Nikola Tesla Patents
226 movement of the same with the desired rapidity, by the necèssity for effecting the control from a point which is practically fixed, and by many well-understood drawbacks inseparably connected with such a crude system. The plan which I have perfected involves none of these objections, for I am enabled by the use of my invention to employ any means of propulsion, to impart to the moving body or vessel the highest possible speed, to trol the operation of its machinery and to direct its movements from either a fixed point or from a body moving and changing its direction however rapidly, and to maintain this control over great distances, without any artificial connections between the vessel and the apparatus governing its movements, and without such restrictions as these must necessarily impose. In a broad sense, then, my invention differs from all those systems which provide for the control of the mechanism carried by a moving object and governing its motion, in that require no intermediate wires, cables or other form of electrical or mechanical connection with the object save the natural media in space. I accomplish, nevertheless, similar results and in a much more practicable manner by producing waves, impulses or radiations. which are received through the earth, water or atmosphere by suitable apparatus on the moving body and cause the desired actions, so long as the body remains within the active region or effective range of such currents, waves, impulses or radiations! (2) con1
