Ignition distributor having current-conductive segments in two groups of opposite polarity

Claim 1

AN IGNITION DISTRIBUTOR FOR A PRIMARY CIRCUIT COMPRISING IN COMBINATION: A PRIMARY CIRCUIT INCLUDING IN SERIES A COIL AND A GROUNDED SOURCE OF CURRENT; A CASING GROUNDED IN SAID CIRCUIT AND HAVING A CIRCULAR WALL; AN INSULATED ROTOR JOURNALED FOR 360* OF ROTATION WITHIN SAID WALL AND HAVING AN ARM EXTENDING RADIALLY TOWARD THE INNER SURFACE OF SAID WALL FOR SWEEPING THEREBY DURING ROTATION OF SAID ROTOR; AN INSULATION RING IN SAID HOUSING IN SPACED, OPPOSED RELATION FROM THE TERMINAL END OF SAID ARM; TWO GROUPS OF CIRCUMFERENTIALLY SPACED, ARCUATE, CURRENT CONDUCTING SEGMENTS ON SAID INSULATION RING, SEGMENTS OF ONE GROUP BEING INTERPOSED BETWEEN SEGMENTS ON THE OTHER GROUP SO THAT THE SEGMENTS ARE ALTERNATELY DISPOSED ON SAID WALL, ONE GROUP OF SEGMENTS BEING ELECTRICALLY CONNECTED TO SAID HOUSING AND GROUNDED THERETHROUGH, THE OTHER GROUP OF SEGMENTS BEING CONNECTED IN SERIES TO SAID COIL; AND CONTACT MEANS SECURED TO THE TERMINAL END OF SAID ARM, SAID CONTACT MEANS HAVING A CIRCUMFERENTIAL SPAN LESS THEN THE ARC OF ONE OF SAID SEGMENTS WHEREBY POLARITY OF THE SEGMENTS OF THE GROUPS ARE ALTERNATELY REVERSED AS THE COIL IS ALTERNATELY CHARGED AND DISCHARGED.