Expander roller for webs of paper and the like

Details Expander roller for webs of paper and the like Expander roller for webs of paper and the like

1991-11-07

1993-02-23

Stodola, Daniel P.

Advancing material of indeterminate length

By orbitally traveling material-engaging surface

Including details of roll or mount

26105, 492 30, 492 35, B65H 2326, D06C 306

Patent

active

051882736

ABSTRACT:
An expander roller for running webs of paper, textile material or the like has a straight metallic or plastic core and an outer layer consisting of two helically convoluted strips of rubber or other elastomeric material. The two convoluted webs are mirror images of each other with reference to a plane which extends between them and is normal to the axis of the core. The external surface of the outer layer is profiled in that it is provided with grooves cut into or otherwise formed in the strips and forming helices as a result of convolution of the respective strips onto the core. Each helical groove is adjacent a deformable lip which defines a portion of the external surface of the outer layer and can yield in response to engagement with a running web. The strips are permanently or detachably bonded to the peripheral surface of the core.

REFERENCES:
patent: 1728067 (1929-09-01), Livesey
patent: 3603517 (1971-09-01), McDonald et al.
patent: 4566162 (1986-01-01), Brands
patent: 4760947 (1988-08-01), Paquin

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