The solution came to me this morning when I was ratting thru some of my building supplies
and I found some old 1/4 inch thick phenolic board. (given to me by some guys who worked
at a 3 phase electric motor rebuilding shop) I'll take it over to a friend of mine's who has a
small modelers lathe and cut some 1" and 1 1/2" circles and groove them to hold the brake cable.
I'm thinking I could make a simple block and tackle to go between the brake cable housing
and the chain connection in the sketch. That could ampllify the effort on the brake pull (and
to the eye-candy appeal) with a Long Pull brake lever.
I'll revise the sketch later today so it will be clear what I'm talking about.
If it don't look Vintage, hitll look Appalachin !