发明名称 System for sensing a discontinuity in a paper web and containing web puncturing means across the web width
摘要 A system for sensing a web break using web break detection instruments. Upon sensing a break a strategically located, full web width deflection cam bears against the machine web upstream of the detected break. Under the bias of the deflector, the web running route is pushed into a saw-toothed cutter blade. Saw-tooth points simultaneously penetrate the web along a line traversing the full web width. Such line of web penetration becomes an immediate line of full width web breakage but at a location along the machine length designed to accommodate the waste production (broke) until web continuity along the remainder of the machine length is restored.
申请公布号 US4799997(A) 申请公布日期 1989.01.24
申请号 US19870082274 申请日期 1987.08.06
申请人 WESTVACO CORPORATION 发明人 THOMPSON, ROBERT H.
分类号 D21F7/04;(IPC1-7):D21F7/04 主分类号 D21F7/04
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