| patent log n. Nautical A torpedo-shaped instrument with rotary fins that is dragged from the stern of a vessel to measure the speed or distance traveled. Also called screw log, taffrail log. |
patent log
n
(Transport / Nautical Terms) 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
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  patent log - a cigar-shaped log with rotary fins that measure the ship's speedlog - measuring instrument that consists of a float that trails from a ship by a knotted line in order to measure the ship's speed through the water |
How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content.
| ?Page tools | ||
|---|---|---|
|