Abstract: There are disclosed a method of and an apparatus for controlling weft threads, particularly in jet weaving machines with alternating insertion of two different wefts into a shed. At least during the inserting time of the first weft the end of the second weft inserted into the shed before said first weft is held and tensioned and is cut upon finishing the inserting operation of said first weft.The apparatus for controlling wefts includes a pair of inserting jets and weft directing means with guides for each of the weft threads, weft traps being provided between the appurtenant nozzle and the weft directing means, for the purpose of trapping the appurtenant weft in the non-inserting position of the appurtenant inserting nozzle.

Abstract: An improved distributing arrangement for successively coupling pulses of pressurized fluid through a succession of active weft-propelling auxiliary elements distributed along the shed of a fluid-jet loom is described. A pressurized fluid distributing cylinder supported for rotation on a portion of the machine frame has a plurality of peripheral openings which extend in axial and circumferentially spaced relation along the cylinder. A plurality of rotary valves are associated with each of the openings, with each valve having a first apertured portion carried by the cylinder and a second cooperating apertured portion carried by the frame and urged against the first portion. During a rotation of the cylinder in synchronism with the rotation of the main machine shaft, the conduits in both portions of each valve means come into registration to provide communication between the interior of the associated portion of the cylinder and one of the active elements of the weft insertion section.

Abstract: Device for depositing thread supply, particularly weft thread supply for unconventional weaving machines such as jet looms, the device being arranged between the feeding and withdrawing mechanisms for the thread. Said device has a thread inserter and at least one magazine in the shape of a body of revolution, on the circumference of which there is a system of ribs for depositing at least one thread, the said magazine and inserter being adapted for mutual relative motion.