Yarn covering apparatus and method
AssigneeAdria Limited
InventorThomas Leslie Patterson
Life of this patent
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Abstract
A method of covering a core yam with a cover yarn characterised in that it includes supplying a package of core yam on a member which is fixed against rotation, supplying a package of cover yam, guiding the cover yarn to form a loop which on rotation about an axis defines an envelope which surrounds the core yarn package, drawing off core yarn along the axis of rotation of the envelope in the direction away from the cover package so that when the core yarn intercepts the envelope it is covered by cover yarn.
Claims23
A method of covering a core yarn with a cover yarn, the method including the steps of supplying a package of core yarn on a member which is fixed against rotation, supplying a package of cover yarn guiding the cover yarn to form a loop which on rotation about an axis defines an envelope which surrounds the core yarn package, drawing off core yarn along the axis of the envelope in the direction away from the cover yarn package so that when the core yarn intercepts the envelope it is covered by cover yarn, wherein the cover yarn is positively guided inwardly by a rotatable member over substantially the entire distance from or near to the periphery of the rotatable member to the centre of the rotatable member, such that cover yarn exiting from the rotatable member at its centre is wound around the core yarn from a direction generally perpendicular thereto.
An apparatus for covering a core yarn with a cover yarn, the apparatus including a package of core yarn on a member which is fixed against rotation, a package of cover yarn, and means for guiding the cover yarn to form a loop which on rotation about an axis defines an envelope which surrounds the core yarn package, and means for drawing off core yarn along the axis of the envelope in the direction away from the cover yarn package so that when the core yarn intercepts the envelope it is covered by the cover yarn, the apparatus including a rotatable member including guide means for positively guiding the cover yarn over substantially the entire distance from or near to the periphery of the rotatable member to the centre of the rotatable member, whereby cover yarn exiting from the rotatable member at its centre is wound around the core yarn from a direction generally perpendicular thereto.
Dependencies are inferred from the claim text.