Bergman

a supplementary-weft unit weave with three tie-down ends and a plain-weave ground cloth. The ratio of tie-down ends to pattern ends is 1:1; there are 16 ends in a structural unit; each block requires one pattern shaft; tie-down ends alternate with pattern ends in the threading; tie-down ends are threaded in 'rosepath' order (3-1-2-3-1-3-2-1). The threading for one unit of Block A is 3-4-1-4-2-4-3-4-1-4-3-42-4-1-4. A block can be smaller than the structural unit: 3-4-1-4-2-4-3-4-1-5-3-5-2-5-1-5 is one unit but contains both A(4) and B(5).