Patent · 3 pages
US Patent No. 767,942, granted August 16, 1904 to Walter W. Hodgson of Philadelphia, for an improvement to double-lift jacquard machines. The needles are connected to hooks in pairs so that, without changing the card, the warps can be shed alike or differently on successive lifts, depending on how the card is punched. The patent has a sheet of drawings with two figures (six-pair and twelve-pair hook arrangements), a specification, and two claims. It is a divisional application of Serial No. 137,815, filed January 5, 1903.