Web guiding apparatus

Details Web guiding apparatus Web guiding apparatus

1982-06-28

1984-06-12

Levy, Stuart S.

Advancing material of indeterminate length

With material-responsive control means

To position material laterally

226 21, B65H 2510, B65H 2526, B65H 2302

Patent

active

044536593

ABSTRACT:
A tilt-frame web guiding apparatus for correcting the deviation of a moving web from a true path of the web, in which an edge of the web is parallel to and a predetermined distance from a reference line. An edge sensor senses the edge of the web on an axially movable web exit guide roller, and in response thereto actuates a motor or cylinder for axially moving the web exit guide roller in a direction to maintain the web edge under the sensor. The web exit guide roller is coupled to a pivotally mounted web entry guide roller such that axial movement of the exit guide roller imparts pivotal movement to the entry guide roller for correcting any deviation of the moving web from its true path.

REFERENCES:
patent: 2827809 (1958-03-01), Beam
patent: 3224418 (1966-04-01), Henderson
patent: 3581963 (1971-06-01), Rule
patent: 3682362 (1972-08-01), Ott, Jr.
patent: 3724732 (1973-04-01), Bonner
patent: 3786974 (1974-01-01), Kron
patent: 4069959 (1978-01-01), Bartell et al.

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