PATENT LOG Definition & Meaning

patent log

[ pat-nt lawg, log ]

Phonetic (Standard)IPA

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.

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 meter Compare chip log

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�y��vlog History and Origins

Origin of patent log¹

First recorded in 1875–80

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Example Sentences

Examples have not been reviewed.

By the distance we had run, as shown by the patent log and compared with the chart, there had been a current against us of more than a knot an hour.

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Whether you'll ever get there with the compass and the patent log is another matter, though, of course, if you go on long enough, you'll fetch some part of America.

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Comparing the distance run by observation and by patent log, there was a difference of sixteen miles and a third.

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"Well, come and see me set the patent log," said Captain Whitby.

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To see him skipping along through green sea water in his dress-pumps, to look at the patent log, was a revelation of human improvidence.

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