Decorative molding for corner between two walls and ceiling in room has flat right-angled equilateral triangles flush with walls and ceiling in corner, accommodating concave spherical molding surface

摘要

The decorative insert (3) has a molding (1) with a concave spherical surface (10) filling the corner (2) between two walls and the ceiling in a room. The edges of the curved moldings are arcs of circles. They intersect flat right-angled equilateral triangles (4-6) flush with the walls and ceiling in a 90 degree corner. Each short side (7-9) is common to two triangles at right-angles to each other. And fits into the junction between two walls or a wall and the ceiling. Each hypotenuse (14) extends diagonally across the corner of a wall and the ceiling.