with reference to fig6 the aperture 47 in end 46 of blade 40 will be positioned opposite the aperture 37 aperture 47 is intersected by horizontal slot 48 which extends through the end 46 slot 48 is approximately 0 040 inches wide the differential length is believed to make it easier to separate and move the blades during yarn insertion with reference to fig1 it can be seen that the grooves 35 and 45 are facing in opposite directions and they cooperate to effectively close the apertures 34 and 44 fig3 and 4 and define a horizontal channel 68 across the heddle 20 fig1 and 11 groove 35 fits through slot 43 and groove 45 fits through slot 33 as a result of their convex concave configurations the grooves 35 and 45 each form one half of the horizontal channel 68 across the heddle channel 68 has a diameter of approximately 0 033 inches but may be dimensioned to accommodate the yarns that are to be controlled with reference to fig6 the heddle 20 is assembled with lead lines 22 and 24 the two blade members 30 and 40 are assembled together such as by sonic or spot welding at the respective ends 31 and 41 the lead line 22 passes through apertures 32 and 42 the lead line 24 passes through apertures 37 and 47 as known by those skilled in the art the lead lines 22 and 24 provide a means of controlling the heddle during weaving other control means may be used due to the existence of slot 48 in the end 46 blade 40 may be separated from blade 30 and moved to the side as indicated by arrow 60 by passing.