Textiles: spinning – twisting – and twining – Apparatus and processes – Piecing up
Patent
1978-08-16
1981-07-07
Petrakes, John
Textiles: spinning, twisting, and twining
Apparatus and processes
Piecing up
57 93, D01H 1502
Patent
active
042767415
ABSTRACT:
To start-spin a thread with open-end spinning, the end of the thread is inserted into a spinning rotor against the normal direction of draw, placed on a ring there formed of fed fibres and drawn off again. The end of the thread is placed on the ring at a start-spinning speed which is lower than the operating speed of the spinning rotor. In order to avoid undesired changes in the thickness and strength, etc. of the thread at the start-spinning point, the feed of the sliver, which determines the thickness of the ring of fibres located in the spinning rotor, is reduced in a ratio to the normal operating condition which at least approximates the ratio between the start-spinning speed of the spinning rotor and its operating speed.
REFERENCES:
patent: Re30201 (1980-02-01), Stahlecker et al.
patent: 3354626 (1967-11-01), Cizek et al.
patent: 3541774 (1970-11-01), Sterba et al.
patent: 3695017 (1972-10-01), Hori et al.
patent: 3698174 (1972-10-01), Boucek et al.
patent: 3704579 (1972-12-01), Tooka et al.
patent: 3780513 (1973-12-01), Watanabe et al.
patent: 3791128 (1974-02-01), Landwehrkamp et al.
patent: 3810352 (1974-05-01), Miyazaki et al.
Stahlecker Fritz
Zilian Dietrich
Petrakes John
Stahlecker Fritz
Stahlecker Hans
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