초록 ▼

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

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.

대표청구항 ▼

Apparatus for false twisting yarns comprising three rotatable shafts, a plurality of discs mounted on each shaft, a base member having three axes located therein at the apices of an equilateral triangle and on which base member said shafts are mounted, shaft mounting means operable to allow relative

Apparatus for false twisting yarns comprising three rotatable shafts, a plurality of discs mounted on each shaft, a base member having three axes located therein at the apices of an equilateral triangle and on which base member said shafts are mounted, shaft mounting means operable to allow relative movement of said shafts relative to each other whilst maintaining a mutually parallel, equilaterally spaced relative disposition, said mounting means including pivoting means whereby each movable shaft is mounted on said base member so as to be pivotal about a respective one of said axes, the apparatus also comprising three first drive pulleys each being mounted on said base member for rotation about a respective one of said axes, a primary drive belt passing around said first drive pulleys, and for each movable shaft a second drive pulley mounted for rotation with a first drive pulley about a respective axis, a third drive pulley mounted on said each movable shaft and a respective secondary drive belt passing around said second and third drive pulleys.