发明名称 Method of making transport drum
摘要 A method and apparatus are described for providing a transport drum for use in equipment for the wet processing of photographic film and/or papers. A supporting insert is mounted on and secured to an axle; the insert includes a plurality of longitudinally extending ridges having T-shaped cross-sections. A suitable foam material having, for example, a rectangular or square cross-section, is drilled with a hole to permit the insertion of the axle and supporting insert. The foam material is forced over the supporting insert to insure intimate and firm contact between the surface of the supporting insert and the foam. The outer surface of the foam material is then shaped by conventional techniques to form a cylindrical drum comprising an axle, a supporting insert with longitudinal ridges, and cylindrically formed foam material.
申请公布号 US4299022(A) 申请公布日期 1981.11.10
申请号 US19790069190 申请日期 1979.08.23
申请人 GTC GIBSON TECHNICAL COMPANY LIMITED 发明人 KUMMERL, KLAUS
分类号 B29D99/00;F16C13/00;G03D3/13;(IPC1-7):B23P11/02 主分类号 B29D99/00
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