The U.S. Patents of Nikola Tesla

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MEW YORK.other compound, with central hub and coni­ cal conduit flared out at. 797,718. o v . Serial No. is thought unnecessary show these attach­ ments the drawing. Receptacle being filled the proper level 75 with water other fluid, and the power turned on, the propeller blades are set in rotation and the fluid, drawn through the openings -lifted the horizontal flared out top conduit until overflows the -r- form circular cascade. To convey idea the results obtain­ able with small apparatus, properly de­ signed, may stated that applying only 1/25 horse-power the shaft and §5 assuming lift eighteen inches, more' -than one hundred gallons per minute may be propelled, the depth the fluid passing over the flared top conduit one foot in diameter, being nearly one-half inch.he propeller. Incidentally, permits the realization beautiful and striking views through, illumination and the dispo- 25 sition voluminous cascades which, more- /over, may applied useful,purposes in ways not '. during the speed and securing smooth,and even overflow. .the top and pro- 50 rided with openings the bottom. Invariably, the quantity 'of the issuing fluid was small and the pleasing 15 impression the eye was solely the result of the more less artistic arrangement pf the streamlets . the lift inconsiderable, little power needed keep motion a 'great volume water and the impression 3$ produced the observer very striking. Specificatipu Letters Patent. 45 Referring the first, represents re­ ceptacle any suitable material, metal, 'glass, porcelain, marble, cement .UNITED STATES PATENT OFFICE'. 1,113,716. MIKOLA TESLA. Particularly beautiful displays, how- no ever, are obtainable illumination which may carried out many ways. iVith the vied’ still further economizing energy, the bottom receptacle may be shaped indicated the dotted, lines ,12, in Fig. In the accompanying drawing, Figure is 40, top plan and Fig. Patented Oct.the following full, clear, and exact description. 13,1914.practicable with the old and fa­ miliar devices. These objects are accom­ plished the displacement great vol- 80 ume fluid with relatively smáli expendi­ ture energy the production and mainte­ nance veritable waterfall distin­ guished from mere spout, jet spray. The latter funnel shaped for 'reasons' 33 of economy, and also for-the purpose re- . A motoi' suitably mounted as, go transmit through wheel 11, friction or otherwise, power the pulley 'wheel 7. Tn the hub inserted shaft rotatably sup­ ported ball bearings and carrying at its lower end friction pulley gear wheel 7. Y. un­ derstood that other means may employed. It has been customary heretofore foun­ íc tains and aquarian displays, project spouts, jets, sprays water from suitable fixtures, chiefly for decorative and beautify­ ing purposes. To all whom may concern: Be known that citi­ zen the United States, residing New York, borough Manhattan, county, and 5 State New York, have invented certain new and useful Improvements Fountains, of which . The present invention departure from such practice that relies principally 20 the fascinating spectacle large mass of fluid'in motion and the display seem­ ingly great power.an appliance which have . -'devised for the purpose. The operation will readily understood. 4 illustrate fcortesponding views similar device ranch simpler construction. increase the velocity the 03 intake t. Application filed October 28,1913. vertical central sec- jtional view . ioo the circulation extremely rapid the total quantity liquid required comparatively small... About one tenth that delivered per minute will be, generally, sufficient. In order prevent the wetting the bearings shaft the central hub re­ ceptacle made project above conduit 3.and ornaments employed. Openings may covered with removable drainers and receptacles may lie provided pi convenient connections, respectively, 35 for cleaning and renewing the liquid. Such a cascade presents singularly attractive ap- 105 pearanee and this- feature may still fur­ ther enhanced artistic grouping plants or other objects around it, which case the whole contrivance may hidden from view. Fig, and Fig. The underlying idea the invention can 85 carried out apparatus widely varied design, but the present instance the sim­ plest forms, which aware, are shown as embodiments the principle involved. FOUNTAIN. the upper end the shaft fastened 55 casting preferably some non-corrosive alloy, with blades constituting screw which shown this instance the best known propelling device; but will be