Refractory bricks

Claim 1

A VERTICAL WALL CONSTRUCTION FOR A METALLURGICAL OR LIKE FURNACE AND COMPRISING ROWS OF ELONGATED BRICKS EACH HAVING A CORE OF REFRACTORY MATERIAL, EACH SUCH CORE BEING OF GENERALLY UNIFORM RECTANGULAR CROSS-SECTION THROUGHOUT ITS LENGTH AND HAVING SUBSTANTIALLY FLAT SIDES AND END FACES, EACH SUCH BRICK HAVING A METALLIC CASING EXTENDED ABOUT SELECTED SIDES THEREOF AND EXTENDING FROM ONE END FACE OF THE RELATED CORE TO WELL BEYOND THE OPPOSITE FACE TO THEREBY AFFORD FIN-LIKE EXTENSIONS OF THE CASING IN EACH BRICK PROJECTING WELL BEYOND SAID OPPOSITE END FACE OF THE RELATED REFRACTORY CORE, AN OPPOSED PAIR OF SAID EXTENSIONS HAVING OPENINGS THEREIN, SAID BRICKS BEING LAID ONE ATOP ANOTHER AND ONE ASIDE ANOTHER IN GENERALLY HORIZONTAL ATTITUDES IN THE SIDE WALL OF THE FURNACE WITH SAID CASING FINS DISPOSED OUTERMOST IN THE SIDE WALL AND ALIGNED ONE WITH ANOTHER TO AFFORD A HONEYCOMB NETWORK OF OPEN-ENDED FOUR-SIDED METAL POCKETS AT THE OUTER SIDE OF THE FURNACE SIDE WALL ADAPTED TO RECEIVE AND HOLD SUPPLEMENTARY REFRACTORY MATERIAL PACKED INTO THE HONEYCOMB AT A STAGE OF FURNACE OPERATION WHERE THE INNER ENDS OF THE BRICKS HAVE BEEN SUBSTANTIALLY ERODED, SAID OPENINGS IN THE CASING FINS OF ADJACENT BRICKS BEING ALIGNED AND REGISTERED ONE WITH ANOTHER, SAID WALL CONSTRUCTION INCLUDING AT THE OUTER SIDE THEREOF HORIZONTALLY SPACED APART VERTICALLY DISPOSED BUCK-STAY COLUMNS, HORIZONTAL BARS SUPPORTED AT THEIR ENDS BY AND EXTENDED BETWEEN SAID COLUMNS AND DISPOSED OUTWARD OF THE FIN ENDS OF SAID BRICKS, AND UNITARY WIRE-LIKE FASTENERS ANCHORED TO SAID HORIZONTAL BARS AND HAVING FREE ENDS ENTERED IN AND HOOKED INTO SAID ALIGNED OPENINGS IN THE BRICK FINS TO ANCHOR AND STABILIZE A PLURALITY OF THE BRICKS.