German Reich patent no. 445 021 by Gertrud Witte of Berlin-Halensee for a shedding device for weaving apparatus and looms. The device uses a rotating body made of slotted disks or plates on an axle, with small plates or rails inserted in the slots to serve as interchangeable supports for the warp threads. The text describes the frame, table and plate arrangement, and the claim; figures show the device in elevation and plan.