Sweet job, Jim
So glad you took a pic of the unique Norge two-pulley pump. On a wringer, it's very unusual. Normally, a wheel butts up to the drive when you engage the pump. Most levers actually move the pump up or over or both. How neat, fun, and kinky that used panty hose can substitute.
Trying to figure out what the last operator was doing with the wringer. Can you, if you have time, explain more and show more regarding the 3rd roller & stopper?