Theater of Machines, Volume 3

back and forth, the iron shaft, through the aid of the two iron arms fastened to the timbers or handles, turns the millstone around, as can be seen in the accompanying figure No. 1.

But so that the millstone may be turned more easily and quickly, an iron cross is fastened below on the twice-cranked iron shaft. At each location on this cross, a lead counterweight is cast to a reasonable weight, as marked with Y, so that the millstone can be brought into and kept in a better momentum. Thus, through this simple hand-mill, a good daily requirement of grain can be ground with the help of two persons.

Explanation.

The strong frame of oak wood. A, E.
The handles. V, X.
The hopper, into which the grain is poured. B.
The millstone. Z.
The counterweights. Y.