Textiles: spinning – twisting – and twining – Apparatus and processes – False twist device
Patent
1986-10-02
1987-11-10
Petrakes, John
Textiles: spinning, twisting, and twining
Apparatus and processes
False twist device
57339, 57348, D02G 104, D02G 108
Patent
active
047048581
ABSTRACT:
Apparatus for false twisting yarns is of the type comprising three rotatable shafts, each shaft having a plurality of discs thereon. The shafts are mounted on a base member and two shafts are pivotal about axes which with the axis of the third shaft are at the apices of an equilateral triangle. The third shaft, and spindles providing pivots for the movable arms which carry the other shafts, each have a respective first drive pulley thereon and a primary drive belt passes around the three pulleys. The spindles each also have second drive pulley thereon and each movable shaft has a third drive pulley thereon, a second drive belt passing around each respective pair of second and third drive pulleys. A cam mounted on the third shaft has two like operating portions into contact with which a respective follower part of each movable shaft is biassed. Movement of the shafts may be made without alteration of the tension in, or reverse bending of, the belts.
REFERENCES:
patent: 3885378 (1975-05-01), Schuster
patent: 4060967 (1977-12-01), Lorenz
patent: 4110962 (1978-09-01), Schuster et al.
patent: 4134252 (1979-01-01), Otaki et al.
patent: 4240248 (1980-12-01), Raschle
patent: 4485617 (1984-12-01), Schmitt et al.
patent: 4584831 (1986-04-01), Schuster et al.
Naylor Geoffrey
Wilkinson Philip M.
Petrakes John
Rieter Scragg Limited
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