Materials & Techniques
A bar on a backstrap loom usually similar to the front loom bar, and placed next to it on top of the warp or woven fabric. The two bars are jointly rotated clockwise in order to shorten the warp and, on Ecuadorian looms, to secure it for weaving. Attaching the backstrap around the end of the farther of the two bars and underneath the nearer one prevents the warp from unrolling.
Ann Rowe, “Glossary,” in Weaving and Dyeing in Highland Ecuador, edited by Ann Rowe, Laura Miller and Lynn Meisch (Austin: University of Texas Press, 2007): 289-295.