Switching apparatus employing fuse as movable contact and having safety features

Claim 1

IN COMBINATION, STRUCTURE MEANS DEFINING A SPACE, SAID STRUCTURE MEANS HAVING AN OPENING AND A DOOR THEREFOR OPERABLE BETWEEN OPEN AND CLOSED POSITIONS, FIRST SWITCH MEANS INCLUDING A SET OF CONTACTS DISPOSED IN SAID SPACE AND OPERABLE BETWEEN CLOSED AND OPEN POSITIONS AND OPERATING MEANS FOR OPERATING SAID SET OF CONTACTS, A FUSE DISPOSED IN SAID SPACED AND HAVING ONE END CONDUCTIVELY COUPLED TO ONE OF SAID CONTACTS, MEANS FOR ROCKABLY SUPPORTING SAID ONE END OF THE FUSE IN SUCH MANNER THAT THE OTHER END OF THE FUSE IS SWINGABLE ABOUT SAID ONE END, FIRST CONTACT MEANS COUPLED TO SAID OTHER END OF THE FUSE AND MOVABLE THEREWITH, A SECOND SWITCH MEANS HAVING A SECOND SET OF CONTACTS INCLUDING SAID FIRST CONTACT MEANS AND STATIONARY SECOND CONTACT MEANS IN THE PATH OF MOVEMENT OF SAID FIRST CONTACT MEANS, A MEMBER WHICH IS MOVABLE BETWEEN FIRST AND SECOND POSITIONS, MEANS COUPLING SAID MEMBER TO SAID FUSE IN SUCH MANNER THAT MOVEMNET OF SAID MEMBER TO SAID FIRST POSITION SWINGS SAID FUSE IN ONE DIRECTION AND MOVES SAID FIRST CONTACT MEANS INTO CONTACT WITH SAID SECOND CONTACT MEANS, AND MOVEMENT OF SAID MEMBER TO SAID SECOND POSITION SWINGS SAID FUSE IN OPPOSITE DIRECTION AND MOVES THE FIRST CONTACT MEANS OUT OF CONTACT WITH THE SECOND CONTACT MEANS, AND MEANS FOR LOCKING SAID MEMBER IN SAID SECOND POSITION IN RESPONSE TO OPENING OF SAID DOOR.