Mechanical system and method for continuous working woolen type yarn from cards to spinning frame
OwnerEdo Gelli, Giovanni Bertiinventors
Life of this patent
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Abstract
For working a web of woolen type yarns leaving a finisher card, a condenser head splits the web into parallel bands. The bands are delivered to pairs of rubbing rolls which reciprocate relative to one another to convert the bands to slubbings having false torsion. The slubbings are conveyed to spinning frames.
Claims9
For use with a finisher card having a doffer and comb and one or more spinning frames having drafting rolls and spindles, a system for working woolen type yarns while moving the yarns from the finisher card to the spinning frames comprising:
- a. a condenser head for receiving an undivided card web from the finisher card and for splitting the web into a number of parallel bands.
- b. pairs of parallel elongated, rubbing rolls which rotate about and reciprocate along their longitudinal axis relative to one another, each of said pairs being located closely adjacent to the drafting rolls of an associated spinning frame and receiving and operating on at least one of the parallel bands produced by said condenser head to impart a false torsion to the band before the band is delivered to said closely adjacent drafting rolls of said associated spinning frame.
A process for continuous working of woolen type yarns doffed in an undivided web by a finisher card comprising the steps of
- a. delivering the undivided web to a condenser head;
- b. splitting the undivided web at the condenser head into a number of parallel bands;
- c. passing each of said bands through a pair of rotating, rubbing rollers which are reciprocated along their longitudinal axis relative to one another to convert the band to a slubbing having a false torsion;
- and
- d. transferring each of the slubbings to closely adjacent drafting rolls of an associated spinning frame.
Dependencies are inferred from the claim text.