Device for truing planks

Apparatus for straightening twisted boards, comprising:

• a set of first plates and a set of second plates, said sets forming therebetween a substantially narrow board-guiding channel having a board inlet and a board outlet, said channel defining a longitudinal axis,
• said first plates being arranged adjacent one another such that first planes defined by said first plates are substantially parallel, said first plates being pivotable about a common first pivot axis situated adjacent said board inlet, said first pivot axis extending transversely of said first planes,
• said second plates arranged adjacent one another such that second planes defined by said second plates are substantially parallel to one another and to said first planes, said second plates being pivotable about a common second axis oriented substantially parallel to said first pivot axis adjacent said board inlet, said channel being defined between opposing edges of said first and second plates, and
• pivot drive means for effecting relative pivoting of said first plates about said first pivot axis, and for effecting relative pivoting of said second plates about said second pivot axis, to provide said channel with a twisted configuration along its longitudinal length.