US Patent 4,059,133, granted 22 November 1977 to Ferdinand Diesner and Robert Bucher, describes a weft insert apparatus for shuttleless ribbon looms. Two curved, rocking weft insert elements cross in the shed: one carries the weft thread through an eyelet or notch and the other seizes it with a hook, and a tying needle then secures the loop at the ribbon edge. The text covers the prior art, the summary, the four operating steps, the hook design (web, enlarged portion, shoulder angle of 90 to 100 degrees) and five claims. The scan includes a database printout, the patent front page, three drawing sheets, and the printed patent text.