Basement window buck

Claim 1

IN COMBINATION WITH A WALL FORM INCLUDING SPACED OPPOSED INNER AND OUTER PANELS HAVING SUBSTANTIALLY HORIZONTAL UPPER EDGES, A WINDOW BUCK FOR FORMING A WINDOW OPENING IN A CAST CONCRETE WALL AND FOR POSITIONING A WINDOW ASSEMBLY IN SAID OPENING FOR SECUREMENT THEREIN UPON A CASTING OF THE CONCRETE IN SAID FORM, SAID WINDOW BUCK COMPRISING A ONE-PIECE UPWARDLY OPENING USHAPED FRAME POSITION BETWEEN SAID INNER AND OUTER PANELS AND INCLUDING A PAIR OF GENERALLY PARALLEL LEGS INTERCONNECTED BY MEANS OF A BIGHT PORTION AT THEIR LOWER ENDS, SAID LEGS AND SAID BIGHT PORTION BEING SUBSTANTIALLY U-SHAPED IN CROSS SECTION EACH INCLUDING SUBSTANTIALLY PARALLEL INNER AND OUTER FLANGES INTERCONNECTED BY MEANS OF A WEB PORTION EXTENDING BETWEEN THE OUTER SIDE EDGES OF CORRESPONDING ONES OF SAID FLANGES, THE OPPOSITE FLANGES OF SAID LEGS AND BIGHT PORTION ON EACH SIDE OF THE MEDIAL PLANE OF SAID FRAME BEING COPLANAR AND DEFINING SUBSTANTIALLY PARALLEL OPPOSITE SIDE FACES OF SAID FRAME, ONE OF SAID SIDE FACES BEING ORIENTATED AGAINST ONE OF SAID PANELS, MEANS ADJUSTABLY MOUNTING SAID ONE SIDE FACE ON SAID ONE PANEL, SAID MEANS CONSISTING OF A