Nikola Tesla U.S. Patent 1,061,142 - Fluid Propulsion Patent Wrapper Page 20

820 8154 adhesive and viscous action, which consists in admitting the fluid to the central portion of a runner and causing it to flow, by the combined effect of the tangential and radial forces, in a spiral path with continuously increasing velocity towards the periphery of the runner, as set forth. massionne ale fêted tin 6. A fluid propelling or fluid propelled machine consisting in the combination of a shaft, a plurality of disks spaced apart and mounted on the same, and ports or passages of inlet and outlet adjacent to the center and periphery of said disks, as set forth. 7. A fluid motor or engine comprising in combination a plurality of spaced plane rotably mounted disks, and means for admitting or discharging the fluid at the center and periphery of said disks, as set forth 8. A fluid propelled machine comprising in combination a plurality of spaced plane rotably mounted disks, an enclosing casing and ports or passages of inlet and outlet at the center and periphery of the casing, as set forth. 9. A fluid motor or engine comprising in combination a runner composed of a plurality of disks hotably mounted with intervening spaces, and a casing enclosing the runner provided with ports or passages of inlet and outlet at the axis and periphery of the runner respectively, as set forth. 10. A fluid motor or engine comprising in combination a runner composed of a plurality of disks mounted at intervals and formed with openings near their centers, and means for admitting a liquid to or discharging it from the spaces between the disks and located respectively at the center and periphery of the same. -14