Apparatus for transporting thin metal sheets longitudinally with

Details Apparatus for transporting thin metal sheets longitudinally with Apparatus for transporting thin metal sheets longitudinally with

1992-11-18

1995-03-07

Stodola, Daniel P.

Advancing material of indeterminate length

Means to engage longitudinally spaced modifications in material

Rotating sprocket

226 82, G03B 124

Patent

active

053950283

ABSTRACT:
A thin strip or flat web of metal material is transported longitudinally in a stable manner and without contact to the working surface by providing a generally constant transverse tension to the web. Equally spaced holes are punched along the outer edges of the web and two oppositely arranged sprockets engage the holes and drive the metal strip without any contact across the width of the strip. The two sprockets are slidably engaged for concurrent rotation with each other and biased outwardly by a spring to provide the constant transverse tension as the web is driven longitudinally.

REFERENCES:
patent: 3656602 (1972-04-01), Konkel et al.
patent: 4026756 (1977-05-01), Stanfield et al.
patent: 4412637 (1983-11-01), Berger
patent: 4571104 (1986-02-01), Jung et al.
patent: 4990010 (1991-02-01), Mizutani
patent: 5017943 (1991-05-01), Ogita et al.
patent: 5217317 (1993-06-01), Ruhe et al.

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