hollow
needle, having a cylindrical basic element on one side that can connect to a source of a medium and
that has a top part on the other side that is closed at the top and has a flattened shape with nearly
equilateral front and rear walls, with the front wall having a somewhat slanted surface near the top,
wherein there is an outlet opening, that may have pattern of small apertures.

An auxiliary nozzle of this type to which the invention pertains is known from US patent
no. 3,978,896. Auxiliary nozzles of this type are used in looms to carry a thread through the weaving
shed. These auxiliary nozzles supply a medium jet which serves to carry a thread in the shed of the
loom. Several of such auxiliary nozzles are set up from one end of the weaving shed to the other and
produce consecutively a plurality of medium jets, each of which is operative in a predetermined
range of the weft inserting trajectory and carries the thread through the weaving shed. Because of
the needle-shape of said nozzles, they may readily pass between the warp threads into and out of the
weaving shed. The function of the nozzles is to give a certain speed to the thread in the loom
weaving shed and in order to be able to properly serve this function, each of the nozzles must satisfy
various requirements. Firstly, the needle must have a certain shape so that the warp threads are not
disturbed while the nozzle moves. The jet opening in the needle must also be located close to the top
and the air stream must have a properly determined blowing direction which is as independent as
possible from the supply pressure. The speed of the jet must be as high as possible from a distance of
3 to 10 cm with the minimum possible air consumption.