Ignition system having a controlled rectifier

Claim 1

AN IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE COMPRISING, A SOURCE OF DIRECT CURRENT, AN IGNITION COIL HAVING A PRIMARY WINDING AND A SECONDARY WINDING, A FIRST RESISTOR, A CONTROLLED RECTIFIER HAVING ANODE, CATHODE AND GATE ELECTRODES, A FIRST CIRCUIT CONNECTED ACROSS SAID SOURCE OF DIRECT CURRENT INCLUDING IN A SERIES CONNECTION THE PRIMARY WINDING OF SAID IGNITION COIL, THE ANODE-CATHODE CIRCUIT OF SAID CONTROLLED RECTIFIER AND SAID FIRST RESISTOR, A SECOND CIRCUIT CONNECTED ACROSS SAID SOURCE OF DIRECT CURRENT IN PARALLEL WITH SAID FIRST CIRCUIT COMPRISING A VOLTAGE DIVIDER NETWORK HAVING A JUNCTION, SAID SECOND CIRCUIT BEING CONTINUOUSLY CONDUCTIVE WHEN SAID IGNITION SYSTEM IS ENERGIZED, A SECOND RESISTOR, SAID SECOND RESISTOR BEING CONNECTED BETWEEN SAID JUNCTION ON SAID VOLTAGE DIVIDER NETWORK AND THE GATE OF SAID CONTROLLED RECTIFIER, BREAKER CONTACTS OPENED AND CLOSED IN SNCHRONIZATION WITH OPERATION OF SAID ENGINE, AND MEANS CONNECTING SAID BREAKER CONTACTS BETWEEN SAID JUNCTION ON SAID VOLTAGE DIVIDER NETWORK AND ONE SIDE OF SAID SOURCE OF DIRECT CURRENT.