Nikola Tesla U.S. Patent 1,119,732 - Apparatus for Transmitting Electrical Energy Patent Wrapper Page 73

] J T J J J رجمه سومی ...G G borne in mind, that the entire energy accumulated in the excited circuit, instead of requiring, as under normal working conditions, one quarter of the period or more for its transformation from static to kinetic form, may spend itself in an incomparably smaller interval of time, at a rate of many millions of horse power. The accident is apt to occur when, the transmitting circuit being strongly excited, the oscillations impressed upon it are rendered in ^ sudden, to be more nabel. scillations causeds any menner more or less suddenly, quicker than the free. 1 It is therefore advisable to begin the adjustments with feeble and somehhat slower impressed oscillations, strengthening and quickening them gradually, until the apparatus has been brought under perfect control. To increase the safety, I provide on a convenient place, preferably on terminal D, one of more elements or plates either of somewhat smaller radius of curvature or protruding more or less beyond the others (in which case they may be of larger radius of curvature) so that, should the pressure rise to a value, beyond which it is not desired to go, the powerful discharge may dart out there and lose itself harmlessly in the air. Such a plate, performing a function similar to that of a safety valve on a high pressure reservoir, is indicated at v. Still further extending the principles underlying my invention, special reference is made to coil B and conductor B¹. The latter is in the form of a cylinder with smooth or polished surface of a redius much larger than that of the half spherical elements_pp, and widens out at the bottom into a hood a, which should be slotted to avoid loss by eddy currents and the purpose of which will be clear from the foregoing. The coil B is cun on a frame or dram Dl of insulating material, with its turna close together. namely, discovered that when so wound the effect of I have 75 371-71 (6) 1 769