Web threading system

Details Web threading system Web threading system

1977-11-21

1979-01-30

Schacher, Richard A.

Advancing material of indeterminate length

Processes

By fluid current

226 91, 226 97, 226197, B65H 1732

Patent

active

041368088

ABSTRACT:
A system for directing the tail of a web of flexible material to a predetermined location laterally offset from the normal path of movement of said web. The system includes a first Coanda nozzle directing a gaseous flow along a chute associated therewith and comprising a bottom wall and side walls, so that the gaseous flow induced by the Coanda nozzle entrains the web tail and causes it to move laterally in the web plane as it is directed to the predetermined location. A second Coanda nozzle is positioned downstream from the first Coanda nozzle and is angularly disposed relative thereto so that the web is again moved laterally about the web plane an additional incremental amount.

REFERENCES:
patent: 3125268 (1964-03-01), Bartholomay
patent: 3705676 (1972-12-01), Overly
patent: 4043495 (1977-08-01), Sander

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