OCEAN DEPTHS
QUICK-FINDING DEVICE
(United Service.) (By Cable—Press Assn.—Copyright.)
LONDON, October 12.
The “Daily Mail” says that Giles Stedman, navigator of the “Leviathan” reports successful trans-Atlantic experiments with the fathometer, an apparatus for determining the depth in a fraction of a second, as compared With the five to fifteen minutes required for each sounding under the former system. A hammer fitted to the ship’s keel strikes a diaphragm, causing the emission of a series of soundwaves, which travel to the ocean bed, and return to the ship, and these actuate a hydrophone, producing a streak of light on a chart room indicator, which reveals the depth of water on a dial. The soundings can be taken without slowing down.
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Greymouth Evening Star, 15 October 1928, Page 6
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119OCEAN DEPTHS Greymouth Evening Star, 15 October 1928, Page 6
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