File:Americana 1920 Deep-Sea Exploration - dredging equipment.jpg
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| Description |
English: Chart of dredging equipment used by the deep-sea research ship U.S.S. Albatross. |
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| Date | published 1920 | ||
| Source | The Encyclopedia Americana, v. 8, 1920, p. 578. | ||
| Author | Unknown photographer | ||
| Permission (Reusing this file) |
|
Caption:
| Fig. | 1.—Showing net in position for lowering and towing: a, Tow line; b, Tripping arm; c, Tripping ring; d, Opening slings; e, Closing slings; f, Folding net ring; g, Closing weight; h, Closing messenger. (See also Fig. 3.) |
| Fig. | 2.—Showing net closed for heaving in. |
| Fig. | 3.—Closing messenger. |
| Fig. | 4.—Showing heavy tripping arm used on steamer Albatross, with 60-pound sounding shot attached as sinker for proper strain on wire tow line in deep-sea work. |
| i. Common sounding shot - 60 pounds. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:37, 29 March 2013 | | 601 × 1,071 (120 KB) | Bob Burkhardt | {{Information |Description={{en|Chart of dredging equipment used by the deep-sea research ship U.S.S. ''Albatross''.}} |Source=''The Encyclopedia Americana'', v. 8, 1920, p. 578. |Date=published 1920 |Author=unknown photographer |Permission={{PD-1923}}... |
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