Sliding switch construction

Claim 1

IN A SLIDING SWITCH THE COMBINATION COMPRISING AN OPEN FRAME MEMBER HAVING SPACED PARALLEL LONGITUDINAL FILLET MEANS DEFINING A PLURALITY OF FIRST OPENINGS IN SAID FRAME IN A FIRST PLANE NORMAL TO THE LONGITUDINAL AXIS OF SAID SWITCH, A PLURALITY OF SPACED PARALLEL ROD MEANS INTERCONNECTING AND SUPPORTING SAID FILLETS AND DEFINING A PLURALITY OF SECOND OPENINGS IN SAID FRAME NORMAL TO THE LONGITUDINAL AXIS OF SAID SWITCH AND THE SAID FIRST OPENINGS, A CENTRAL LONGITUDINAL PASSAGE THROUGH SAID FRAME MEMBER, A SLIDING MEMBER IN SAID PASSAGE, SAID SLIDING MEMBER HAVING A PLURALITY OF CONTACT PIECES IN SPACED PARALLEL ROWS ADJACENT THE LONGITUDINAL EDGES OF SAID SLIDING MEMBER, AND A PLURALITY OF SPRING CONTACTS SECURED IN SAID FRAME, SAID SPRING CONTACTS COMPRISING A CONDUCTIVE PLATE HAVING A RESILIENT TONGUE PORTION AND SOLDERING TAGS AT THE LONGITUDINAL EXTREMITIES THEREOF PROJECTING BEYOND SAID FILLETS OF SAID FRAME, SAID SPRING CONTACTS BEING SECURED IN SAID FRAME FOR ACCESS THERETO THROUGH AT LEAST ONE OF SAID OPENINGS TO ADJUST THE TENSION OF SAID TONGUE PORTION.