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Windmill.

Description: Patent for an improved design for windmills that are in regular use. The design implements two sets of hinged vanes and uses weights to control the amount power that the windmill can generate. Included are instructions and illustrations.
Date: May 18, 1880
Creator: Rudolph, Calvin Foster
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Adjustable Stool.

Description: Patent for an adjustable and foldable stool for but not limited to field workers, including instructions and illustrations.
Date: April 6, 1880
Creator: Smith, William Alexander & Smith, Robert Toumbleson
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Spark-Extinguisher.

Description: Patent for a spark extinguisher "to prevent the burning of buildings and other combustible matter by steam engines" (lines 15-17).
Date: March 9, 1880
Creator: Blewett, George L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Harvester-Reel.

Description: Patent for the placement of a "covering of canvas, cloth, or other suitable material" (lines 16-17) around a harvester-reel for various improvements, including instructions and illustrations.
Date: March 23, 1880
Creator: Moore, Joseph Martial
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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