Reheat furnace

Claim 1

GENERALLY C SHAPED REFRACTORY INSULATING TILES FOR MOUNTING IN PAIRS ABOUT A COOLING CONDUIT HAVING A SKID RAIL DISPOSED THERE ABOVE AND IN CONTIGUOUS CONTACT THEREWITH, AND IN WHICH SAID COOLING CONDUIT CONTAINS EXTERNAL RIGID HOOD MEANS, EACH OF SAID TILT HAVING A LOWER LIP ARRANGED TO CONTACT A SIMILAR LIP OF THE OTHER TILE IN SAID PAIR AND A DISHED FACE ABOVE SAID LOWER LIP CONSTRUCTED AND ARRANGED TO OPPOSE A SIMILAR DISHED FACE OF THE OTHER TILE TO DEFINE AN OPEN TOPPED, OPEN ENDED SLOT, THE OPEN TOPPED SLOT HAVING AN UPPER MOUTH WHICH EXTENDS ITS LENGTH AND WHICH IS NARROWER THAN THE DIAMETER THEREOF, THE CURVATURE OF THE DISHED FACE BEING SUCH THAT A PAIR OF TILE WILL BE ADAPTED TO PERIPHERALLY ENCOMPASS IN SPACED RELATION ALL BUT THE TOP PORTION OF A COOLING CONDUIT WHERE IT IS ADAPTED TO BE IN CONTIGUOUS HEAT-CONDUCTING RELATION WITH THE SKID RIAL, AND MEANS ADAPTED TO RELEASABLY MOUNT AND FRICTIONALLY ENGAGE SAID TILES IN PLACE ABOUT THE COOLING CONDUIT, SAID MEANS INCLUDING A PLURALITY OF LONGITUDINALLY SPACED PASSAGES OPENING THROUGH THE DISHED FACE ARRANGED FOR HANGING ON THE HOOK MEANS CARRIED BY THE COOLING CONDUIT, SAID PASSAGES BEING ABOVE THE CENTER OF GRAVITY OF THE TILE.