by a gripper needle entering the shed empty and drawing the weft as it retracts

Full Title

Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms (circular looms D03D37/00) > wherein single picks of weft thread are inserted, i.e. with shedding between each pick > by a gripper needle entering the shed empty and drawing the weft as it retracts