ss from Fowey rocks were measured known on the vessel at all times. ‘This meter is used to de- with this meter. KIG. 13.—LORD KELVIN DEPTH RECORDER FIG. I4.—SIGSBEE DEEP-SEA SOUNDING MACHINE. b 1G} . termine surface currents with only a slight difference in the ar- Bliss Taffrail Log. ‘The… … designed to measure the deeper currents of the ocean. It differs Harbor and Channel Sweep. Fig. 12. The suspended bar is from the Ritchie and Haskell meter in principle.» At whatever about 50 feet long and is lowered under the vessel to any desired depth the observation is made the meter is locked…
Shipbuilding -- Periodicals · Shipbuilding industry -- Periodicals
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