Curling device for webs of paper or the like

Details Curling device for webs of paper or the like Curling device for webs of paper or the like

1974-09-10

1976-06-15

Coan, James F.

Tobacco

Tobacco users' appliance

Cigar tip perforators or slitters

131 17R, 162271, B31F 700

Patent

active

039629570

ABSTRACT:
A curling bar for webs of imitation cork or stiff paper which are used for the making of adhesive-coated uniting bands in filter cigarette making machines has a sharp edge which extends transversely of and flexes the running web to eliminate localized stresses in the material of the web and/or to equalize the length of lengthwise extending portions of the web. The bar is pivotable or otherwise movable in its support (e.g., it can be mounted for pivotal movement about an axis which is normal to the edge) so that the bar can change its angular position in response to unequal distribution of web pressure lengthwise of the edge. Such mounting of the bar reduces the likelihood of breaking the web when the length of the one and/or other marginal portion of the web exceeds the length of the median portion.

REFERENCES:
patent: 2070505 (1937-02-01), Beck
patent: 2339070 (1944-01-01), Hayes
patent: 2531619 (1950-11-01), Gonia
patent: 3667380 (1972-06-01), Schlunke et al.

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