Textiles: fiber preparation – Working – Drafting
Patent
1990-10-03
1992-02-18
Schroeder, Werner H.
Textiles: fiber preparation
Working
Drafting
19245, D01H 566
Patent
active
050881574
ABSTRACT:
A unit drafting mechanism of a spinning machine, having at least one unit drafting mechanism and provided with a pair of slide metals disposed on roller stands facing each other, and a plurality of bottom rollers and top rollers journaled on these slide metals in a rotatable condition, wherein each bottom roller is provided with an axial air passage formed coaxially with its center axis, air jet apertures are radially formed at both end portions near the bearing bores of the slide metals, each aperture is connected to the axial air passage, and the axial air passage is connected to a source of compressed air, whereby the possible deposition of flies in the circumference around the journal portions of the draft rollers can be effectively eliminated by continuously or intermittently supplying compressed air through the axial air passage of the bottom rollers.
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patent: 3251100 (1966-05-01), Ingham
Tomoto Yoshiharu
Yasuda Hironori
Howa Machinery Ltd.
Izaguirre Ismael
Lambert Dennis H.
Schroeder Werner H.
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