72 at the opposite side with respect to the first disc 68 as shown in fig7 and 8 the connecting rod 75 is provided at its ends with ball joints 81 and the rocker 77 is movable in a direction away from the second disc 70 by action of a hand control lever 82 integral to a cam 83 working in direction of the rocker 77 the latter is provided with an axially slidable articulated member 84 which allows the rocker 77 to be spaced apart from the second disc 80 after what has been described above the operation of the different mechanical members of the weaving machine according to the invention appears evident due to the simplicity of the same members and to the fact that many remarks concerning the operation of said machine have already been made for the sake of clearness during the above description on the contrary the different working possibilities of this machine depending upon the above described structure are clearly explained in fig1 to 19 in these figures the following members are diagrammatically shown tubular weft yarn guides 7 rods 13 plates 15 the front grooved bar 7 needles 6 the warp yarn 12 and the weft yarn 85 that is supplied through the tubular weft yarn guides 14 furthermore the oscillations of plates 15 are indicated by the arrow 86 and it is understood that these oscillations are of a known type i e they have the same amplitude than the distance between two adjacent needles 6 above all it.