Thread tying apparatus for shuttle loom

Abstract From the Canadian patent

A thread tying apparatus comprising: gripper claw, means for gripping old and new threads disposed parallel to and adjacent one another at two locations; means for rotating and retracting said gripper claw means to form a loop in said adjacent threads having a point at which said threads cross; pressing lever means for positioning said crossing point to a position offset from said gripping means; and gripping claw means for gripping a part of the threads located in said offset position pulling said part, of the threads through said loop and tensioning said threads to tie a single bundle knot with said old and new threads.