The rotation of any command of the warp crossover transmits synchronously rotating every other, so this allows synchronization even combined effect of both members autopasivos movements. Example: flexion and extension of the left wrist in his right automoviliza flexoextension, or ulnar deviation, or supination. As opposition resistance, the loom has to also synchronized to the previous movements appropriate mechanisms may take place progressively and graded form or maintain constant resistance. The rescued plot is carried by the horizontal desplazameinto the approach or fuller separation (frame comb), which facilitates the movement or autopasiva active flexion and extension of the elbow and shoulder. The lock and release the front and rear reel, carriers or warp fabric is effected by the respective bilateral and front controls. The loom is provided with a needle shuttle threader varnished wood and stainless steel knife.