Automatic door locking assemblies

Claim 1

A DOOR LOCKING STRUCTURE INCLUDING IN COMBINATION; A LOCK CASE PRESENTING A FACE PLATE HAVING A LOCKBOLT HOLE THEREIN DESIGNED TO BE SECURED TO THE JAMB EDGE OF A DOOR BODY, AND A CASE SECTION EXTENDING FROM SAID FACE PLATE AND DESIGNED FOR INSERTION INTO THE DOOR BODY; A PRIMARY SLIDE RECIPROCABLY SUPPORTED IN THE CASE SECTION OF THE LOCK CASE, SAID PRIMARY SLIDE INCLUDING A FORWARDLY PROJECTING LOCKBOLT DESIGNED TO EXTEND THROUGH THE LOCKBOLT HOLE IN THE FACE PLATE OF THE LOCK CASE, AND A REARWARDLY PROJECTING CAM MEMBER PRESENTING A LOCKBOLT-RETRACTING CAM EDGE PORTION; A SECONDARY SLIDE RECIPROCABLY SUPPORTED IN THE CASE SECTION OF THE LOCK CASE RESILIENT MEANS EXTENDING BETWEEN SAID PRIMARY AND SECONDARY SLIDES, AND A CAMMING HOLE PRESENTING A CAMMING RIM EXTENDING THROUGH SAID SECONDARY SLIDE; AND SLIDE MANIPULATING MEANS WHICH INCLUDES A ROTATABLY MOUNTED CAMMING ELEMENT EXTENDING INTO THE CAMMING HOLE OF SAID SECONDARY SLIDE AND WHICH IS DESIGNED TO BE ROTATED INTO CAMMING ENGAGEMENT WITH THE CAMMING RIM OF SAID SECONDARY SLIDE WHEN ROTATED IN ONE DIRECTION AND INTO CAMMING ENGAGEMENT WITH THE CAM EDGE PORTION OF SAID PRIMARY SLIDE WHEN ROTATED IN THE OPPOSITE DIRECTION, AND MEANS FOR MANUALLY ROTATING SAID CAMMING ELEMENT IN OPPOSITE DIRECTIONS FROM A NEUTRAL POSITION TO THEREBY MANIPULATE SAID LOCKBOLT INTO RIGIDLY EXTENDED DOOR-LOCKING POSITION WHEN SAID CAMMING ELEMENT IS ROTATED IN ONE DIRECTION FROM NEUTRAL POSITION, AND TO MANIPULATE SAID LOCKBOLT TO DOOR-UNLOCKING RETRACTED POSITION WHEN ROTATED IN THE OPPOSITE DIRECTION FROM NEUTRAL POSITION.