Outside corner trim for building

DETAILED DESCRIPTION What is claimed is: 1.
An outside corner trim piece of integral one piece construction, said piece comprising an extrusion and is extruded from a plastic material such as rigid vinyl and having a pair of flanges of substantially equal length disposed substantially at right angles to each other, a bulb edge on each said flange defining the depth of at least one pocket on the inner side of each flange, a flange projecting inwardly at substantially right angles from one of said first-named flanges, and a pointed barb on the free end of the inwardly projecting flange having sharp shoulders projecting up on opposite sides of the last-named flange said pointed barb of said inwardly projecting flange entering an opening betweeen an edge of a wall member and an adjacent inside face of an adjacent wall member at an outside building corner and said sharp shoulders holding the barb against withdrawal to retain the corner trim piece in position, and wherein said corner trim piece includes mastic cement in said pockets adhering said corner trim piece to the supporting outside building corner surface.




Description:
BACKGROUND OF THE INVENTION Heretofore, corner pieces for use in building construction, or for the assembly of partitions or the like, were either fabricated at the erection site from available materials or comprised prefabricated members which were manually held in place while being assembled with the structure and secured in fixed relation to the building structure.
Corner pieces of sheet metal have been utilized to provide a closure at such positions and metal angle sections, or other formations, have been used to frame a corner, but with these prior arrangements it has been necessary physically to maintain such members in proper relation to the supporting structure while the member was being secured.
Such practices were time consuming and frequently difficult and consequently expensive from the standpoint of labor and the man hours involved in completing structures of this type