The author died in 1911, so this work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 100 years or fewer.
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
Captions
Chinese Windlass pays rope off smaller drum but picks up more rope on larger drum. This gives more power from crank handle as greater ratio of input to output. This is fore-runner of modern differential gearing.