| 摘要 |
1,230,265. Rollers. JOH. KLEINEWEFERS SOHNE. 19 Aug., 1969 [2 Sept., 1968], No. 41405/69. Heading F2U. A roller is formed with an elastic outer portion comprising fibres of a thermoplastic material compressed at a pressure up to the yield point. The outer portion may be formed from a series of concentric sleeves of fibre web, preferably of polyamide material, mounted on a central shaft and with the fibres crossing, heating and compression of the material being carried out on a calendar with heated rollers, preferably until the fibres fuse together at their crossing points. |
