This form of transmission was used on several cars, and of course remained hugely popular on the Ford T.
And a hydraulic clutch was available.
Why didn't these two pieces get combined to make HydraMatic? I've noted the fully automatic Sturtevant in 1905, but it used centrifugal clutches instead of hydraulic.
This isn't advanced, it's just cute. A steam-powered city delivery vehicle. It would have been better as an electric, with plenty of room for Edison Nickel-Iron batteries. The front could open up into a display stand for a mobile vendor.

Labels: 1901
The current icon shows Polistra using a Personal Equation Machine.