Nikola Tesla U.S. Patent 1,119,732 - Apparatus for Transmitting Electrical Energy Patent Wrapper Page 17

) ) ) Canceled perc.. Canceled peric The lower end of the coil B -which, if desired, may be extended up to the terminal Dshould be somewhat below the upper most turn of coil A. This, I find, lessens the tendency of the charge to break out from the wire connecting both and to pass along the support F. When it is desirable for some reason or other to place the turns of the coil leading up to the terminal far apart, a conductor presenting everywhere, outwardly, a surface of a large radius of curvature, should be employed. In any case, however, whether the high-tension circuit leading up to the terminal is coiled or straight, instead of being itself of large curvature, it may be simply protected, on the outside, against the breaking out of the charge by plates or elements such as pp properly disposed.... Terminals or electrodes or large curvature are common, their behavior is well known and, in all probability, they are frequently supported on places of low electric density. But they are always in combination with opposite electrodes binding the charges and modifying their free distribution, for different ends and under conditions entirely disregarding and quite incapable of fulfilling, the cardinal requirements of my invention. For these reasons alone, neither in their particular functions, or purposes, or results, do they bear the slightest similarity to the constructive improvements above described. Moreover, high-potential effects of the character here chiefly contemplated have, to my best knowledge, only been produced by myself, and are obtainable only by devices of my own creation. 371-25 14 -9713