发明名称 METHOD AND APPARATUS FOR CORELESS SPOOL PRODUCTION
摘要 Coreless spools, alternately wound on two spindle mounted mandrels from a continuous web supply of thin sheet material, are jet propulsively ejected from the mandrels by pressurized fluid conducted thereto. Loose end portions of the completed spools are rewrapped about the spool body by bridging a gap between two conveyors and two air curtains.
申请公布号 US3856226(A) 申请公布日期 1974.12.24
申请号 US19730424343 申请日期 1973.12.10
申请人 WESTVACO CORP,US 发明人 DOWD D,US
分类号 B65H19/22;(IPC1-7):B65H17/02 主分类号 B65H19/22
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