Abstract: Device for applying several substances in a specific pattern on a yarn moving along a path comprising several nozzles for ejecting droplets of substances to the yarn, each of said nozzles ejects droplets of a respective substance to the yarn and being connected with a respective substance supply for supplying a substance having a respective characteristic.

Abstract: The picking apparatus operates to pick a weft yarn into a shed with a predetermined excess length. A weft stretching nozzle receives the excess length at the forward end of the weft thread while stretching the weft yarn from the catching side of the shed. After termination of picking and during an initial phase of the beating-up movement of the reed, the weft yarn is pulled back on the picking side by the amount of the excess length. The stretching effect on the weft yarn is effective and uniform and obtains a better fabric during weaving.

Abstract: A pneumatic weaving machine has an air transport channel for blowing the weft threads, formed by the reed lamellae and open at one side. A plurality of auxiliary blowing nozzles are directed through this open side obliquely inward. The invention provides means whereby the jet direction of the auxiliary nozzles may be influenced such that a larger or smaller component transverse to the weft direction is obtained. Thereby friction forces on the thread may be controlled dependent on the yarn type.

Abstract: In a shuttleless weaving machine with a nozzle for inserting the weft thread. The nozzle is furnished with a mixing tube, and the machine has a weft thread guide channel and a reed carried by a batten, for beating-up a weft thread. A thread clamp or holder is disposed in the mixing tube of the nozzle. This thread clamp or holder clamps the weft thread ahead of the point where the weft thread is cut. Thus, the weft thread is prevented from springing back into the nozzle. Accordingly, damage to the weft thread due to such springing-back is prevented, the weft thread is protected and conserved, the fabric quality is improved, and the area of applicability of jet weaving machines is broadened. In addition it is ensured that the leading end of the weft thread is blown into the weft thread guide channel in a position which is as close as possible to the desired position with respect to the guide channel transverse to the insertion direction.

Abstract: The speed of the movement of each weft thread through the shed is correlated with the speed of operation of the weaving machine by measuring the time occupied by movement of a weft thread through the shed, generating a first electrical signal which is a measure of such time, generating a second electrical signal which is a measure of a predetermined fraction of the time occupied by a weaving cycle of the machine, comparing said electrical signals and generating a third electrical signal which is a measure of the discrepancy between the first and second signals, and using the third signal to control one of such speeds in order to eliminate the discrepancy between the first and second signals.

Abstract: A handtool (1,2) for threading e.g. a weft yarn in a pneumatic weaving machine has a conduit (8,9) issuing therefrom, the free end of which constituting a blowing nozzle (9). Adjacent to the nozzle aperture a guiding surface (3) for the yarn is provided. This tool may be used in difficultly accessible points of the yarn path through the machine. The yarn is presented to the guiding surface (3) of the tool whereafter it is carried along by the air jet of the blowing nozzle (9). In one embodiment the tool has a thread guiding eye (4) with a lateral release slot (5).

Abstract: A blowing nozzle for a shuttleless weaving machine, in the shape of a hollow needle with a single blowing aperture or a plurality of elementary apertures in its side wall. The mouth of each aperture is recessed with respect to a surface surrounding it in order to prevent scraping material from warp threads moving past the nozzle. Such material could otherwise block the aperture.

Abstract: A cutting scissors particularly for cutting yarns, having cutting edges provided on rigid scissors blades, whereby the cutting edge or edges respectively is (are) set in a connecting frame secured to the relative scissors blade at the side thereof remote from the other scissors blade, the setting portion for the blade edge bending around the rim of the scissors blade and being connected through a narrowed flexible transition portion to the securing portion of the frame.

Abstract: A substantially flat horizontal conduit has one end connected to a suction device and the other end open and located adjacent to a blowing nozzle adapted to feed the yarn to be stored. A trough-like yarn-storing means is provided immediately above and substantially coextensive with said conduit, and said blowing nozzle is spaced from and directed toward the end of said trough-like means, the axis of said nozzle extending just above the level of said conduit and at the level of said trough-like means.