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patent log

[ pat-nt lawg, log ]
/ ˈpæt nt ˌlɔg, ˌlɒg /
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noun Nautical.
any of various devices for determining the speed of a ship by means of a vaned rotor streamed at the end of a logline upon which it exerts a torsion transmitted to a registering device on board.
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Also called screw log [skroo-lawg, log]. /ˈskru ˌlɔg, ˌlɒg/.

Origin of patent log

First recorded in 1875–80
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use patent log in a sentence

British Dictionary definitions for patent log

patent log

noun
nautical any of several mechanical devices for measuring the speed of a vessel and the distance travelled, consisting typically of a trailing rotor that registers its rotations on a meterCompare chip log
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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