UNT Libraries Government Documents Department - 3 Matching Results

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Arrangement for Supplying Air to the Furnaces of Stem-Boilers from the Wheel-Houses of Steamers.
Patent for the "improvement in supplying air to furnaces on steamers" (lines 5-6), including illustration.
Improvement in Cultivators.
Patent for a triangle shaped cultivator with removable mold-boards that can be used as a plow and scraper, including illustration.
Improvement in Sewing-Machines.
Patent for improvement in sewing-machines by using two cams, one to operate the needle-arm and another to operate the feed and shuttle movements, illustration is included.