Panel installation

Claim 1

AS AN ARTICLE OF MANUFACTURE, A PANEL-SUPPORTING BRACKET FORMED TO PROVIDE A BODY WHICH IS GENERALLY U-SHAPED IN TRANSVERSE CROSS SECTION AND COMPRISING AN ELONGATED, GENERALLY FLAT BASE HAVING ARMS EXTENDING IN A COMMON DIRECTION FROM ITS LATERAL EDGES WITH FOOT MEANS EXTNDING OUTWARDLY FROM THE DISTAL EDGE OF EACH ARM, SAID BASE BEING FORMED, SUBSTANTIALLY MIDWAY BETWEEN ITS LATERAL EDGES, WITH A LONGITUDINALLY-EXTENDING CHANNEL IN ITS FACE REMOTE FROM SAID FOOT MEANS, SAID CHANNEL OPENING AT ONE END THROUGH ONE END OF SAID BASE AND AT ITS OTHER END DEFINING A STEP LOCATED NEARER TO SAID ONE BASE END THEN TO THE OTHER END OF SAID BASE, SAID STEP BEING FORMED WITH A OPENING THERETHROUGH, SAID BASE FURTHER BEING PROVIDED WITH A PLURALITY OF NOTCHES IN ONE OF SAID LATERAL EDGES PROGRESSIVELY SPACED FROM THE LOCATION OF SAID OPENING TOWARD SAID OTHER BASE END AND ALL OF SAID NOTCHES BEING NEARER TO SAID OTHER BASE END THAN TO SAID ONE BASE END.