Most of the patents prior to 1836 were lost in the Dec. 1836 fire. Only about 2,000 of the almost 10,000 documents were recovered. Little is known about this patent. There are no patent drawings available. This patent is in the database for reference only.

Journal of the Franklin Institute Vol. 6 1830 pgs. 28-29

For a Rolling Valve for supplying the boilers of steam engines with water; Elam Young, Tate township, Clermont County, Ohio, October 10.

The rolling valve is in form like the key, or plug, of a common cock, fitted into a socket, and standing horizontally in a reservoir of water, from which the boiler is to be supplied.

The valve, or key, has two chambers formed in it, at 90 degrees apart; these are filled with water alternately, through perforations in the socket, the valve is worked backwards and forwards by means of a pitman from a crank, which carries the water down to an opening in the lower part of the socket, communicating with the boiler. It is intended that the valve should be self-regulating, by causing the chambers to contain the proper quantity of water for the generation of steam.

The claim is “the supplying the boilers and generators of steam engines by means of a rolling valve.”

The great objection to valves of this description is their wear; the four-way cork, and rotary, or vibrating valves, acting upon this principle, are necessarily subject to this objection, but for which, a valve such as that now described, would be preferable to a forcing pump. The idea of such a valve is not new; we cannot immediately turn to any printed evidence of this, but it has been familiar, and matter of frequent conversation with us for years.

(To be filled in.)