Hi all. One of my friends is restoring an 1840s farm house and found a piece of mystery machinery in the basement. My guess so far is a falling weight drive that turns a shaft in a tank (water pump? The house had a cistern and has radiator heating). But the odd thing is that the shaft has a gear and chain that looks like it turns a geared shaft or valve? Mounted on a pipe extending from the foundation wall. The gears line up when the tank is pushed against the back wall. There is a female threaded opening on the end of the cylinder against the wall. There is a pipe extending from the top. The shaft in front has a spool of cable, a gear, and a wheel (crank?). A stone with a bunch of free spinning wheels attached was found 10 feet away. I am stumped. Any ideas? All help appreciated! Thanks.