US Patent No. 1,041, granted December 28, 1838 to Jonathan Dennis, Jr., of Portsmouth, Rhode Island, for a machine for reeling silk from cocoons. The machine is operated by foot treadle (or by steam or water power) and has a heated boiler with a strainer and partition, pointed wires that keep tangled cocoons away from the guide, and fluted revolving tubes that twist the fibers. It also has a traversing guide that lays the thread on a reel. Two sheets of drawings and the full specification with two claims are included.

US Patent No. 1,040, granted December 28, 1838 to Jonathan Dennis Jr. of Portsmouth, Rhode Island, for a machine that spins silk from cocoons and then doubles and twists it on the same frame. The specification describes the frame, treadle drive, heated boiler with partitioned strainer, pointed-wire guides, spindles with fliers or cylinders, band-driven bobbins and a traversing rail that winds the thread evenly. It closes with two claims. Two sheets of drawings with lettered and numbered parts accompany the text.