Open-end yarn piecer

Details Open-end yarn piecer Open-end yarn piecer

1984-05-18

1987-09-01

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Piecing up

57 22, 57 80, 57 81, D01H 1502

Patent

active

046899456

ABSTRACT:
The starting or re-piecing of a yarn in an open end spinning machine is accomplished during full speed rotation of the spinning unit. A travelling piecer provides a fixed length of yarn to be back-fed into the spinning unit. A control which is responsive to the speed of rotation of the spinning unit causes the nip rolls to close together in order to deliver the new yarn from the spinning unit at the operating speed of the spinning unit.

REFERENCES:
patent: 3601969 (1971-08-01), Susami et al.
patent: 3685267 (1972-08-01), Landwehrkamp et al.
patent: 3810352 (1974-05-01), Miyazaki et al.
patent: 3858385 (1975-01-01), Shinkai et al.
patent: 4041684 (1977-08-01), Kamp
patent: 4120140 (1978-10-01), Raasch et al.

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