False twisting unit
AssigneeHollandse Signaalapparaten B.V.
InventorJan Nijhuis
Life of this patent
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Abstract
A false twisting unit consists of a body through which a passage is provided, which is surrounded by a cavity connected with said passage through tangential air ducts. A first channel passes through said body and opens into said cavity. Through said channel compressed air can be supplied, producing a rotating air column in the passage. A second channel passes through said body in such a way that liquid at or near the mouth of the tangential air ducts can be introduced into said passage.
Claims9
A false twister comprising a body having a passage therethrough for passing a strand, said passage having a substantially cylindrical portion surrounded by a first cavity, first channel means for supplying compressed air to said first cavity, said cavity communicating with said portion through tangential air ducts having mouths opening into said portion for producing a rotating air column;
- a second cavity surrounding said passage;
- and second channel means comprising said second cavity and liquid ducts communicating from said second cavity tangentially to said passage for supplying liquid to said passage near the mouths of said ducts.
A method of applying liquid to a strand, comprising:
- a. passing the strand through a passage in a false twister,
- b. applying air through tangential air ducts in said false twister to provide a rotating air column in said passage, and
- c. applying the liquid through separate tangential ducts opening into the passage near the tangential air ducts.
Dependencies are inferred from the claim text.