Reversible circular lock

Claim 1

A LATCH FOR RELEASABLY SECURING TOGETHER SEPARABLE PARTS OF A RECEPTACLE ADJACENT A LINE OF SEPARATION ALONG COPLANAR FRONT SURFACES OF THE PARTS COMPRISING, A BASE MEMBER MOUNTED ON ONE OF THE PARTS, THE BASE MEMBER HAVING A PERIPHERAL OUTWARDLY EXTENDING FLANGE, A PLURALITY OF INTERRUPTIONS IN THE BASE MEMBER FLANGE, A KEEPER MEMBER MOUNTED ON THE OTHER OF THE PARTS ADAPTED TO BE ARRANGED FOR INTERLOCKING ENGAGEMENT WITH THE BASE MEMBER TO LOCK THE PARTS AGAINST SEPARATION, THE KEEPER MEMBER HAVING A PROJETING LUG ADAPTED TO INTERFIT WITH ONE OF THE BASE MEMBER FLANGE INTERRUPTIONS, A LOCKING MEMBER ROTATABLY MOUNTED SO AS TO OVERLIE THE BASE MEMBER TO EFFECT INTERLOCKING BETWEEN THE BASE MEMBER AND THE KEEPER MEMBER, A PERIPHERAL OUTWARDLY EXTENDING FLANGE ASSOCIATED WITH THE LOCKING MEMBER CONCENTRICALLY MOUNTED ABOVE THE BASE MEMBER FLANGE, A LOCK BOLT POSITIONED ON THE LOCKING MEMBER FOR RECIPROCATIVE MOVEMENT THEREACROSS TO EFFECT LOCKING ENGAGEMENT WITH ONE OF THE BASE MEMBER FLANGE INTERRUPTIONS, THE LOCK BOLT BEING ROTATABLE WITH THE LOCKING MEMBER, AND MEANS ASSOCIATED WITH THE BASE MEMBER AND THE LOCKING MEMBER TO EFFECT INTERLOCKING OF THE SEPARABLE PARTS, THE LAST NAMED MEANS BEING A MEMBER OF FLAT DISC CONFIGURATION AFFIXED TO THE LOCKING MEMBER, A RELIEVED PERIPHERAL ZONE IN THE DISC MEMBER, THE PERIPHERAL ZONE BEING ADAPTED TO BE ANGULARLY SHIFTED TO EFFECT A PREDETERMINED DIRECTION OF ROTATION OF THE LOCKING MEMBER.