Definitions
There is 1 meaning of the phrase
Patent Log.
Patent Log - as a noun
A cigar-shaped log with rotary fins that measure the ship's speed
Synonyms (Exact Relations)
screw logtaffrail logExample Sentences
"The patent log was used to measure the speed and distance traveled by a ship."
"The captain referred to the patent log to determine the ship's progress on the journey."
"The patent log provided accurate records of the ship's course and speed."
"The sailor recorded the ship's velocity in the patent log every hour."
"The patent log was an essential navigational instrument on the sailing vessel."