Twist-tube for false-twist texturing machines
US3999363A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 30, 1975 |
| Grant date | Dec 28, 1976 |
| Priority date | — |
| Expiry date | Jan 30, 1995 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD02G1/06
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A twist tube for false-twist devices for texturing textile yarns is described wherein the thread guide pin has terminal portions coated with a solderable metal, such as nickel. The terminal portions are mounted in bores on each side of the elongated metal tubular part of the twist tube and at least one of the coated terminal portions is soldered into its associated bore at a temperature which does not modify the crystalline metal structure of the twist tube nor cause thermal deformation of the twist tube. The opposite terminal portion may be similarly soldered into its bore or it may be elastically mounted in its bore. Processes involving soft soldering and hard soldering are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.