Lock mechanism for a lading tie-down anchor device

Claim 1

IN A TIE-DOWN ANCHOR DEVICE OF THE TYPE INCLUDING A BASE MOVABLE WITHIN OPPOSED RETAINING FLANGES OF AN OPEN MOORING CHANNEL TO POSITIONS THEREALONG AND MEANS ON SAID BASE ENGAGEABLE WITH SAID FLANGES TO SECURE SAID ANCHOR DEVICE THEREAT, AS DESIRED, BY A CLOSING TOGETHER OF SAID BASE AND FLANGES FOR AN ENGAGEMENT THEREBETWEEN, A QUICK RELEASABLE MECHANISM TO LOCK SAID ENGAGEMENT, COMPRISING: A LUG AFFIXED ON SAID BASE AT A POSITION BETWEEN SAID FLANGES, SAID LUG PROJECTING FROM SAID BASE WITH A PORTION THEREOF EXTENDING OUTWARD, DURING SAID ENGAGEMENT, BEYOND SAID FLANGES, SAID LUG PORTION HAVING THERETHROUGH A BORE AT AN AXIS TRANSVERSE TO SAID FLANGES; AND A BOLT WITHIN SAID BORE SLIDABLE ALTERNATELY BETWEEN A RETRACTED DISPOSITION INTERMEDITE SAID FLANGES AND AN EXTENDED DISPOSITION OVERLYING ONE OF SAID FLANGES, SAID RETRACTED DISPOSITION ALLOWING SEPARATION OF SAID BASE AND FLANGES FOR A DISENGAGEMENT THEREBETWEEN, AND SAID EXTENDED DISPOSITION PREVENTING SEPARATION THEREOF TO LOCK SAID ENGAGEMENT THEREBETWEEN.