[Collection of patent specifications, correspondence and signed declarations, 1784-1852, re ropemaking machinery and methods, collected by Robert Stirling Newall in the 1840s -1850s, possibly in connection with his dispute with Andrew Smith. 47 slim folders. Ms., with and ink drawings. See Trans. Newcomen Soc. 23 (1942-3) 71-79] Collection of patent specifications 1784-1852