For the point that I don't think they actually know anything.
I found out the "wool bar" is probably a distaff. Not really part of the wheel.
Now that I've been pouring over the plans to start sawing up my tree, I think the "wool carrier" is missing something, probably a lazy kate and the table is missing something probably for the spare bobbin or two.
I think I'm going to use these plans for the wheel and flyer idea and arrange them as a Saxony. The parts will fit in my lathe better and I'm more likely to be able to get the wood out of my old cherry tree.
Petroleum based knitter, removing that nasty oil from the ground one skein at a time.