US Patent No. 1,266,826, granted May 21, 1918 to Smith F. Krupp of Atlanta, Georgia, for a saw-type cotton gin designed to gin long staple (sea island) cotton without damaging the fibers. The invention uses ribs with free ends and raised guards between the saws, working with a doffer and brush cylinder. Four sheets of drawings show the main form and variants with a roll box and with a hulling chamber, followed by the specification and eleven claims.