A ring spinning machine includes a reciprocating, displaceably supported spindle rail that is driven by a motor via a shaft that passes through the ring spinning machine. The spindle rail is arranged along opposite sides of the ring spinning machine in a longitudinal orientation of the ring spinning machine and is subdivided into sections along each of the opposite sides. Cross braces extend between the opposite sides of the ring spinning machine and connect opposite sections of the spindle rail. The shaft is supported between the sections of the spindle rail. The spindle rail is suspended from at least one cam disc that is seated on the shaft. A circumferentially biased spring is configured with the shaft or the cam disc to provide torsional compensation on the shaft.

A ring spinning machine includes a reciprocating, displaceably supported spindle rail that is driven by a motor via a shaft that passes through the ring spinning machine. The spindle rail is arranged along opposite sides of the ring spinning machine in a longitudinal orientation of the ring spinning machine and is subdivided into sections along each of the opposite sides. Cross braces extend between the opposite sides of the ring spinning machine and connect opposite sections of the spindle rail. The shaft is supported between the sections of the spindle rail. The spindle rail is suspended from at least one cam disc that is seated on the shaft. A circumferentially biased spring is configured with the shaft or the cam disc to provide torsional compensation on the shaft.

A flyer for spinning a fibrous roving onto a bobbin includes a housing defines a central hole passing therethrough. A center rod, supporting the bobbin, is rotated by a spinning system. A battery is contained in the flyer and powers an electric motor. A hollow level wind frame is affixed to the housing and defines an elongated slot passing therethrough. A level wind gear in the level wind frame is rotated by the electric motor. A level wind carriage system is driven by the level wind gear and oscillates repeatedly between a first end and a second end as the level wind gear is rotated, and includes a pawl engaged with the level wind gear. A guide is coupled to the pawl and passes through the elongated slot defined by the level wind frame. The fibrous roving passes through the guide.

A flyer for spinning a fibrous roving onto a bobbin includes a housing defines a central hole passing therethrough. A center rod, supporting the bobbin, is rotated by a spinning system. A battery is contained in the flyer and powers an electric motor. A hollow level wind frame is affixed to the housing and defines an elongated slot passing therethrough. A level wind gear in the level wind frame is rotated by the electric motor. A level wind carriage system is driven by the level wind gear and oscillates repeatedly between a first end and a second end as the level wind gear is rotated, and includes a pawl engaged with the level wind gear. A guide is coupled to the pawl and passes through the elongated slot defined by the level wind frame. The fibrous roving passes through the guide.

A workstation (1) of a two-for-one twisting or cabling machine which comprises a rotatably mounted spindle (2) and a balloon-yarn-guide-eye (9) height-adjustable by means of a drive (18, 29) coupled to a control device (20) which controls the drive (18, 29) in such a manner that it displaces the balloon-yarn-guide-eye (9) between operating positions (AP.sub.1, AP.sub.2) dependent upon production parameters and a resting position (RS) advantageous in the case of production interruptions and transient operating phases associated with the latter. A device (21, 23, 24, 25) is present for detecting a measured value (i), which is made available to the control device (20) and which causes the control of the drive (18, 29) to change the position of the balloon-yarn-guide-eye (9).

A workstation (1) of a two-for-one twisting or cabling machine which comprises a rotatably mounted spindle (2) and a balloon-yarn-guide-eye (9) height-adjustable by means of a drive (18, 29) coupled to a control device (20) which controls the drive (18, 29) in such a manner that it displaces the balloon-yarn-guide-eye (9) between operating positions (AP.sub.1, AP.sub.2) dependent upon production parameters and a resting position (RS) advantageous in the case of production interruptions and transient operating phases associated with the latter. A device (21, 23, 24, 25) is present for detecting a measured value (i), which is made available to the control device (20) and which causes the control of the drive (18, 29) to change the position of the balloon-yarn-guide-eye (9).

A ring spinning machine includes a reciprocating, displaceably supported spindle rail that is driven by a motor via a shaft that passes through the ring spinning machine. The spindle rail is arranged along opposite sides of the ring spinning machine in a longitudinal orientation of the ring spinning machine and is subdivided into sections along each of the opposite sides. Cross braces extend between the opposite sides of the ring spinning machine and connect opposite sections of the spindle rail. The shaft is supported between the sections of the spindle rail. The spindle rail is suspended from at least one cam disc that is seated on the shaft. A circumferentially biased spring is configured with the shaft or the cam disc to provide torsional compensation on the shaft.

A ring spinning machine includes a reciprocating, displaceably supported spindle rail that is driven by a motor via a shaft that passes through the ring spinning machine. The spindle rail is arranged along opposite sides of the ring spinning machine in a longitudinal orientation of the ring spinning machine and is subdivided into sections along each of the opposite sides. Cross braces extend between the opposite sides of the ring spinning machine and connect opposite sections of the spindle rail. The shaft is supported between the sections of the spindle rail. The spindle rail is suspended from at least one cam disc that is seated on the shaft. A circumferentially biased spring is configured with the shaft or the cam disc to provide torsional compensation on the shaft.

A method for operating a spindle (2) of a two-for-one twisting or cabling machine which has an adjustable balloon-yarn-guide-eye (9), wherein for the operation of the spindle (2) under production conditions, the balloon-yarn-guide-eye (9) is adjusted, on the basis of a measured value (i) correlating with the energy consumption of the spindle drive (3), to a first operating position (AP.sub.1), in which a position-dependent minimum of the energy consumption of the spindle drive (3) is reached.

A method for operating a spindle (2) of a two-for-one twisting or cabling machine which has an adjustable balloon-yarn-guide-eye (9), wherein for the operation of the spindle (2) under production conditions, the balloon-yarn-guide-eye (9) is adjusted, on the basis of a measured value (i) correlating with the energy consumption of the spindle drive (3), to a first operating position (AP.sub.1), in which a position-dependent minimum of the energy consumption of the spindle drive (3) is reached.