The U.S. Patents of Nikola Tesla

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The operation the device follows: . 660,518. A body supported trunnions hav­ ing bearings the ends the receptacle and concentric with the axis rotation of the same. In the drawing hereto annexed have illus- 55 trated the preferred form apparatus which I have devised for carrying out these improve­ ments. The present invention embodied de­ vice for securing the proper relative move­ ment the two parts terminals the cir- 40 cuit-controller and involves two salient fea­ tures novelty, onethat provides for main­ taining rotating receptacle stationary jet jets which impinging rigid con­ ductor maintain the latter rotation, there- 45 securingthe requisite rapidly-intermittent contact between the two, and the other that it utilizes the rotation such rigid conductor as means for opposing preventing the movement its own supports the direc- 50 tion rotation the receptacle, thereby se­ curing, among other things,an approximately constant relative movement between the parts, feature which devices this kind is often very desirable. 75 Any convenient means may employed to rotate the receptacle; but simple way to effect this surround the same with a field-magnet and make the receptacle itself the armature electric motor 80 else secure armature-cores, H. The chief distinguishing fea­ tures these devices are the use con­ ducting fluid for one both the terminals under conditions which permit ofa very rapid succession makes and breaks and con- 20 struction arrangement which allows the inclosing the terminals air-tight re­ ceptacle which inert, medium may be maintained. These two parts are electrically connected, respectively, with the two terminals the 70 apparatus, hereinafter described, and by means brushes bearing any suit­ able points the two parts the receptacle, the circuit-controller connected with the wires circuit.United States Patent Office. efforts meet the practi­ cal requirements apparatus this kind 25 harre led adopt expedients and in­ vent mechanisms entirely novel such de­ vices. 609,249, dated August 16, 1898. ApplicationfiledM arch 12,1898. SPECIFICATION forming part Letters Patent No. N Y. The weight the body being 85 ;eccentric this axis tends oppose its turn­ ing about the axis when the receptacle ro­ tated. Upon the body support but insulated therefrom, secured, vertical standard 90 in which there freely-rotatable spindle L, carrying disk with radial arms inclined to the plane the. (H om odel,) To all whom may concern: Be known that Nikola Tesla, the borough ofManhattan,in the city, county,and State New York,have invented certain new S and useful Improvements Electrical-Cir­ cuit Controllers, which the following a specification, reference being had the draw­ ing accompanying and forming part the same. ELECTRIC-CIRCUIT CONTROLLER. disk, form vanes N. A designates receptacle, usually iron 60 or steel and mounted any suitable manner, as trunnions having bearings in standards capable rapid rotation about horizontal axis. For example, order effect rap- idly-intermittent contact between two termi­ nals the use jet jets closed re- 30 ceptacle obviously necessary employ special means which will operate hold one part the apparatus stationary while the other rotates rotate both the essential parts terminals opposite directions orj 35 the case may be, the same direction at different speeds. Arms are also secured the body I and are formed with carry their ends 95 ducts tubes with one end directed to­ ward and opening upon the vanes and the other end close the inner wall the re­ ceptacle and opening the direction oppo­ site that the rotation the receptacle. In the particular form device under con- 65 sideration the receptacle divided into two parts insulated washer and held to­ gether insulated bolts with nuts F. io The present application based upon im­ provements electrical-circuit controllers of the kind heretofore invented and de­ scribed previous applications, notably in an application filed December 1897, Serial 15 No. The figure central vertical cross- section circuit-controller. 100 A suitable quantity mercury placed in the receptacle before the latter sealed or closed. SerialH o, 673,560