| 摘要 |
845,547. Fabric for bearings &c. WHITE, C. S. Oct. 16, 1956 [Nov. 4, 1955(2)], No. 31494/56. Drawings to Specification. Class 142(4). [Also in Groups XXVI and XXXIV] A fabric for bonding to a bearing or sealing member to constitute the working surface thereof comprises threads of synthetic resin having a low coefficient of friction on one surface and threads more easily bondable to the member on the other surface. A two-ply fabric has one warp of low-friction threads, the other warp and the weft being of bondable threads; the plies are bound together by weft threads producing a 3:1 twill weave on the bondable surface. Another two-ply fabric has one ply plain-woven from low-friction warp and weft and the other plainwoven from bondable warp and weft, the plies being spaced apart by numerous stuffer warp threads and stitched by binder warp threads. A single-ply tubular fabric is woven 4:1 twill from a low-friction warp and a bondable weft. The low-friction threads may be of polytetrafluoroethylene, monochlorotrifluoroethylene, nylon, polyester terephthalate, polythene, or a copolymer of vinylidene chloride and vinyl chloride. The bondable threads may be of cotton, rayon, cellulose ester, wool, glass or nylon. Canadian Specification 675,632 is referred to. |
