Spring pile-up electromagnetic relay

Claim 1

IN AN ELECTROMAGNETIC RELAY THE COMBINATION COMPRISING A MAGNETIC FRAME, A MAGNETIC ARMATURE CARRIED BY SAID FRAME, A CONTACT STACK INCLUDING A STATIONARY CONTACT ASSEMBLY AND MOVABLE CONTACT ASSEMBLIES CARRIED BY SAID FRAME, SAID STATIONARY CONTACT ASSEMBLY COMPRISING AN ELONGATED STATIONARY CONTACT ARM HAVING A SUPPORTED PORTION INTERMEDIATE THE ENDS OF THE ARM, A STATIONARY CONTACT ADJACENT ONE END OF SAID ARM, SAID MOVABLE CONTACT ASSEMBLIES COMPRISING A PAIR OF MOVABLE CONTACT SPRINGS EACH HAVING A SUPPORTED PORTION INTERMEDIATE THE ENDS OF THE SPRINGS, A PAIR OF INSULATING MOUNTING MEMBERS EACH HAVING AT LEAST ONE MOUNTING SURFACE, SAID SUPPORTED PORTIONS OF SAID MOVABLE CONTACT SPRINGS BEING CARRIED BY SAID INSULATING MOUNTING MEMBERS, EACH OF SAID MOVABLE CONTACT SPRINGS HAVING A MOVABLE CONTACT ON A PORTION OF THE SPRING REMOTE FROM THE MOUNTING MEMBER, SAID MOVABLE CONTACT SPRINGS EACH BEING SUBSTANTIALLY STRAIGHT ALONG ITS LENGTH FROM SAID MOVABLE CONTACT TO AND INCLUDING SAID PORTION SUPPORTED BY SAID MOUNTING MEMBER; SAID MOUNTING MEMBERS BEING DISPOSED IN SUPERPOSED RELATION WITH SAID ELONGATED CONTACT ARM FOR SAID STATIONARY CONTACT DISPOSED BETWEEN THE SAID PAIR OF MOVABLE CONTACT SPRINGS, THE STATIONARY AND MOVABLE CONTACTS BEING IN ALIGNMENT, SAID PORTIONS OF EACH OF SAID MOVABLE CONTACT SPRINGS SUPPORTED BY SAID MOUNTING MEMBERS EACH BEING DISPOSED AT AN ANGLE TO INCLINE SAID MOVABLE CONTACT TOWARD THE PLANE OF SAID STATIONARY CONTACT ARM TO NORMALLY BIAS SAID MOVABLE CONTACT INTO ENGAGEMENT WITH SAID STATIONARY CONTACT, AND CONTACT OPERATING MEANS IN ENGAGEMENT WITH AT LEAST ONE OF SAID SPRINGS TO SPACE ONE OF SAID MOVABLE CONTACTS FROM SAID STATIONARY CONTACT, SAID MEANS BEING ASSOCIATED WITH SAID ARMATURE TO OPERATE SAID MOVABLE CONTACTS WHEN SAID RELAY IS ENERGIZED.