US Patent 3,965,939 (29 June 1976) to Karol Kulczycki, Burns Darsie and Norris F. Dow describes an elongate strip heddle for machines that weave triaxial fabrics. The heddle has a warp guide opening in a reduced-width frontal portion and a small lateral guide tab that cooperates with adjacent heddles. It moves longitudinally to form sheds and is shifted weftwise to make the warps run diagonally. The document includes the claims, a description of the machine arrangement with two staggered rows of heddles, shifting and guide bars, dimensions, and patent drawings (Figs. 1-5). It is a printout from the USPTO database plus the original patent pages.