Transverse severing apparatus for webs

Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With stretching or tensioning means

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Details

156251, 156515, 493203, 493204, B32B 3118

Patent

active

044902077

ABSTRACT:
In a transverse severing apparatus for webs of thermoplastic material, two parallel pressure bars are lowerable onto and raisable from a section or sections to be severed from the web. The upstream pressure bar clamps the leading end of the web to a backing bar. The second pressure bar, which is disposed between a severing knife and the upstream bar, tensions the web clamped between a pair of feed rollers and the upstream pressure bar before the severing knife cuts the web.

REFERENCES:
patent: 3384528 (1968-05-01), Lehmacher et al.
patent: 3868290 (1975-02-01), Lagain
patent: 3992981 (1976-11-01), Stock
patent: 4268346 (1981-05-01), Achelpohl

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