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NOAA Photo Library Image - ship4209

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

Image ID: ship4209, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Photographer: Y. Berard
Credit: Oceanographic Museum of Monaco

Category: Oceanography/Historical instruments/

High Resolution Photo Available

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Last Updated:
November 10, 2017