Grille or divider for a window sash

Claim 1

A divider grille for use in a window sash of the type including a large-area glazing pane to simulate subdivision of said pane into the appearance of a plurality of smaller panes, said divider grille comprising: 1. at least one elongated grille element, having an element face adapted to engage the glazing pane when said divider grille is installed in said window sash; 2. said grille element housing an elongated reinforcing member extending within the grille element interior for substantially the length of the grille element; 3. said reinforcing member being of tempered resilient material preset by said tempering into an arced configuration along its length; 4. the protuberant portion of the arc configuration being positioned in said grille element nearer to said element face thereof than are the ends of the arc configuration; 5. whereby upon installation of said divider grille in said window sash, said reinforcing member resiliently urges said grille element face into contact with said glazing pane and resiliently opposes floatation of said divider grille away from said glazing pane.