Canvas corner mount

Claim 1

A canvas corner mount, comprising a single sheet of substantially rigid bendable material of rectangular configuration having first and second spaced parallel edges of predetermined length and third and fourth spaced parallel edges of shorter than the predetermined length perpendicular to and joining the first and second edges, said sheet having first and second spaced parallel imaginary lines parallel to the first and second edges, the first imaginary line being the same distance from the first edge as the second imaginary line is from the second edge, a triangular notch cutout in said sheet and having its vertex on the first imaginary line and its base opposite said vertex opening at said first edge, and a narrow rectangular notch cutout in said sheet and extending from the second imaginary line to the second edge, the rectangular notch having long sides parallel to the third and fourth edges, a short side on the second imaginary line and another short side opening on the second edge, said cutouts being symmetrical about a center line parallel to the third and fourth edges, said sheet being folded along the first imaginary line to position a first area between the first imaginary line and the first edge perpendicular to the remainder of the sheet and being folded in the opposite direction along the second imaginary line to position a second area between the second imaginary line and the second edge perpendicular to a third area between the imaginary lines and extending parallel to and in the opposite direction from the first area, and said sheet being folded along the center line to close the triangular notch cutout whereby the two parts of the first edge are perpendicular to each other and the rectangular notch becomes a right angle.