On 03/03/2019 17:06, harry wrote:
https://www.youtube.com/watch?v=C3p55J-VA5k

Not very easy to see how it worked, what with the time to get going and
the steam obscuring the view. Did the patent on the crank necessitate
the odd ratchet mechanism to turn reciprocal to rotary motion? (Probably
not as I don't suppose the Frogs would care about English patent law.)

--
Max Demian