BE509399A - - Google Patents

Description

       

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  ELECTRONIC GENERATOR, VERY HIGH VOLTAGE, USED FOR TEXTILING ON
ADHESIVE, FOR THE DECORATION OF VARIOUS OBJECTS.



  DESCRIPTION.



   This assembly which essentially comprises a resonant circuit excited by impulse supplies the 25,000 volts necessary either to a plate located above the rectification, or connected to a shovel, forming a static current between the plate or shovel and a negative objective.



   The tray is generally used for batch textilizing on paper, cardboard, fabrics and small items.



   The shovel is used for all vertical surfaces. This assembly can also be used for the projection of cork powder, leather, fiber wool, abrasive, and metal powders.



   The resonant circuit produces voltage spikes of about 8,500 volts which are applied to a voltage tripler rectifier circuit giving the output about 25,000 volts.



   The three diodes and the filtering capacities are mounted in a sealed metal box filled with oil. This box with the two tubes mounted inside forms a frame requiring only a 6 volt 3 power supply for the filaments and a high voltage of 350 volts.



   These voltages are obtained by a separate power supply. They can also be taken from the AC power supply of a radio receiver. When the current exceeds 200 "A, the output voltage drops rapidly which also constitutes an additional safety device.



  Very high voltage power supply. Element values: High frequency oscillating lamp I; High frequency lamp II; 3-4-5 rectifier lamps 8.500 volts plate.



    RESISTORS R.I of 40 ohms 0.25 w.R.II 60 M; ohms0.5 w.



  R. 3 4 k ohms Iw.R 4.40 ohms 0.25 w.R.5 0.15 M.ohms 0.25 w.



  R. 6 120 ohms Iw.7.7 0.55 M. ohms 0.25w.R.8 I, 5M.ohms 0.5w.

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  CAPACITIES: C.I mica capacitor 4.000 pf 5% .C.2 cond. paper 0, I mp 10% 600 volts. C. 3 electrolytic 25 mf 500 volts. 0.4. cond. paper 12,000 mf 10% 400 volts .0.5. paper capacity 15,000 mf 10% 125 volts. C.6. cond. electrolytic 25 mf 25 volts. C. 7. paper cond. 27,000 mf 10% 400 volts.



  Electrolytic 8-9-10 capacitors of 40 mf. 10,000 volts.



  Transformer I. bloking ratio I / 3.



  Low loss resonant magnetic core transformer.



  Transformer III, power supply, mains input 110-130-140-220 volts.



  Output 2 x 375 volts, 6 volts 3 for filaments, 5 to 6 volts for rectifier lamp. I double plate rectifier lamp, I 2 x electrolytic capacitor from 8 to 25 mf, 500 volts, I filter choke from 10 to 50 henrys.



  A series resistor of I.M ohms is included in the 25,000 volt conductor at its output which together with the outer coating capacity serves as a safety arrangement in the event of a short circuit in the output circuit.



  Power supply: Current 47 mA for 200 pA output current; 26 mA for zero output current.