Notched roller for producing fancy yarns in spinning-twisting ma

Details Notched roller for producing fancy yarns in spinning-twisting ma Notched roller for producing fancy yarns in spinning-twisting ma

1981-08-07

1983-12-06

Petrakes, John

Textiles: spinning, twisting, and twining

Strand structure

Longitudinal variation

57 18, 57 91, D02G 336, D02G 334

Patent

active

044185235

ABSTRACT:
A spinning-twisting machine with a hollow spindle, particularly for the production of fancy yarns, includes a drawing frame for an assembly of fibers. A drawing roller is contained in the drawing frame and it is notched at spaced locations around its circumferential surface for suppressing, locally and temporarily, the nip between a pair of drawing rollers. An assembly of fibers is passed between the drawing rollers and then through a hollow spindle where a covering yarn is wrapped around the assembly of fibers. Take-up cylinders draw the combined fancy yarn through the spindle at a peripheral speed greater than the speed of feed rollers supplying the assembly of fibers to the drawing rollers.

REFERENCES:
patent: 386623 (1888-07-01), Boyd
patent: 3074223 (1963-01-01), Servage
patent: 3133401 (1964-05-01), Servage
patent: 3144747 (1964-08-01), Palm et al.
patent: 3394538 (1968-07-01), Neff
patent: 3831369 (1974-08-01), Northup et al.

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