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Figure 9 Picture

Figure 9

Figure 9. Sands sounder invented by Commander Benjamin F. Sands, USN, while on duty with the U. S. Coast Survey in 1857. Compression of the spring actuated levers, which separated the symmetric halves of the weight which then fell to the bottom. A valve was actuated creating a void which allowed sediment to enter the tube. Pulling up the line reset the valve capturing the bottom sample

Photo Category: Oceanography - Historical instruments

Author: Y. Berard/Oceanographic Museum of Monaco/ NOAA

License: Public Domain Mark 1.0 (Public domain)
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Added On
18th October 2015
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