Yarn transporting apparatus

Details Yarn transporting apparatus Yarn transporting apparatus

1974-07-03

1976-06-22

Schacher, Richard A.

Advancing material of indeterminate length

By orbitally traveling material-engaging surface

With control or adjustment means

226187, B65H 1722

Patent

active

039646572

ABSTRACT:
High speed yarn transporting apparatus which requires at least one and preferably two transporting rolls with cylindrical yarn contacting surfaces containing shallow grooves or flutes which preferably extend axially of each roll. When constructed as a pair of nip rolls, the apparatus advantageously includes a jet operated guide member on the discharge side of the nip with means to inject air into a thread guide channel extending in the yarn transporting direction. A number of preferred embodiments of the rolls and a jet operated guide member are disclosed for smooth and positive transport of a yarn at speeds of 3,000 meters per minute or more.

REFERENCES:
patent: 2915170 (1959-12-01), Slayter
patent: 3372446 (1968-03-01), Shichman
patent: 3462811 (1969-08-01), Burgess
patent: 3636600 (1972-01-01), Mertens
patent: 3646646 (1972-03-01), Koizumi

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