of the weaving region is selectively coupled to a link which engages a roller supported on the slider of each adjustment portion of the succession of guiding members the link is movable into three positions corresponding to the three positions of adjustment of each slider facilities are described for securing each slider in its adjusted position and for indicating an alarm and or a loom stopping mechanism if the slider inadvertently moves out of its adjusted position prior to reaching the weaving region application_number US 72920276 A description referring now to the drawing fig1 illustrates the weaving zone 19 of a traveling wave loom a plurality of heddles 1 are disposed in axial relation along the zone 19 such heddles being mounted for reciprocation in associated ones of a plurality of heddle holders 2 in a conventional manner the heddle holders 2 are positionable between an upper shed position and a lower shed position in accordance with a predetermined program whereby sheds formed from a plurality of warp threads not shown engageable by the heddles 1 may be successively opened in wave like passage to permit the insertion of a weft such shed forming techniques are conventional in traveling wave looms and will not be discussed further here the heddle holders 2 are positioned with the aid of cam sections 3.