| 摘要 |
Apparatus for fabricating flat wood trusses having parallel chords with web members connected thereto by toothed metal plates. A rigid jig bed is provided on which to assemble the components between a fixed bar on one side of the bed and a laterally movable bar on the other side. Fluid cylinder means mounted on the bed engage the movable bar to clamp the assembled components against the opposite rigid bar. A single stand of pinch rolls at one end of the bed rolls the metal toothed plates into the wood joints and is also adapted to apply toothed metal reinforcing strips to the chords prior to assembly.
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