide tube, each connected with one of said end portions of the latter, one of said units being connected with said region of said open end of said guide tube and operative to displace said guide tube from a substantially vertical to a substantially horizontal position and vice versa, and the other of said units being pivotably connected with said other end of said guide tube so as to support said guide tube in a substantially vertical orientation. |
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