Rigid Heddles
In rigid heddle looms there is typically a single shaft, with the heddles fixed in place in the shaft. The warp threads pass alternately through a heddle and through a space between the heddles, so that raising the shaft will raise half the threads (those passing through the heddles), and lowering the shaft will lower the same threads—the threads passing through the spaces between the heddles remain in place.
Rigid heddles are thus very different from the heddle in common use, though the single heddle derived from the rigid heddle. The advantage of non-rigid heddles is that the weaver has more freedom, and can create a wider variety of fabrics. Rigid heddle looms resemble the standard floor loom in appearance.
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