Coke oven door

Claim 1

A COKE OVEN DOOR STRUCTURE COMPRISING A FIRST DOOR FRAME, A DOOR DISPOSED IN FRONT OF SAID COVERING THE OPENING DEFINED BY THE FRAME, HOOKS CONNECTED TO OPPOSITE SIDES OF THE FRAME AND ADAPTED TO EXTEND OUTWARDLY THEREFROM, A SECOND FRAME DISPOSED IN FRONT OF SAID DOOR BETWEEN SAID HOOKS, BRIDGING BARS DISPOSED HORIZONTALLY WITHIN THE SECOND FRAME, SAID DOOR EMBODYING A PLATE AND BORDERING FLANGES ABOUT THE PERIMETER THEREOF THE FLANGES BEARING AGAINST OPPOSING SUSRFACES OF THE FIRST FRAME, FORWARDLY PROJECTING BRACKETS SECURED TO THE FRONTT OF THE DOOR, EACH BRACKET HAVING A FORWARDLY OPENING SLOT LOOSELY RECEIVING A PORTION OF THE BRIDGING BAR WHERE-BY THE SECOND FRAME AND BRIDGING BARS ARE FULLY DETACHABLY JOINED TO AND SUPPORTED BY THE DOOR, CLAMPING CROSS BARS EACH DISPOSED ACROSS THE SECOND FRAME IN FRONT OF A BRIDGING BAR AND FORMED INTERMEDIATE ITS ENDS WITH A THREADED OPENING,A NUT CARRYING SLEEVE THREADED IN EACH THREADED OPENING AND HAVING A PORTION BEARING AGAINST THE SIDE OF THE CLAMPING BAR REMOTE FROM THE BRIDGING BAR, A STUD EXTENDING FOWARDLY FROM EACH BRIDGING BAR THROUGH THE ADJACENT SLEEVE FOR ROTATION OF THE SLEEVE THEREON, A REMOVABLE BOLT COUPLING EACH BRACKET AND THE RECEIVED PORTION OF THE ADJACENT BRIDGING BAR, THE BOLT COUPLED BRACKET AND BRIDGING BAR BEING RELATIVELY MOVABLE, AND A PLURALITY OF SPRING LOADED PINS SUPPOSRTED BY AND AROUND THE SECOND FRAME AND PRESSED AGAINST THE DOOR AROUND AND ADJECENT TO THE PERIMETER OF THE LATTER, THE MOVABLE RELATIONSHIP OF THE BRACKET AND BRIDGING BAR PERMITTING THE SECOND FRAME TO MOVE TOWARD THE DOOR UPON ROTATION OF THE TREATEDED SLEEVES IN ONE DIRECTION ON THE STUDS.