Nikola Tesla U.S. Patent 1,061,206 - Turbine Patent Wrapper Page 19

V V # V.... 9083 in natural curved paths from the peripheral towards the central portion of a rotable system, as set forth. 9. The method of deriving energy from a fluid under pressure which consists in admitting it to the peripheral portion of a rotably arranged system, causing it to flow towards the axis of rotation, under the combined influence of radial and tangential forces, in a curved path with gradually diminishing velocity approximating that of the adjacent parts of the system, and propelling the same by the viscous and adhesive action thereon of the fluid, as set forth. 10 The method of converting potential into kinetic energy which consists in admitting a fluid under pressure to the peripheral portion of a rotor, causing it to flow towards the axis of the same with gr srequally diminishing velocity in a natural spiral path under the combined influence of radial and tangential forces, and propelling the rotor by the viscous and adhesive action thereon of the fluid, as set forth. 11. The method of energy transformation which consists in admitting a fluid under pressure to the peripheral portion of noy, tow towards the axis of rotation, a rotor, causing it to low. under the combined influence of radial and tangential forces, in natural spirals with a velocity continuously diminishing and approximating that of the adjacent parts of the rotor, and propelling the rotor by the viscous and adhesive action thereon of the fluid, as set forth. 12. The art of transmitting and transforming energy which consists in imparting motion/to a fluid, directing it upon the peripheral portion of a rotor, causing it to flow towards the -15883