Vapor and fog generation

Claim 1

IN A FOGGER HAVING A BOILER, A BURNER HEATING SAID BOILER, A JET NOZZLE CONNECTED TO SAID BOILER, A SOURCE OF FOG-FORMING MATERIAL COMMUNICATING WITH SAID JET NOZZLE AND ADAPTED TO BE ENTRAINED AND DISCHARGED AS A JET THROUGH SAID NOZZLE VIA THE AGENCY OF VAPOR UNDER PRESSURE FROM SAID BOILER, ELECTRICALLY-OPERATED MEANS FOR STARTING AND STOPPING THE FLOW OF FOG-FORMING MATERIAL TO SAID JET NOZZLE, A VALVE MEMBER FOR CUTTING OFF THE FUEL SUPPLY TO SAID BURNER NORMALLY HELD CLOSED, MAIN ELECTRICAL CONTACTS ASSOCIATED WITH SAID FUEL VALVE MEMBER SO AS TO BE CLOSED WHEN SAID FUEL VALVE IS OPENED AND ENERGIZING THE MAIN ELECTRICAL CIRCUITS, A STARTING BUTTON FOR MANUALLY OPENING SAID FUEL VALVE MEMBER, BURNER IGNITION CONTACTS CLOSED WHEN SAID BUTTON IS MANUALLY PRESSED AND OPEN WHEN SAID BUTTON IS RELEASED, LATCH MEANS FOR HOLDING SAID FUEL VALVE IN OPEN POSITION WITH SAID MAIN CONTACTS CLOSED, PRESSURE RESPONSIVE MEANS COMMUNICATING WITH SAID BOILER CONROLLING SAID LATCH MEANS SO THAT SAID FUEL VALVE IS LATCHED OPEN ONLY WHEN THERE IS A CERTAIN PREDETERMINED PRESSURE IN SAID BOILER AND EFFECTING THE UNLATCHING AND CLOSING OF SAID FUEL VALVE MEMBER AND THE OPENING OF SAID MAIN CONTACTS WHEN THE BOILER PRESSURE FALLS BELOW SAID PREDETERMINED VALUE, ELECTRICAL MEANS OPERABLE WHEN SAID MAIN CONTACTS ARE CLOSED TO SUPPLY VAPORIZABLE LIQUID UNDER PRESSURE TO SAID BOILER AND MANUALLY OPERABLE ELECTRIC CONTACT MEANS FOR STOPPING THE FLOW OF FOG MATERIAL TO SAID NOZZLE WHEN OPEN AND FOR STARTING THE FLOW OF FOG MATERIAL ONLY WHEN LAST SAID CONTACTS ARE CLOSED AND SAID MAIN CONTACTS ARE ALSO CLOSED.