Nikola Tesla U.S. Patent 1,061,206 - Turbine Patent Wrapper Page 8

872 Sub. 56 9072 discovery above set forth, so far as it bears on the use of fluids as active agents, as distinguished from the applications of the same to the propulsion or compression of fluids; but, as I believe that a description of both uses of the principle will conduce to a fuller understanding of that particular invention with which the claims of the present specification are concerned, I shall proceed to describe both forms of apparatus which I have designed and found to be operative and efficient empodiments of the invention. Fig. 1 is a partial end view, and Fig. 2 a vertical cross section of a pump or compressor, while Figs. 3 and 4 represent, respectively, in corresponding views, a rotary engine or turbine, both machines. being constructed and adapted to be operated in accordance with the principles of my invention. Figs. 1 and 2 show a runner composed of a plurality of flat rigid disks 1 of a suitable diameter, keyed to a shaft 2 and held in position by a threaded nut 3, a shoulder 4 and washers 5 of the requisite thickness Each disk has a number of central openings 6, the solid portions between which form spokes 7, preferably curved as shown, for the purpose of reducing the loss of energy due to the impact of the fluid. This runner is mounted in a two-part volute casing & havstuffing boxes 9 and inlets 10 leading to its central portion. In addition, a gradually widening and rounding outlet 11 is provided formed with a flange for connection to a pipe as usual. The casing 8 rests upon a base 12, shown only in part, and supporting the bearings for the shaft 2, which being of ordinary construction are omitted from the drawings.