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Process of Hardening Bitminuous Substances.

Description: Patent for "a process for hardening or partly solidifying to any required degree substances such as liquid or viscid bitumens, tars, or asphaltums, either natural or artificial" (lines 8-12). It hardens bitumens without evaporating oils and leaves them solid when cooled.
Date: August 11, 1896
Creator: Dumble, Edwin Theodore
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Nailing - Machine.

Description: Patent for a new and useful improvements in nailing-machines. This design is "adapted to automatically distribute and feed the nails to a predetermined point" (line 10-12).
Date: January 11, 1898
Creator: Brady, William B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Trolley-Pole.

Description: Patent for certain new and useful improvements in trolley poles, including instructions and illustrations.
Date: October 11, 1898
Creator: Mason, Virgil Augustus
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Nut and Washer for Vehicle Axles.

Description: Patent for a new and improved nut and washer combination. This design consists, "with a threaded end on an axle-spindle, which is longitudinally grooved on opposite sides of the thread, and a radially-flanged nut made to engage the threaded-end of the spindle, of a cap-ring having an annular recess formed on one side from its inner edge outwardly, said ring being secured upon the radial flange of the nut, and a cylindrical outer shell having an inwardly-extended flange on one end, and ears on t… more
Date: March 11, 1890
Creator: Sullivan, Jonathan L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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