New Theater of Machines

The XXXIV. Figure.

A Grinding and Polishing Mill.

This mill is constructed in a different manner than the previous one; it can be driven by a horse, ox, or other animal in the event of a water shortage. A vertical wellbaum axle tree/shaft A is arranged with a horizontally lying kamrad cogwheel, just like in the previous mill. This wheel engages with its teeth into the staves of the shaft D at C, and thereby further drives both horizontally lying wheels G and H. These wheels, with their teeth, engage further into the staves of the two trillis lantern pinions L and I, and thus simultaneously rotate the grindstone N as well as the polishing stone K. The bolter-stick a device for sifting flour can be conveniently arranged at M.

Note: To facilitate the pulling and rotation of the stones, one can arrange a schwung-rad flywheel E on the vertical shaft D, and hang weights F upon its rotation. It would be best if one divides the circumference of such a wheel into three equal parts and hangs a weight stone on each third. It will then have a much better momentum than if it were divided into more parts. Experience with the machine itself will teach this; this should be observed not only in the present mill but also with all flywheels. Therefore, it is considered unnecessary to provide further explanation of this.

The XXXV. Figure.

A Grinding and Polishing Mill.

This mill is most conveniently arranged at a flowing body of water. The water wheel A, with its shaft, drives the stirnrad spur wheel B attached to it, which engages with its teeth into the spindles of the shaft D at C, thereby causing the stones E, I, L, and also

F, G, H, and K to rotate. This mill is sufficiently understood through the previous ones.

The XXXVI. Figure.

A Grinding Mill.

Since the present grinding mill is almost exactly the same as the previous one, it requires no special description. As one can see, the water wheel A with its shaft drives the kamrad B, which further engages into the spindles at C and drives the trillis, together with its shaft D, to which the grindstone is attached. Halfway at I, a water channel can be guided onto the grindstones for wetting, and arranged according to the local circumstances.

The XXXVII. Figure.

A Horse-Drawn Grinding Mill.

This is a beautiful invention of a grinding mill, discovered by Mr. Joh. Faulhaber, of blessed memory, in 1620. Its structure and arrangement are easily understood from the figure, in that the horse is harnessed to the axle of the rotating wheel A. Afterward, in pulling around, it causes the shaft D, as well as the diagonally lying and simultaneously rotating wheel C—along with a schwung-rad B arranged for excess power—and the horizontally lying kamrad E arranged above it, together with its trillis and grindstone, to rotate.

Note: This mill could also be driven by another movement than that of a horse, which will be easy for the skilled artist to do; therefore, it has been left to the reader to reflect upon the matter, and it could not be omitted without cause to mention it here.