Wow! That beautiful moving drawing is an invention of John Harrison, the famous British 18th century clockmaker.
He dedicated his whole life to produce a clock that would serve for sailors to give them the exact (and life saving) longitude at sea.
In 2000 BBC made a captivating TV drama series ( see link below ) after the book: The Longitude, by Dava Sobel. Fascinating series with Michael Gambon as John Harrison.
I've taken it all on tape and still put it on sometimes, because it is so fascinating. Try see it if you can. I did read the book too. Quite a story!.
(thanks grasshopper escapement!)

Harrison

book