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in creator/contributor: "Doyle, William F."  
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Plow-Scraper.

Description: Patent for an adjustable plow-scraper that attaches to the plow and scrapes soil from the moldboard.
Date: July 7, 1896
Creator: Jackson, Robert Litel
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Curtain-Fixture.

Description: Patent for improvements in curtain fixtures "in which the brackets supporting the spring curtain-roller may be raised or lowered to admit light above the curtain." (Lines 13-16) Includes instructions and illustrations.
Date: September 7, 1897
Creator: Winfrey, Edgar M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Acetylene-Gas Machine

Description: Patent for a acetylene gas machine that automatically controls the flow of carbid or gas producing material into the generator "by means of a float and lever connection with the valve of the carbid hopper" (lines 19-21).
Date: May 7, 1907
Creator: Ricketts, James R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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