Abstract: An insertion device for a series-shed loom having a rotor including combs (2) and shedding members for guiding the warp threads (3) over a predetermined angular region for shedding. The insertion device has a laying bar (10) with recesses (24) to guide the warp thread (3). It is moved to and fro parallel to the rotor by a drive mechanism for inserting the warp threads (3) into the shedding members on the rotor. Each laying bar (10) is associated with a guide bar (25) for deflecting the warp thread (3) for aligning it with the recess (24) in the laying bar (10). As a result the laying bar (10) is advantageously relieved of most of the warp thread tension and only directs the warp just parallel to the rotor. The laying bar (10) may consequently have a low mass.