Method for producing wall units

Claim 1

IN A METHOD OF PRODUCING READY-TO-ERECT WALL UNITS IN A MAINLY HORIZONTAL POSITION IN A FORMING BOX-LIKE JIG HAVING OPPOSED SIDES, SAID WALL UNITS COMPRISING AT LEAST THREE LAYERS INCLUDING A FACADE LAYER, MADE OF BRICKS, AN INNER LAYER SPACED FROM SAID FACADE LAYER, MEANS INN TERMEDIATE SAID FACADE LAYER AND SAID INNER LAYER SECURING THEM IN SPACED RELATION, AND AN INTERMEDIATE LAYER OF INSULATING MATERIAL COMPLESSIBLE BY THHE WEIGHT OF SAID INNER LAYER, SAID METHOD INCLUDING APPLYING SAID FACADE LAYER TO THE BOTTOM OF SAID JIG, THEN APPLYING THE LAYER OF INSULATING MATERIAL TO H UPPER SURFACE OF SAID FACADE LAYER, AND THEN LAYING THE INNER LAYER ONTO SAID INSULATING LAYER, THE IMPROVEMENT WHICH COMPRISES INSTALLING SUPPORTING MEANS IN THE FORM OF SUBSTANTIALLY HORIZONTAL SUPPORTION BARS CARRIED BY THE JIG AFTER THE INSTALLATION OF THE INTERMEDIATE LAYER AND BEFORE THE APPLICATION OF SAID INNER LAYER BY PUSHING THE BARS THROUGH THE INTERMEDIATE INSULATING LAYER AT A SMALL DISTANCE FROM THE TOP SURFACE THEREOF AND CONNECTING THE OUTER ENDS OF THE BARS TO OPPOSITE SIDES OF THE JIG, SAID SUPPORTING MEANS, DURING THE APPLICATION OF SAID INNER LAYER UPON SAID INSULATING LAYER, CARRYING AT LEAST A MAJOR PART OF THE WEIGHT OF SAID INNER LAYER UNTIL THE INNER LAYER HAS BEEN ASSEMBLED AND HAS SET, WHEREBY TO PREVENT SUBSTANTIAL COMPRESSION OF SAID INTERMEDIATE INSULATING LAYER.