US Patent 4,041,987, granted August 16, 1977 to Robert Bucher of Frick, Switzerland, and assigned to Sulzer Brothers Limited. It describes an improvement to a double lift open-shed Jacquard machine with single-leg lifting wires. A stationary guide edge at the lower-shed arresting blade works with a projection on the lifting wire. It deflects the wire so that its arresting hook always couples with the blade, preventing the wire from dropping to the lifting wire board and stopping the loom. The scan includes a USPTO web database printout with abstract and claims, the printed patent front page, five drawing figures (one labelled prior art), and the two-column patent text with 3 claims.

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.