The U.S. Patents of Nikola Tesla

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June 17,1896. In the accompanying drawings, annexed in illustration the manner which im­ provement maybe carried into practice, Figure view, partly vertical section, 50 condenserconstructed accordance with the invention. Above the conducting solution each the receptacles is poured layer oil other insulating liquid, which serves prevent access air to the highly-charged armatures. part vertical sec­ tion modified form such condenser. According present invention em­ ploy electrolyte, or, general, conduct­ ing liquid lieu solid, the material for the armatures the condenser, under 30 conditions more fully hereinafter described, whereby air gas will practically pre­ vented from exercising upon the condenser or the more active portions the same the detrimental effects present such devices as 35 heretofore made. Within this re­ ceptacle smaller jar vessel insu­ lating material, containing conducting-elec­ trode supported the cover through which passes suitable terminal which 60 maybe incased insulating-plug The spaces within the jars orreceptacles are nearly filled with conducting liquid such a saline solution, the two bodies such liquid in the inner and outer receptacles constitut- 65 ing the condenser-armatures. SPECIFICATION form ing part Tetters atent No. such in­ stances, order secure the substantial benefits the improvement above described, I construct the instrument shown Fig. A designates jar receptacle partly or wholly conducting material and provided with closely-fitting cap cover prefer- 55 ably insulating material. Applicationfiled. My present invention, while based upon this important feature the practically com­ plete exclusion air gas from the dielec­ tric, improvement the forms con- 25 denser heretofore described and used me. 85 In this case employ jar receptacle A which preferably used also one terminal and filled with conducting liquid, before. W hat claim is— . While have illus­ trated the invention its preferred form for general practical purposes, will under- 100 stood that, without departure from the inven­ tion its construction may greatly varied and modified. 464,667, have shown and described a convenient and practicable means accom­ plishing this result immersing the con­ ducting-plates armatures thecondenser 20 insulating fluidy such oil.nited States Patent Office. Such condensers are es­ pecially advantageous when used with cir­ cuits great rates electrical vibration be­ cause the high conducting capacity such fluids for currents this character. There 40 is, however, general advantage derived from the fact that the conducting fluids have a high specific heat, that the temperature remains constant, condition many cases highly advantageous and not met with in 45 condensers ordinary construction. Fig. Into the latter extends series connected conductors inclosed and fully insulated 90 from the liquid coating such material as gutta-percha These conductors are electrically joined terminal which ex­ tends through the cover and constitute one the armatures the condenser. ELECTRICAL CONDENSER. The ter- 70 minals for the two armatures may pro­ vided various ways, but such foi’ms of condenser that illustrated prefer util­ ize the conducting portion the outer recep­ tacle one terminal, securing binding-post 75 to the same, and employ elec­ trode suitably-extended surface im­ mersed the liquid the inner receptacle and electrical connectionwith the binding- post desirable some cases mod- 80 ify the construction the condenser, when a larger capacity required. 15 patent granted December 1891, No. 590,928, (H om odel,} To all whom concern: Be known that ikola Tesla, citizen of the United States, residing New York, in the county and State New York, have 5 invented certain new and useful Improve- ments Electrical Condensers, which the following specification, reference being- had the drawings accompanying and form­ ing part the same, io has heretofore been announced and dem­ onstrated that, under ordinary condi­ tions, the efficiencyof electrical condenser is greatly increased the exclusion air or gaseous matter general from the dielectric. NIKOLA TESLA, NEW YORK, Y. 567,818, dated September . SerialN o. 95 the surface the electrolyte conducting liquid poured quantity oil for the purpose above stated