Refractory brick roof patch assembly

Claim 1

A REFRACTORY BRICK ROOF PATH ASSEMBLY COMPRISING A PAIR OF BODIES OF REFRACTORY MATERIAL OF SIMILAR CONFIGURATION, EACH OF SAID BODIES INCLUDING A LONGITUDINALLY EXTENDING CUTOUR PORTION FORMED IN ONE OF THE OUTWARDLY DIRECTED FACES THEREOF, SAID BODIES BEING DISPOSED IN CLOSELY SPACED RELATIONSHIP TO ONE ANOTHER, CASING MEANS DISPOSED IN SURROUNDING RELATIONSHIP WITH SAID BODIES, MEANS FOR RETAINING SAID CASING MEANS IN OPERATIVE POSITION WITH RESPECT TO SAID BODIES, SAID CASING MEANS COMPRISING A PAIR OF INDENTICAL MATALLIC PORTIONS, EACH OF SAID PORTIONS INCLUDING OPPOSITE LONGITUDINALLY EXTENDING EDGES, EACH OF SAID PORTIONS INCLUDING A LONGITUDINALLY EXTENDING OFFSET PORTION ADJACENT ONE OF SAID EDGES, SAID OFFSET PORTION OF EACH OF SAID CASING PORTIONS FITTING WITHIN THE CUTOFF PORTION OF ONE OF SAID BODIES, SAID OFFSET PORTION ALSO RECEIVING THE OTHER LONGITUDINAL EDGE PORTION OF THE OTHER OF SAID CASING PORTIONS SO AS TO OVERLIE SAID OFFSET PORTION WHEREBY THE ASSEMBLY DEFINES A SUBSTANTIALLY RECTANGULAR CROSS-SECTIONAL CONFIGURATION WITH FLAT OUTER SUFRACES, SAID ONE EDGE PORTION OF EACH OF SAID METALLIC PORTIONS BEING COMPLETELY PROTECTED BY THE OTHER METALLIC PORTION FROM DIRECT EXPOSURE TO THE HEAT OF A FURNACE, THE OTHER LONGITUDINAL EDGE PORTION OF EACH OF SAID METALLIC PORTIONS BEING AT LEAST PARTIALLY PROTECTED BY THE OTHER METALLIC PORTION FROM DIRECT EXPOSURE TO THE HEAT OF A FURNACE.