Device for producing stroboscopic light for timing engines

Claim 1

IN A DEVICE FOR PRODUCING STROBOSCOPIC LIGHT FOR TIMING AN ENGINE HAVING A SPARK IGNITION SYSTEM INCLUDING A BATTERY AND IGNITION COIL, THE LATTER HAVING IN ITS PRIMARY CIRCUIT BREAKER POINTS SHUNTED BY A CONDENSER, THE COMBINATION COMPRISING A STEP-UP TRANSFORMER HAVING A PRIMARY AND SECONDARY, A RECTIFIER CONNECTED TO THE SECONDARY FOR PRODUCING A HIGH VOLTAGE D.C. OUTPUT, A FLASH TUBE HAVING SUPPLY TERMINALS AND A TRIGGERING TERMINAL WITH THE SUPPLY TERMINALS BEING CONNECTED TO THE OUTPUT OF THE RECTIFIER, MEANS FOR CONNECTING THE TRANSFORMER PRIMARY TO THE IGNITION COIL PRIMARY FOR PERIODIC ENERGIZATION OF THE TRANSFORMER BY RELEASE OF ENERGY STORED IN THE COIL AS THE BREAKER POINTS ARE OPENED, A STORAGE CAPACITOR CONNECTED IN PARALLEL WITH THE SUPPLY TERMINALS OF THE FLASH TUBE FOR PROGRESSIVE BUILDUP OF VOLTAGE THEREACROSS UPON SUCCESSIVE CLOSURE OF THE IGINITION POINTS DURING A COMPLETE FIRING CYCLE OF THE ENGINE, AND MEANS FOR CONNECTING THE TRIGGERING TERMINAL OF THE FLASH TUBE TO ONE OF THE SPARK PLUGS FOR FIRING OF THE TUBE ONCE DURING SAID CYCLE COORDINATED WITH THE BUILDUP OF VOLTAGES ACROSS THE STORAGE CAPACITOR TO A PREDETERMINED LEVEL.