WOVEN FRAME OF CONVEYOR BELT Russian patent published in 1999 - IPC

FIELD: conveyor belts. SUBSTANCE: woven frame has two parallel superposed on each other woven structures of the same weave of at least two layers and joined together by warp threads passing from upper layer to lower one and back and by one periphery layer of weft threads of each of two woven structures combined into one common central layer. Each of two combined woven structures has threads of filling weft. Central layer has in addition to connecting weft threads, weft core-spun yarns. In this case, repeat of warp weave in central weft layer equals 8-12, and weft filling of central layer is twice as high as filling of the remaining weft layer with ratio of linear densities of warp and weft of woven frame ranging within 0.1-1.0. EFFECT: optimal longitudinal flexibility and lateral rigidity. 2 dwg, 1 tbl