Patent ID: 7726351

Claim:
A device for inserting weft threads in an air jet weaving machine comprising: at least one set of main nozzles arranged in series to collectively transmit a preset overall air jet impulse to each weft thread inserted during weaving; an individual regulating valve connected to each main nozzle and which is controllable by settings received from a control and regulating unit to set values of the intensities of air jet impulses transmitted by the respective main nozzle connected to said regulating valve to the weft threads during weft insertion; said control and regulating unit arranged to enable selective control of a value of the preset overall air jet impulse and to control, in response to a setting of a preset overall air jet impulse value, the settings of the individual regulating valves with respect to one another so each respective main nozzle connected to the regulating valves exerts on an inserted weft thread a selected proportion of said preset overall air jet impulse transmitted by the set of main nozzles.