Patent · 14 pages
US Patent No. 6,806, granted October 23, 1849 to Erastus B. Bigelow of Clintonville, Massachusetts, for improvements in the power loom for weaving carpets and other figured fabrics with a Jacquard. It has seven sheets of drawings and a specification describing a Jacquard frame with its own shafts, driven from the loom and adjustable in height to suit the harness cords. It also covers overhead drive of the picker staffs and shuttle-box shifting for pendulous shuttle-box frames, and a reversing motion for the power loom. Four claims are listed, followed by a disclaimer dated Boston, September 11, 1863, that narrows the reversing-motion claim.