Spacer for spring-jaw type spade terminal

Claim 1

IN AN ELECTRICAL CONTACT JAW OF THE TYPE HAVING A U-SHAPED TERMINAL PROVIDED WITH A BASE AND A PAIR OF SPACED OPPOSED LEGS EXTENDING FROM SAID BASE, OPPOSED CONTACT MEMBERS CARRIED BY SAID LEGS, SAID CONTACT MEMBERS BEING SPACED INWARDLY FROM SAID LEGS, SAID LEGS BEING NORMALLY BIASED INWARDLY SO THAT SAID CONTACT MEMBERS ARE ADAPTED TO APPLY A MAXIMUM CLAMPING FORCE AGAINST A SPADE INVERTED BETWEEN CONTACT MEMBERS, THE COMBINATION THEREWITH OF A SEPARATE RIGID SPACER MEMBER EXTENDING BETWEEN SAID OUTER LEGS AND HAVING OUTER SURFACES FOR ENGAGING, WHEN SAID CONTACT MEMBERS ARE EMPTY, THE INNER SURFACES OF SAID OUTER LEGS, THE DISTANCE BETWEEN SAID OUTER SURFACES OF SAID SPACER MEMBER BEING GREATER THAN THE NORMAL DISTANCE BETWEEN THE INNER SURFACES OF SAID OUTER LEGS AT THEIR POSITIONS OF ENGAGEMENT, SAID DISTANCE BETWEEN THE OUTER SURFACES OF SAID SPACER MEMBER BEING SUFFICIENT WHEN SAID CONTACT MEMBERS ARE EMPTY TO HOLD SAID CONTACT MEMBERS OPEN BY AN AMOUNT SUCH THAT SAID SPADE MAY BE INSERTED THEREIN WITH A MINIMAL TRAVEL OF SAID JAW TO RECEIVE SAID MAXIMUM CLAMPING FORCE OF SAID CONTACT MEMBERS, AND BEING INSUFFICIENT TO CONTINUE SUCH HOLDING ACTION WHEN SAID SPADE IS RECEIVED THEREIN.