Perforated web transport system

Details Perforated web transport system Perforated web transport system

1993-05-24

1994-03-29

Phan, Hien H.

Severing by tearing or breaking

Breaking or tearing apparatus

Conveyer diverter for moving work

225100, B27B 302

Patent

active

052977110

ABSTRACT:
A perforated web transporting and separating system in which two longitudinally spaced drive mechanisms move the web, an upstream drive and a downstream drive. A platen supports and guides the web; the platen has two sections, and one section can be slightly rotated in the plane of the web with respect to the other section. In separating the web along a row of perforations, the web is driven to a point where the row of perforations is between the platen sections. The upstream drive is stopped while the downstream drive continues to attempt to drive the web, creating a tension in the web across the row of perforations. With the web in tension, one section of the guide platen is articulated relative to the other, tearing the web along the tensioned row of perforations.

REFERENCES:
patent: 2171769 (1939-09-01), Stolar et al.
patent: 2925946 (1960-02-01), Graver
patent: 4136604 (1979-01-01), Schmidt

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