and 10 the pick 5 therefore becomes placed under the straight thread 1 and above the twist thread 2 as can be better observed in fig6 wherein the end position of the pick 5 is shown in an intermediate position evidenced by fig7 and 8 it can be observed how the straight thread 1 has moved downwards while the twist thread 2 has moved upwards the eye heald 8 has moved upwards and after the consequent movement of the other healds when moving again downwards the eye heald 8 guides the twist thread 2 so that the crossing thread 2 therefore becomes placed on a rear plane relative to that on which the straight thread 1 lays fig9 and 10 show this last step of movement of the healds besides showing the end configuration of the weave diagram as the eye heald 8 moves downwards and the normal heald 9 moves upwards the twist thread 2 and the straight thread 1 place themselves once again on opposite sides relative to the shed 12 a new pick 11 is inserted always under the straight thread 1 and above the twist thread 2 thus accomplishing the end step of the desired interlacement both with the traditional system and.