Safety belt buckle

Claim 1

IN A BELT BUCKLE, A BASE MEMBER, A LATCH MEMBER HAVING A LOST-MOTION PIVOTAL CONNECTION WITH THE BASE MEMBER COMPRISING SLOT MEANS ON ONE OF SAID MEMBERS ELONGATED LENGTHWISE OF THE BUCKMLE AND PIN MEANS ON THE OTHER MEMBER EXTENDING THROUGH THE SLOT MEANS AND ACCOMMODATING RELATIVE MOVEMENT BETWEEN THE MEMBERS LENGTHWISE OF THE BUCKLE, A CATCH ON THE LATCH MEMBER MOVABLE TOWARD THE BASE MEMBER TO LOCKING POSITION AND AWAY FROM THE BASE MEMBER TO OPEN POSITION, A TONGUE EXTENDING INTO THE BASE MEMBER FROM ONE END THEREOF AND HAVING AN OPENING RECEIVING THE CATCH MEMBER THEREIN, BIASING MEANS IN THE BASE MEMBER ENGAGEABLE WITH THE TONGUE URGING THE SAME IN AN OUTWARD DIRECTION FROM THE BASE MEMBER AGAINST SAID CATCH MEMEBR AND MOVING SAID CATCH MEMBER WITH THE TONGUE LENGTHWISE OF THE BUCKLE WITHIN THE LIMIT OF THE LOST-MOTION, AND MEANS ON THE BASE MEMBER FOR RELEASABLY HOLDING SAID CATCH MEMBER IN LOCKING POSITION DISPOSED OUTWARDLY OF THE CATCH MEMBER AND ENGAGEABLE THEREBY PURSUANT TO THE ACTION OF THE BIASING MEANS AS AFORESAID.