"The Art of Napping", Woonsocket Napping Machinery Co., c.1924. Catalogue of napping machinery sent to Collins Bros by an American manufacturer of napping machinery. The napping (or raising) done by these machines is all done by wire, not teasels.Book: "The Art of Napping" Woonsocket Napping Machinery Co., c.1924. Letter from The Woonsocket Napping Machinery Company to Mr. Charles W. Ayling, 16 October 1924, page 1. Letter from Woonsocket Napping Machinery Company to Mr. Charles W. Ayling, 16 October 1924, page 2. Blueprint of Napping Machine, Woonsocket Napping Machinery Co. with speeds at which machines should run. Letter from Woonsocket Napping Machinery Co. to Collins Cros. Pty. Ltd., 17 April 1950textile finishing, cotton, woonsocket napping machinery co., raising, raising machinery, lustring, tentering