FIGURE IX.

Although the artifice of this ninth figure appears clear, one must still very carefully consider its construction, which serves as a grain mill. The river F is used as the motor, which, in running, strikes the wheel with the paddles I K L M N H mounted on the small gear G. While these are struck by the water they remain flat, and as the wheel turns against the water they also turn, yielding to the impetus of the current. Always turning on one side above the pivot or axle, this moves with it the toothed wheel O, which, striking the small gear P, turns the millstone under the hopper Q where the wheat is placed. The entire mechanism is supported by a wooden frame A B C D, as is clearly seen, etc.

A faint, ghosted illustration of a mechanical water mill mechanism is visible in the background of the lower half of the page, showing a horizontal axle with gears and a hopper.