Doug Nash Experiment With Seamless Shift Manual Gearbox

does anyone have any information on this? apparently late hot rodder doug nash experimented with a seamless or clutchless manual shifting gear ration but abandoned it or left it to be further developed for another day

If I'm not mistaken, there is an extensive discussion about seamless shifting buried in the archives, though I'm not certain it's relevant. Or even sensible.

Heh, Heh. If you find that thread you will be blessed with multiple interpretations of the word "seamless" and several pages of illuminating discussion theron.

https://forums.autos...less-gearboxes/ 

I imagine 'friend' autogyro added his unique insight to that one, I'm not touching it.

It's largely a crank arguing semantics from a position of engineering non-authority, but (and this is an internet Pro Tip), scroll past the troll and there's some good stuff from good authority. 

Operated by the crank (which isn't a lever).

And driving a beam axle.