| 摘要 |
A stretcher frame for an artist's painting canvas which include a plurality of individual frame members specifically designed to permit the outer peripheral dimensions thereof to be expanded to enlarge the dimensions of the frame and stretch the canvas. The structure includes a sliding bridge connection between the adjacent frame members in a manner to cause tilting of the inner peripheral edges rearwardly away from the canvas secured to said outer edges and thus, prevent brush contact with the underlying frame surface during the painting operation. A spreading force is applied as by wedges, to the ends of said adjacent members to spread the adjacent mating surfaces apart to expand the outer frame dimensions.
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