Window sash and method for making same

Claim 1

A WINDOW SASH COMPRISING A PAIR OF SPACED APART PARALLEL STILES JOINED TOGETHER AT ONE END BY A FIRST RAIL WHICH IS INTEGRAL THEREWITH, SAID STILES AND FIRST RAIL BEING CHANNEL SECTIONS COMPRISING SPACED APART WALLS JOINED TOGETHER BY A WEB, THE JUNCTURE OF EACH STILE WITH THE FIRST RAIL DEFINING A CORNER CONSTRUCTION IN WHICH THE CHANNEL WEB FORMS THE OUTER CORNER SURFACE AND THE CHANNEL SIDE WALLS EXTEND INWARDLY THEREFROM, THE CHANNEL SIDE WALLS OF EACH CORNER CONSTRUCTION HAVING A SLIT THEREIN EXTENDING FROM THE INNER EDGE THEREOF TOWARDS THE WEB AND TERMINATING AT A POINT SHORT OF THE WEB, A CORNER BRACKET PROVIDED AT THE JUNCTURE OF EACH STILE WITH THE FIRST RAIL, SAID BRACKET, STILES AND FIRST RAIL HAVING REGISTERING OPENING MEANS, A PAIR OF LOCKS EACH HAVING STRUCTURE WITH OPENING MEANS IN REGISTRY WITH THE OPENING MEANS OF ONE CORNER BRACKET, THREADED FASTENING MEANS EXTENDING THROUGH EACH LOCK OPENING MEANS INTO THREADED ENGAGEMENT WITH THE OPENING MEANS OF ONE CORNER BRACKET TO THEREBY SECURE EACH LOCK TO THE SASH AND REINFORCE THE JUNCTURES OF THE STILES AND FIRST RAIL, A SEPARATE SECOND RAIL HAVING A CHANNEL SECTION JOINING THE STILES AT THE OTHER ENDS THEREOF, A CORNER BRACKET PROVIDED AT THE JUNCTURE OF EACH STILE WITH THE SECOND RAIL, THREADED FASTENING MEANS SECURING SAID STILES, SECOND RAIL AND CORNER BRACKETS TOGETHER, SAID STILES AND RAILS DEFINING A FRAME, AND A WINDOW PANE RECEIVED IN SAID FRAME.