Window

Claim 1

A WINDOW COMPRISING, IN CIMBINATION, (A) A FRAME HAVING A TOP MEMBER, A BOTTOM MEMBER, AND TWO SIDE MEMBERS INTERPOSED BETWEEN SAID TOP AND BOTTOM MEMBERS, SAID MEMBERS DEFINING A WINDOW OPENING THEREBETWEEN; (B) A SASH ADAPTED TO BE ENGAGED IN SAID OPENING TO SUBSTANTIALLY CLOSE THE SAME, SAID SASH HAVING A TOP MEMBER, A BOTTOM MEMBER, AND TWO SIDE MEMBERS INTERPOSED BETWEEN SAID TOP AND BOTTOM MEMBERS, THE MEMBERS OF SAID FRAME AND SAID SASH CONSTITUTING RESPECTIVE PAIRS OF JUXTAPOSED MEMBERS WHEN SAID SASH IS ENGAGED IN SAID FRAME, OPPOSITE ADJACENT FACES OF THE MEMBERS OF EACH PAIR OF SIDE MEMBERS BEING FORMED WITH RESPECTIVE ELONGATED GROOVES, JUXTAPOSED ONES OF SAID GROOVES JOINTLY CONSTITUTING TWO ELONGATED RECESSES EACH EXTENDING SUBSTANTIALLY FROM SAID TOP MEMBERS TO SAID BOTTOM MEMBERS WHEN SAID SASH IS ENGAGED IN SAID OPENING; (C) TWO FIRST PIVOT MEANS ON SAID FRAME ADJACENT THE TOP MEMBER THEREOF AND ADJACENT RESPECTIVE SIDE MEMBERS THEREOF; (D) TWO SECOND PIVOT MEANS ON RESPECTIVE SIDE MEMBERS OF SAID SASH AND SPACED FROM THE TOP AND BOTTOM MEMBERS OF SAID SASH; (E) AN ELONGATED ARM IN EACH OF SAID RECESSES, SAID ARM HAVING TWO END PORTIONS RESPECTIVELY SECURED TO A CORRESPONDING ONE OF SAID FIRST AND SECOND PIVOT MEANS, AND EXTENDING IN A LONGITUDINAL PORTION OF SAID RECESS; (F) A FILLER MEMBER IN EACH OF SAID RECESSES AND SUBSTANTIALLY EXTENDING OVER THE REMAINING LONGITUDINAL PORTION THEREOF, SAID FILLER MEMBER BEING SECURED TO ONE OF THE SIDE MEMBERS ADJACENT THE RESPECTIVE RECESS; AND (G) CAP FLANGE MEANS ON EACH ARM AND ON EACH FILLER MEMBER PROJECTING OUTWARDLY OF RESPECTIVE ONES OF SAID RECESSES AND OVERLAPPING SAID SIDE MEMBERS.