Articulated reciprocating contact structure

Claim 1

A BRIDGING CONTACT COMPRISING A SUPPORT HAVING PASSAGE EXTENDING THERETHROUGH WHICH IS OPEN AT BOTH ENDS, A PLURALITY OF SEPARATE CONTACT BRIDGE ELEMENTS EXTENDING THROUGH THE PASSAGE IN SIDE BY SIDE RELATION IN A ROW WHICH EXTENDS TRANSVERSELY OF THE PASSAGE, SAID ELEMENTS BEING MOVABLE IN THE PASSAGE BODILY IN OPPOSITE DIRECTIONS ALONG A PREDETERMINED PATH WHICH IS TRANSVERSE TO THE LENGTH OF THE PASSAGE AND TO SAID ROW, FULCRUM MEANS CARRIED BY THE SUPPORT IN SAID PASSAGE, SAID ELEMENTS EACH BEING ENGAGED BETWEEN ITS ENDS WITH THE FULCRUM MEANS FOR ROCKING IN OPPOSITE DIRECTIONS RELATIVE TO EACH OTHER AND TO THE SUPPORT INDEPENDENTLY OF EACH OTHER ABOUT THE FULCRUM MEANS, EACH IN A ROCKING PATH PARALLEL TO A PLANE WHICH EXTENDS ENDWISE OF THE PASSAGE AND PARALLEL TO SAID PREDETERMINED PATH, EACH ELEMENT HAVING CONTACT PORTIONS AT ITS OPPOSITE ENDS, RESPECTIVELY, ALL OF SAID CONTACT PORTIONS FACING IN ONE DIRECTION ENDWISE OF SAID PREDETERMINED PATH, A SPRING IN THE PASSAGE COMMON TO ALL OF THE ELEMENTS AND OPERATIVELY INTERPOSED BETWEEN THE SUPPORT AND THE ELEMENTS AND RESILIENTLY URGING ALL OF THE ELEMENTS IN SAID ONE DIRECTION ALONG SAID PREDETERMINED PATH AND INTO ENGAGEMENT WITH THE FULCRUM MEANS AND YIELDABLY HOLDING THEM AGAINST THE FULCRUM MEANS, IN RELATIVELY ROCKED POSITIONS IN THEIR ROCKING PATHS WHEREIN THE ELEMENTS ARE PARALLEL TO EACH OTHER.