following upwards movement of the left lifting blade 41 the left pulling element 42 is left back i e the heddle 7 remains in the lower shed position if due to a pattern program the electromagnets 13 14 are disenergized the coupling portions 52 will lift off the retention device 12 due to their own elastic force in this position the pulling elements 42 are engaged subsequently by the lifting blades 41 and moved upwards and downwards a change happens then when the electromagnets 13 14 are again excited fig8 to 10 illustrate a second embodiment of the inventive shedding device with another construction of the lifting blades and of the pulling element the shedding device comprises two lifting blades 61 and two pulling elements 62 with a coupling portion 63 and a guide portion 64 such as illustrated in fig8 the lifting blade has a cross sectional shape with a square lower portion a center portion diverging upwards and a substantially u shaped upper portion whereas the lower portion causes the adjusting of the pulling element 62 in the defined position relative to the pull areas 23 24 fig6 the center portion causes during the downwards movement of the lifting blade 61 the pivoting of the coupling portion 63 in the directed of the retention device 12 in order to place the coupling portion 63 onto the pole areas 23 24 fig1 each pulling element 62 has a stop member 65 the pulling element 62 includes at its coupling portion 63 a hook shaped section 66 two hooked shaped sections 67 are foreseen at the upper part of the lifting blade 61 which are arranged complementary to the section 66 at the pulling.