Apparatus for correctly feeding continuous strips with a shaped

Details Apparatus for correctly feeding continuous strips with a shaped Apparatus for correctly feeding continuous strips with a shaped

1988-10-11

1990-05-15

Gilreath, Stanley N.

Advancing material of indeterminate length

By intermittent material-mover

Comprising material-moving roll

226174, 226178, 226196, 226199, B65H 2004

Patent

active

049250795

ABSTRACT:
Apparatus for accurately feeding a continuous web having opposite generally sinuous longitudinal edges each defined by alternating convex and concave edge portions by utilizing a drive and idle roll for intermittently feeding the web in a predetermined direction, lateral generally C-shaped guides spaced a distance from each other corresponding to the distance between the longitudinal edges of the web, sensing elements located above elongated slots in upper arms of the webs for sensing along a line in chordal relationship to the convex and concave edge portions, and a mechanism responsive to the sensing elements for intermittently driving the drive roller to stepwise feed the web in the predetermined direction.

REFERENCES:
patent: 2250138 (1940-02-01), Sheperdson
patent: 2896505 (1959-07-01), Nations
patent: 3026012 (1960-03-01), Clay
patent: 3782616 (1974-01-01), Surber, Jr.
patent: 3837549 (1974-09-01), Sengewald
patent: 4034905 (1977-07-01), Lansmich
patent: 4158429 (1979-06-01), Ohmori
patent: 4341155 (1982-07-01), Relyea et al.
patent: 4420107 (1983-12-01), Seyffert et al.
patent: 4625902 (1986-12-01), Billberg
patent: 4771928 (1988-09-01), Okada

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