Suction box for stabilizing web at connecting point

Details Suction box for stabilizing web at connecting point Suction box for stabilizing web at connecting point

1988-06-13

1990-06-26

Wityshyn, Michael

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Means joining flexible indefinite length or endless bodies...

162193, 162352, 226 91, 226198, 242 583, 242 585, B65H 1918, B65H 1920

Patent

active

049369423

ABSTRACT:
Apparatus for stabilizing the trailing end of a web that is to be spliced to the leading end of a new web includes a knife for severing the old web and for creating a tail that must be stabilized, a suction box over which the trailing end passes, which provides stability to the trailing end, a pressure roll movable to move the cut trailing end of the old web against the leading end of the new web and a leaf-spring-like extension extending downstream of the suction box to the connection point or splice point between the webs. The extension is deflectable with the pressure roll and the extension carries the vacuum of the suction box further downstream and also supports the trailing end of the cut old web. The extension is cantilevered to the downstream side of the suction box.

REFERENCES:
patent: 2534026 (1950-12-01), Hurxthal
patent: 2664139 (1953-12-01), Speed et al.
patent: 2928465 (1960-03-01), Wrist
patent: 3140225 (1964-07-01), Truxa
patent: 4278489 (1981-07-01), Horsley
patent: 4502231 (1985-03-01), Fissman et al.
patent: 4726502 (1988-02-01), Cryderman
Voith Brochure, p. 2579e (Oct. 1987), pp. 22 and 24.

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