The U.S. Patents of Nikola Tesla

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FOUNTAIN. In order prevent the wetting the bearings shaft the central hub re­ ceptacle made project above conduit 3.the top and pro- 50 rided with openings the bottom. 797,718.other compound, with central hub and coni­ cal conduit flared out at. 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 . vertical central sec- jtional view . Fig, and Fig. Serial No. 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. 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 .practicable with the old and fa­ miliar devices. MIKOLA TESLA.he propeller. un­ derstood that other means may employed. Y. Tn the hub inserted shaft rotatably sup­ ported ball bearings and carrying at its lower end friction pulley gear wheel 7. iVith the vied’ still further economizing energy, the bottom receptacle may be shaped indicated the dotted, lines ,12, in Fig. Application filed October 28,1913. In the accompanying drawing, Figure is 40, top plan and Fig. 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.. 13,1914. during the speed and securing smooth,and even overflow.and ornaments employed. The operation will readily understood. the lift inconsiderable, little power needed keep motion a 'great volume water and the impression 3$ produced the observer very striking. o v . is thought unnecessary show these attach­ ments the drawing. 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. Specificatipu Letters Patent.an appliance which have . 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.. 1,113,716. 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.the following full, clear, and exact description.UNITED STATES PATENT OFFICE'. 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. . ioo the circulation extremely rapid the total quantity liquid required comparatively small. 4 illustrate fcortesponding views similar device ranch simpler construction. MEW YORK. 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 '. Patented Oct. 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. 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. About one tenth that delivered per minute will be, generally, sufficient. increase the velocity the 03 intake t. 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. -'devised for the purpose. 45 Referring the first, represents re­ ceptacle any suitable material, metal, 'glass, porcelain, marble, cement . Particularly beautiful displays, how- no ever, are obtainable illumination which may carried out many ways