A machine with which one can force water out of

low ground or a swamp.

The Second Figure.

Through the operation of this instrument depicted here, one can drain water from any damp ground, puddle, swamp, or other similar places with the help of only two persons, who turn the unequal wheel, marked with M., using two handles. The aforementioned wheel is noted with M. under a cover, which cover is made of metal or other such material, tightly secured all around with screws, and has only one opening into which the water goes; it is also, together with the pipe or pump marked with G., quite rigid and immobile. Now, when the water runs into the aforementioned cover, it is driven by the movement of the wheel M. and by the four boards that run around inside it—both backward and forward—into the pipe or pump G. Once the water enters the pump, it is forced by the following water, which the four small boards drive in without ceasing, so that it must flow out of the pipe and pour into the channel I, as can be clearly seen in the figure.

Interpretation of the letters in

this figure.

A. The cover of metal in which the wheel moves.