Spark monitor for fuel burner

Claim 1

A SPARK MONITOR FOR A LARGE FUEL BURNER FOR USE IN INDUSTRIAL FURNACES OR THE LIKE, SAID BURNER BEING IGNITED BY A SPARK GAP IGNITER ENERGIZED BY A HIGH VOLTAGE SUPPLY, SAID IGNITER HAVING A HIGH VOLTAGE TERMINAL, SAID HIGH VOLTAGES SUPPLY TERMINATING IN A SPRING TERMINAL CAP DIMENSIONED TO FIT ON THE HIGH VOLTAGE TERMINAL OF THE IGNITER, SAID MONITOR COMPRISING A NEON GLOW LAMP HAVING AN INTERNAL ELECTRODE WITH A LEAD CONNECTED THERETO, A CONDUCTIVE SHIELD ADJACENT THE LAMP AND ACTING AS AN EXTERNAL ELECTRODE, A LAMP RESISTOR IN SERIES WITH SAID LEAD OF SAID INTERNAL LAMP ELECTRODE, A MAIN RESISTOR IN SHUNT WITH A SERIES CIRCUIT WHICH SERIES CIRCUIT COMPRISES THE SHIELD, THE LAMP, AND THE LAMP RESISTOR, A HOUSING FOR THE AFORESAID PARTS, SAID HOUSING EXPOSING THE LAMP AT ONE END, THE OTHER END HAVING A SPRING CAP DIMENSIONED TO SNAP ON THE HIGH VOLTAGE TERMINAL OF THE IGNITER, THE BODY OF SAID HOUSING HAVING A HIGH VOLTAGE TERMINAL SHAPED LIKE THAT OF THE IGNITER TO RECEIVE THE SPRING TERMINAL CAP TO THE HIGH VOLTAGE SUPPLY LINE, A CONNECTION FROM SAID TERMINAL TO ONE END OF THE SHUNT CIRCUIT, AND A CONNECTION FROM SAID SPRING CAP TO THE OTHER END OF THE SHUNT CIRCUIT, WHEREBY HIGH VOLTAGE SUPPLY TO THE IGNITER.