UNT Libraries Government Documents Department - 17 Matching Results

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Cleaning Apparatus.

Description: Patent for a cleaning apparatus, which cleans objects by blasting air across them and has an air cleaning system for use after the cleaning is done.
Date: June 1, 1909
Creator: Mayo, William C. & Houlehan, John
Item Type: Refine your search to only Patent

Rail Joint.

Description: Patent for a new and improved rail-joint. This design consists in "[t]he combination, with a railroad-rail having notches in its flanges, of a fish-plate composed of a single piece of metal adapted to embrace the flange and web of the rail, said fish-plate being plain on one side and provided on the other side with ribs, perforated lugs projecting from the ribs at the ends of the fish-plate, said fish-plate being provided with perforations on one side to align with notches in the rail-flange, a… more
Date: July 2, 1889
Creator: Davis, Benjamin Franklin
Item Type: Refine your search to only Patent

Windmill.

Description: Patent for new and useful improvements in windmills with a novel construction. This specific construction will help create much more efficiency than the existing windmills.
Date: September 8, 1903
Creator: Ham, James T.
Item Type: Refine your search to only Patent
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