Nikola Tesla U.S. Patent 1,061,142 - Fluid Propulsion Patent Wrapper Page 30

830 A Sub. Er to contain all necessary information in this regard. It will be understood that the principles of construction and operation above set forth, are capable of embodiment in machines of the most widely different forms, In the and adapted for the greatest variety of purposes. above, I have sought to describe and explain only the generbelieve al and typical applications of the principle which I am the first to realize and turn to useful account. 4 What I claim is: The method of impartine energy to a fluid which consists in admitting it to the central portion of a rotatably arranged system and, by ite adhesive and viscous action upon glede the moving surfaces of geld em causing it to flow under. prces/in the combined fluence of radial and tangential forces, naturo spiral path towards the periphery of the system. 2. The method of imperting energy to a fluid, which consists in admitting it to the central portion of a rotor, and, by its adhesive a viscous action upon the moving surfaces of the rotor causink it to flow with continuously increasing velocity in a naturel spiral path towards the periphery of the same. 8163 1. same. 3. The method of imparting energy to a fluid, which consists in admitting it to the central portion of a rotatably arranged system of surfaces, and, y its adhesive and viscous action upon the moving surfaces, causing it to flow under the combined influence of radial and tangential forces in a natural spiral peth, with gradually increasing velocity along the surfaces towards the peripheral portion of the -72