Plural armature electromagnetic switch

Claim 1

A DEVICE OF THE CLASS DESCRIBED COMPRISING, IN COMBINATION, AN INSULATING HOUSING MEMBER INCLUDING A TUBULAR SLEEVE PORTION, AN OPERATING COIL SURROUNDING SAID SLEEVE PORTION, FIRST AND SECOND FERROMAGNETIC CORE BODIES DISPOSED FOR RELATIVE AXIAL MOVEMENT IN SAID SLEEVE PORTION, ONE CORE BODY INCLUDING A NON-MAGNETIC ELECTRICALLY CONDUCTIVE SURFACE ELEMENT IN CONFRONTING RELATION TO THE OTHER CORE BODY WITHIN SAID SLEEVE PORTION, FIRST AND SECOND MOUNTING MEANS ON SAID HOUSING, FIRST CONDUCTOR MEANS INCLUDING A RESILIENT SPRING PORTION CONNECTING SAID FIRST CORE BODY WITH SAID FIRST MOUNTING MEANS AND SECOND CONDUCTOR MEANS CONNECTING SAID SECOND CORE BODY WITH SAID SECOND MOUNTING MEANS, SAID FIRST CONDUCTOR MEANS RESTRAINING AXIAL MOVEMENT OF SAID FIRST CORE BODY BUT YIELDING TO THE MAGNETIC FIELD OF SAID COIL UPON ENERGIZATION OF SAID COIL, SAID FIRST AND SECOND CONDUCTOR MEANS COOPERATING WITH SAID CORE BODIES TO ESTABLISH A MAKE AND BREAK CURRENT PATH EXTENDING THROUGH SAID SURFACE ELEMENT AND SUBJECT TO THE CONTROL OF SAID OPERATING COIL, FERROMAGNETIC BRACKET MEANS DISPOSED EXTERNALLY OF SAID COIL AND HAVING END WALLS DISPOSED AT THE ENDS OF SAID SLEEVE PORTION, THERE BEING A MAGNETIC FLUX PATH EXTENDING THROUGH SAID BRACKET EXTERNALLY OF SAID COIL AND THROUGH SAID FERROMAGNETIC CORE BODIES INTERNALLY OF SAID COIL, MEANS ESTABLISHING A FIRST GAP IN SAID FLUX PATH BETWEEN SAID FIRST CORE BODY AND ONE END WALL OF SAID BRACKET, SAID SURFACE ELEMENT INCLUDED ON SAID ONE CORE BODY ESTABLISHING A SECOND GAP IN SAID FLUX PATH.

Claim 2

A DEVICE OF THE CLASS DESCRIBED COMPRISING, IN COMBINATION, AN INSULATING HOUSING MEMBER INCLUDING A TUBULAR SLEEVE PORTION, AN OPERATING COIL SURROUNDING SAID SLEEVE PORTION, FIRST AND SECOND FERROMAGNETIC CORE BODIES DISPOSED FOR RELATIVE AXIAL MOVEMENT IN SAID SLEEVE PORTION, ONE CORE BODY INCLUDING A NON-MAGNETIC ELECTRICALLY CONDUCTIVE SURFACE ELEMENT IN CONFRONTING RELATION TO THE OTHER CORE BODY WITHIN SAID SLEEVE PORTION, FIRST AND SECOND MOUNTING MEANS ON SAID HOUSING, FIRST CONDUCTOR MEANS INCLUDING A RESILIENT SPRING PORTION CONNECTING SAID FIRST CORE BODY WITH SAID FIRST MOUNTING MEANS AND SECOND CONDUCTOR MEANS CONNECTING SAID SECOND CORE BODY WITH SAID SECOND MOUNTING MEANS, SAID FIRST CONDUCTOR MEANS RESTRAINING AXIAL MOVEMENT OF SAID FIRST CORE BODY BUT YIELDING TO THE MAGNETIC FIELD OF SAID COIL UPON ENERGIZATION OF SAID COIL, SAID FIRST AND SECOND CONDUCTOR MEANS COOPERATING WITH SAID CORE BODIES TO ESTABLISH A MAKE AND BREAK CURRENT PATH EXTENDING THROUGH SAID SURFACE ELEMENT AND SUBJECT TO THE CONTROL OF SAID OPERATING COIL, FERROMAGNETIC BRACKET MEANS DISPOSED EXTERNALLY OF SAID COIL AND HAVING END WALLS DISPOSED AT THE ENDS OF SAID SLEEVE PORTION, THERE BEING A MAGNETIC FLUX PATH EXTENDING THROUGH SAID BRACKET EXTERNALLY OF SAID COIL AND THROUGH SAID FERROMAGNETIC CORE BODIES INTERNALLY OF SAID COIL, MEANS ESTABLISHING A FIRST GAP IN SAID FLUX PATH BETWEEN SAID FIRST CORE BODY AND ONE END WALL OF SAID BRACKET, SAID SURFACE ELEMENT INCLUDED ON SAID ONE CORE BODY ESTABLISHING A SECOND GAP IN SAID FLUX PATH.