Flue Scraper (open access)

Flue Scraper

Patent for a new and improved boiler tube scraper which will allow for easier insertion and removal, including illustrations and instructions.
Date: April 8, 1913
Creator: Lorenz, William Adam
System: The Portal to Texas History
Cotton-Chopping Machine (open access)

Cotton-Chopping Machine

Patent for a cotton chopping machine. Illustrations included.
Date: August 8, 1911
Creator: Lynn, Walter Hugh
System: The Portal to Texas History