Advancing material of indeterminate length – Processes – By fluid current
Patent
1975-05-27
1976-12-28
Schacher, Richard A.
Advancing material of indeterminate length
Processes
By fluid current
226 91, 226 97, B65H 1732
Patent
active
039996964
ABSTRACT:
A system for directing a web of flexible material to a predetermined location and more particularly to a system for directing the free end or tail of the web into threading engagement with rolls forming a hip or the like. In the system a gas such as air is directed through a restricted opening under pressure whereupon it attaches itself to a flow attachment surface due to the "Coanda effect", is directed to the predetermined location and entrains ambient air. The tail of the web is placed into the path of the moving gas and entrained thereby. The gas is moving at a velocity greater than the velocity of the moving web and thus the web tail is straightened out and directed to the predetermined location.
REFERENCES:
patent: 3462054 (1969-08-01), Foor
patent: 3559301 (1971-02-01), Fraser
patent: 3587177 (1971-06-01), Overly
patent: 3705676 (1972-12-01), Overly
patent: 3711960 (1973-01-01), Overly
Hogland Gerald H.
Pollard Fred L.
Reba Imants
Crown Zellerbach Corporation
Horton Corwin R.
Lampe Thomas R.
Schacher Richard A,.
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