Device of flashing incandescent lamp with heat sensitive element for shunting a portion of the incandescent filament

Claim 1

IN AN ELECTRIC LAMP ADAPTED TO FLICKER RAPIDLY AND AUTOMATICALLY BETWEEN A FULL INTENSITY OF LIGHT AND A DIMINISHED INTENSITY AND HAVING A HOLLOW LAMP BULB ENCLOSING A FILAMENT-SUPPORTING STEM THEREIN, THE COMBINATION WHICH COMPRISES AN ELONGATED LIGHT-PRODUCING FILAMENT, END SUPPORT MEANS ON SAID STEM FOR SUPPORTING EACH OPPOSITE END OF SAID FILAMENT TO A FIXED POSITION WITHIN SAID BULB, SAID END SUPPORT MEANS ALSO PROVIDING MEANS FOR CONDUCTING ELECTRIC CURRENT TO AND THROUGH SAID FILAMENT, ADDITIONAL INTERMEDIATE SUPPORT MEANS ON SAID STEM FOR SUPPORTING SAID FILAMENT INTERMEDIATE SAID OPPOSITE ENDS THEREOF AND DEFINING TWO GENERALLY VERTICAL PORTIONS OF SAID FILAMENT, SAID INTERMEDIATE SUPPORT MEANS ALSO PROVIDING ELECTRICAL CONTACT WITH SAID FILAMENT, AN ELONGATED FLAT HEAT-SENSITIVE AND ELECTRICALLY CONDUCTIVE STRIP ELEMENT ADAPTED TO FLEX IN RESPONSE TO VARIATIONS IN TEMPERATURE, SAID STRIP ELEMENT BEING AFFIXED TO ONE OF SAID SUPPORT MEANS AND EXTENDING ADJACENT ANOTHER OF SAID SUPPORT MEANS FOR ESTABLISHING ELECTRICAL CONTACT BETWEEN ONE OF SAID END SUPPORT MEANS AND SAID INTERMEDIATE SUPPORT MEANS UPON HEATING SAID STRIP ELEMENT EFFECTING AN ELECTRICAL SHUNT THEREBETWEEN DE-ENERGIZING ONE OF SAID TWO PORTIONS OF SAID FILAMENT, AND SAID STRIP ELEMENT BEING DISPOSED CLOSELY ADJACENT AND SUBSTANTIALLY COEXTENSIVELY ALIGNED WITH SAID ONE PORTION OF SAID FILAMENT WITH A FLAT SIDE OF SAID STRIP FACING SAID PORTION OF SAID FILAMENT IN DIRECT HEAT-RECEIVING RELATION THERETO.