Warp tying machine
United States Patent 1191 Mizuno Apr. 29, 1975 i 1 WARP TYING MACHINE [76] Inventor: Kazuo Mizuno, 3-17-2 Mikasadori, Kasamatsu-cho, Hashima-gun, Gifu Prefecture, Japan [22] Filed: Dec. 13, 1973 [2]] Appl. No: 424,310  
 Primary E.run1iner Louis K. Rimrodt Attorney. Agent. or Firm-Wenderoth. Lind &amp; Ponack [57] ABSTRACT A warp tying machine comprises a machine body, old and new warp yarn gripping means projecting from the body for gripping old and new warp yarns in side by side positions, and lease rods positioned below the yarn gripping means and projecting from the machine body in the same direction for guiding the warp yarns in movement toward the machine body, Yarn drawing means movable along the lease rods are provided for drawing old and new warps along the lease rods toward the machine body to stand-by positions. A yarn drawing hook is mounted on the machine body and movable in a path of revolution around the machine body, such path including the stand-by positions Yarn cutting means are provided on the body and include means movable around the warp yarns when they are in the stand-by positions for engaging the yarns and positive action cutting means for cutting the engaged yarns. Yarn tying means are provided on the body along the path of the yarn drawing hook for receiving the old and new warp yarns which have been cut and for tying them together, A yarn presence detecting means is provided for detecting the presence of the yarns in the stand-by positions and for blocking movement of the machine when a yarn is not detected in either position.  
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