Vogel's Device
In 1847, A. F. Vogel, of Leipzig, invented what he called
"Hydrostatic General Mobile."
It was described at the time in a pamphlet, and its operation is sufficiently illustrated by the following annexed figure and explanation:
A water-wheel, A, B, C, D, raising the water by means of which it is to be operated. This is effected, he supposes, by the wheel acting at A, by the pressure of one of six pins D, on a vertical rod, attached to a horizontal beam, working on a centre, and its opposite end being secured to the pump-rod of the barrel M, N. The projector has an idea that by means of flaps, which close the cells of the wheel as they pass under rollers at B, while at C there is a similar contrivance to open the flaps and let out the water, and therefore by its retention on the descending side it will become more effective in turning the wheel.
