Textiles: spinning – twisting – and twining – Apparatus and processes – False twist device
Patent
1979-09-27
1980-12-23
Watkins, Donald
Textiles: spinning, twisting, and twining
Apparatus and processes
False twist device
57348, 57339, D02G 104
Patent
active
042402484
ABSTRACT:
A friction false twist device is of the type comprising three parallel shafts located at the corners of an equilateral triangle, and carrying rotationally symmetric friction elements. At least one of the shafts can be shifted in relation to the other shaft or shafts so as to open the device for threading. An additional shaft is arranged in relation to the three shafts carrying the friction elements so that, if connected by a line, the centers of the four shafts preferably would lie at the corners of a generally kite-shaped quadrilateral. Each of the four shafts carrys a whorl, the four whorls being drivingly interconnected by an endless belt of relatively minimum elasticity. At least one other shaft is coupled with said shiftable shaft for conjoint movement such that changes in the circumferential length of the quadrilateral caused by movement of the shiftably mounted shaft are substantially compensated by conjoint movement of the coupled shaft. Accordingly, shifting from working positions to threading-up positions results in no more than a minimum modification of the belt length, thus permitting the use of belts having minimum elasticity and support structure.
REFERENCES:
patent: 3385047 (1968-05-01), Schwabe
patent: 3530659 (1970-09-01), Parker
patent: 3885378 (1975-05-01), Schuster
patent: 4047374 (1977-09-01), Venot
patent: 4060967 (1977-12-01), Lorenz
patent: 4124974 (1978-11-01), Taylor
Heberlein Maschinenfabrik AG
Watkins Donald
LandOfFree
Devices for texturing yarns by imparting false twist by friction does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Devices for texturing yarns by imparting false twist by friction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Devices for texturing yarns by imparting false twist by friction will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2235984