Arc length regulator for consumable electrode melting

Claim 1

AN ARC LENGTH REGULATOR FOR CONSUMABLE ELECTRODE MELTING, COMPRISING A MOLD, A CONSUMABLE ELECTRODE EXTENDING DOWN INTO THE MOLD, AN ELECTRIC POWER SUPPLY CONNECTED WITH THE ELECTRODE AND MOLD TO MAINTAIN AN ARC BETWEEN THE ELECTRODE AND MOLTEN METAL IN THE MOLD, NORMALLY INACTIVE SAID LOWERING MEANS WHENEVER THE MAGNETIC THE MOLD, A REFERENCE COIL, A REGULATING COIL, FLUX-RESPONSIVE MEANS ASSOCIATED WITH SAID COILS AND OPERATIVE THEREBY TO ACTIVATE SAID LOWERING MEANS WHENEVER THE MAGNETIC FLUX CREATED BY THE REGULATING COIL EXCEEDS THAT CREATED BY THE REFERENCE COIL, A REFERENCE CONDENSER IN CIRCUIT WITH THE REFERENCE COIL AND DISCHARGEABLE THERETHROUGH, A REGULATING CONDENSER IN CIRCUIT WITH THE REGULATING COIL FOR DISCHARGE THERETHROUGH, DISCHARGE CONDUCTING MEANS CONTINUOUSLY CONNECTING THE REGULATING CONDENSER CIRCUIT WITH SAID ARC AND DESIGNED TO PERMIT FLOW OF CURRENT ONLY TOWARD THE ARC, MEANS CONNECTED WITH SAID POWER SUPPLY FOR PERIODICALLY CHARGING BOTH CONDENSERS TO THE VOLTAGE OF THE ARC, AND MEANS RESISTING DISCHARGE OF THE REGULATING CONDENSER THROUGH THE REGULATING COIL SO THAT MOST OF THE DISCHARGE FROM THE REGULATING COIL SO THAT MOST OF THE DISCHARGE CONDUCTING MEANS INTO THE ARC AND SO THAT THE REGULATING COIL FLUX NORMALLY DOES NOT EXCEED THE REFERENCE COIL FLUX, THE CURRENT THAT FLOWS FROM THE REGULATING CONDENSER THROUGH THE REGULTING COIL INCREASING AND THEREBY INCREASING THE FLUX OF THAT COIL ABOVE THE REFERENCE COIL FLUX WHENEVER DISCHARGE OF THE REGULATING CONDENSER INTO THE ARC IS RETARDED A PREDETERMINED AMOUT OF UNDERSIRABLE LENGTHENING OF THE ARC.