| 摘要 |
A bracing system for canvas stretcher frames allows for positioning of one or more braces in a stretcher bar frame, to prevent inward pulling of the stretcher bars under canvas tension. The braces are modular in design and allow convenient assembly of multiple-braced stretcher bar frames. The braces have tenons which engage with a groove extending around the inner periphery of the stretcher bar frame, and the braces themselves preferably have grooves in their edges, to receive the tenons of further braces.
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