Methods of conveying a glass ribbon are provided that each includes the step of conveying the glass ribbon over a support device with a cushion of fluid supporting the glass ribbon over the support device. Each method further includes the step of monitoring a physical contact event between the glass ribbon and the support device by detecting an acoustic signal associated with the physical contact event. In further examples, glass ribbon conveying apparatus are provided that each includes a support device configured to support a glass ribbon over the support device with a cushion of fluid. Each apparatus further includes an acoustic sensor configured to monitor a physical contact event between the glass ribbon and the support device by detecting an acoustic signal associated with the physical contact event.

Methods of conveying a glass ribbon are provided that each includes the step of conveying the glass ribbon over a support device with a cushion of fluid supporting the glass ribbon over the support device. Each method further includes the step of monitoring a physical contact event between the glass ribbon and the support device by detecting an acoustic signal associated with the physical contact event. In further examples, glass ribbon conveying apparatus are provided that each includes a support device configured to support a glass ribbon over the support device with a cushion of fluid. Each apparatus further includes an acoustic sensor configured to monitor a physical contact event between the glass ribbon and the support device by detecting an acoustic signal associated with the physical contact event.

A device for pneumatically conveying and guiding a multifilament thread has a closed conveying channel which has a thread inlet opening at one end and a thread outlet opening at the opposite end. An injector zone having at least one compressed air channel which opens into the conveying channel is formed between the thread inlet opening and the thread outlet opening, wherein the compressed air channel can be connected to a compressed air source. In order to avoid blowing air from flowing back from the injector zone at the thread inlet opening, a return flow channel is formed in a channel section of the conveying channel between the thread inlet opening and the opening of the compressed air channel, which return flow channel connects the conveying channel to ambient atmosphere.

A device for pneumatically conveying and guiding a multifilament thread has a closed conveying channel which has a thread inlet opening at one end and a thread outlet opening at the opposite end. An injector zone having at least one compressed air channel which opens into the conveying channel is formed between the thread inlet opening and the thread outlet opening, wherein the compressed air channel can be connected to a compressed air source. In order to avoid blowing air from flowing back from the injector zone at the thread inlet opening, a return flow channel is formed in a channel section of the conveying channel between the thread inlet opening and the opening of the compressed air channel, which return flow channel connects the conveying channel to ambient atmosphere.

With a method for operating a work station of a spinning machine and/or a winding machine, which has a spinning device (1) for producing a thread (2) or a head for delivering a thread (2) along with a winding device (6) for producing a package (7) on a sleeve (18), the winding device (6) features a swivel-mounted coil holder (8) with a coil plate (9) for receiving the sleeve (18) and for catching the thread (2), a powered winding roller (11) for rotating the sleeve (18) and/or the coil (7) along with a thread traversing device, and the work station is equipped with a first suction nozzle (5) that is directed towards the coil circumference and also with a second suction nozzle (12) that is arranged on the side of the coil plate (9) turned away from the package (7) and is directed essentially counter to the first suction nozzle (5) and is spaced apart from it. The thread (2) is arranged for attachment on an empty sleeve (18) in the two suction nozzles (5, 12), and is stretched between in particular by means of negative pressure in at least the second suction nozzle (12). Subsequently, the thread (2) stretched between the two suction nozzles (5, 12) is captured by a catching device, in order to catch the thread (2) and subsequently wind it onto the sleeve (18). With a corresponding work station of a spinning machine and/or a winding machine, the two suction nozzles (5, 12) are arranged at each other in such a manner that the thread (2) may be arranged for the attachment to an empty sleeve (18) in the two suction nozzles (5, 12) and may be stretched between the two suction nozzles (5, 12) by means of negative pressure in at least the second suction nozzle (12) in such a manner that the stretched thread (2) can be captured between the two suction nozzles (5, 12) by a catching device, in order to catch the thread (2) and subsequently wind it onto the sleeve (18).

With a method for operating a work station of a spinning machine and/or a winding machine, which has a spinning device (1) for producing a thread (2) or a head for delivering a thread (2) along with a winding device (6) for producing a package (7) on a sleeve (18), the winding device (6) features a swivel-mounted coil holder (8) with a coil plate (9) for receiving the sleeve (18) and for catching the thread (2), a powered winding roller (11) for rotating the sleeve (18) and/or the coil (7) along with a thread traversing device, and the work station is equipped with a first suction nozzle (5) that is directed towards the coil circumference and also with a second suction nozzle (12) that is arranged on the side of the coil plate (9) turned away from the package (7) and is directed essentially counter to the first suction nozzle (5) and is spaced apart from it. The thread (2) is arranged for attachment on an empty sleeve (18) in the two suction nozzles (5, 12), and is stretched between in particular by means of negative pressure in at least the second suction nozzle (12). Subsequently, the thread (2) stretched between the two suction nozzles (5, 12) is captured by a catching device, in order to catch the thread (2) and subsequently wind it onto the sleeve (18). With a corresponding work station of a spinning machine and/or a winding machine, the two suction nozzles (5, 12) are arranged at each other in such a manner that the thread (2) may be arranged for the attachment to an empty sleeve (18) in the two suction nozzles (5, 12) and may be stretched between the two suction nozzles (5, 12) by means of negative pressure in at least the second suction nozzle (12) in such a manner that the stretched thread (2) can be captured between the two suction nozzles (5, 12) by a catching device, in order to catch the thread (2) and subsequently wind it onto the sleeve (18).

The invention relates to a yarn feed apparatus for a workstation of a cabling machine for feeding a creel yarn from a feed package arranged on a bobbin creel or from a transport conveyor arranged above the cabling machine to a cabling apparatus equipped with a cabling spindle and/or for feeding a starter yarn from the cabling spindle to the creel yarn, a workstation of a cabling machine for producing a cabling twist and a method for feeding a creel yarn using a yarn feed apparatus of this type.

The invention relates to a yarn feed apparatus for a workstation of a cabling machine for feeding a creel yarn from a feed package arranged on a bobbin creel or from a transport conveyor arranged above the cabling machine to a cabling apparatus equipped with a cabling spindle and/or for feeding a starter yarn from the cabling spindle to the creel yarn, a workstation of a cabling machine for producing a cabling twist and a method for feeding a creel yarn using a yarn feed apparatus of this type.