Suction air nozzle for forming a thread reserve
AssigneeSchubert & Salzer
InventorsRupert Karl, Edmund Schuller
Life of this patent
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Abstract
An elongated suction air nozzle provided for forming a thread reserve in the form of a loop in thread running past the mouth thereof. A constriction is provided in the nozzle and extends for the whole length of the expected loop size. The constriction divides the cross-sectional area of the nozzle into two partial areas resulting in air flow in the central region of the nozzle being of a greater velocity than in the two partial remote areas.
Claims6
An elongated suction air nozzle (1) for forming a thread reserve in the form of a loop in thread running past the mouth of said nozzle, said elongated air nozzle having an inside dimension extending in a direction of thread travel which is substantially greater than a smaller inside dimension transverse thereto producing an elongated cross-section, the improvement comprising:
- a constriction (13) provided in said nozzle and extending for the whole length of the expected loop size;
- and
- said constriction (13) dividing said cross-sectional area (3) of said nozzle as seen in the direction of travel of said thread into two partial areas (30, 31;
- 32, 33).
Dependencies are inferred from the claim text.