Patent GB-157263-A (GB)
Title: Process and apparatus for converting static atmospheric electrical energy into dynamic electrical energy of any suitable high periodicity
IPC: H05F7/00
Filed: 1921-01-10
Abstract: 157,263. Traun's Forschungslaboratorium Ges., H. O. Nov. 13, 1919, [Convention date]. Atmospheric electricity, utilizing; influence machines.-Static atmospheric charges are converted into alternating-currents of any desired frequency by rotary machines, the stator and rotor elements of which form condensers having a capacity which varies during the revolution as described in Specincation 157,262. In the simplest form, Fig. 2, the curved stator plates 2, 1 are connected to earth E2 and the aerial A which collects the atmospheric charges and is earthed through a safety spark gap F. The rotor is motor-driven and consists of concentric plates 3, 4 joined through slip-,rings (not shown) to an inductance 9 shunted by a condenser 5. With a given aerial polarity, rotation of the plates 3, 4 causes current reversals on the circuit A, 1, 9, 2, E@, whereby oscillations are set upon the circuit 9, 5, these being tapped by leads 11, 12. The condenser 5 may consist of concentric tubes rotating with the rotor or of two juxtaposed wound spirals having capacity. The stator and rotor condenser plates may extend over nearly a semicircle in place of the quadrants shown in Fig. 2 and the rotor may comprise two consecutive cylindrical plates or coil condensers each divided into halves, the inner half of each being connected to the outer half of the other. Fig. 7 shows a form in which rings 1, 2, mounted in a casing comprising upper and lower parts insulated from each other, are connected to the stator condenser plates at intervals. The rotor plates 3, in equal number, are connected to slip-rings 5, 6 from which alternating-current is taken by brushes when the rotor is motor-driven. The rings 1, 2 are respectively connected to the aerial collector and earth E2. Several methods of grouping the stator-rotor condenser pairs and the components of the oscillating circuit are described. The oscillatory current in the rotor circuit may react through a transformer on the main charging current and two pairs of stator and rotor plates 1, 2, 3, 4, Fig. 13, may be employed arranged on diameters at right-angles, the oscillatory circuit in this case consisting of a mutual inductance 5 having capacity and a portion of an adjustable inductance 9 in the stator earth connector E2. By suitably proportioning the stator and rotor plates, 'resonance may be established, whereby undamped waves may be produced. In the form shown in Fig. 15, for high-frequency oscillations, the aerial A and earth wire are tapped at points between the stator plates 1, 2 and condensers 16, 18 which are joined through an inductance 9. The rotor current is conveyed to the power circuit 11, 12 through transformers 10, 10<a>. The members composing the stator and rotor plates may be slotted, as shown in Fig. 8, with holes 1 for attaching them to the frame, or they may have spiral slots in their surfaces. Alternatively, they may be formed by embedding spiral wires 3 in a vulcanite mass 1 so as to give a smooth surface as shown in Fig. 11.