Safety belt devices

Claim 1

A SAFETY BELT BUCKLE COMPRISING A AIR OF SEPERABLE BUCKLE PARTS, ONE OF SAID BUCKLE PARTS COMPRISING A PAIR OF CATCH TEETH SEPERATED BY AN INTERVENING RECESS, EACH OF SAID TEETH HAVING A CATCH RECESS ON ITS OUTER SIDE, THE OTHER BUCKLE PART COMPRISING A PAIR OF LATCH BOLTS SLIDABLE INTO AND OUT OF SAID CATCH RECESSES RESPECTIVELY WHEN SAID BUCKLE PART ARE TOGETHER, SAID CATCH TEETH BEING URGED ANGULARLY EDGEWISE TOWARDS EACH OTHER BY THE BENDING ACTION OF THE LATCH BOLTS THEREON WHEN IN LOCKING POSITION IN SAID CATCH RECESSES UPON THE PULLING OF SAID BUCKLE PARTS AWAY FROM EACH OTHER IN DIRECTIONS ALONG THE LENGTH OF THE BUCKLE, SPRING MEANS URGING SAID LATCH BOLTS INTO SAID RECESSES RESPECTIVELY WHEN SAID BUCKLE PARTS ARE TOGETHER AND A SUPPORT TOOTH HAVING A SHAPE TO FIT SAID INTERVIEWING RECESS SNUGLY TO MESH WITH SAID CATCH TEETH AND TO SUPPORT SAID TEETH AGAINST SAID BENDING ACTTION WHEN SAID BUCKLE PARTS ARE LOCKED TOGETHER AND WHEN SAID CATCH TEETH ARE SUBJECTED TO STRESSES RESULTING ROM SEPARATING PULL ON SAID BUCKLE PARTS, WHEREBY SAID CATCH TEETH ARE SUBJECTED MAINLY TO SHEAR STRESSES DURING SUCH PULL, SAID CATCH TEETH AND SAID SUPPORT TEETH BEING IN RELATIVE POSITION TO INTERMESH UPON MOVEMENT OF SAID BUCKLE PARTS RELATIVELY TOWARDS EACH OTHER, AND HAND-CONTROLLABLE MEANS FOR MOVING SAID LATCH BOLTS OUT OF SAID CATCH RECESSES AGAINST THE ACTION OF SAID SPRING MEANS TO PERMIT SAID BUCKLE PARTS TO BE SEPERATED.