Theater of Machines, Part 3

...pushing the woods back and forth, the iron shaft, with the help of two iron arms fastened to the woods or handles, turns the millstone around, as can be seen in the accompanying figure Num. 1.

But so that the millstone may be driven around more easily and quickly, an iron cross is fastened below on the iron, twice-cranked shaft, onto which counterweights made of lead original: "Bley Gegengewicht", as marked with Y, are cast according to a fair weight, so that the millstone can be brought into a better swing and maintained. And thus, through this simple hand mill Handmühl hand mill, a good necessity of grain can be ground during the day with the help of two persons.

Explanation.

The strong frame of oak wood. AB.
The handles. VX.
The hopper Rumpff hopper, into which the grain is poured. B.
The millstone. Z.
The counterweights. Y.