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Trailer.

Description: Patent for improved construction and arrangement of trailers. This improvement will allow an easy turning movement where a number of trailers are connected while admitting of strain between the various trailers when they are turning a corner or going around a curve.
Date: August 20, 1918
Creator: Watkins, Leigh
Partner: UNT Libraries Government Documents Department

Process of Treating Slag and Furnace Therefor.

Description: Patent for a process of treating slag and furnace therefore. It has an improved method for separates melted metals produced during smelting and extracting the precious metals from slag. The richer matte and base-bullion run off separately and into separate taps.
Date: August 20, 1895
Creator: van Cleve, Charles M. & Rhodes, Robert D.
Partner: UNT Libraries Government Documents Department

Safety Clamp For Starting Boxes.

Description: Patent for a safety clamp for locking the handles of starting boxes with slotting to receive a padlock.
Date: June 20, 1916
Creator: Henry, Ben B.
Partner: UNT Libraries Government Documents Department

Electric Insact Trap.

Description: Patent for an electric insect trap that highly efficient trap for electrocuting house flies and similar insects, include illustrations.
Date: January 20, 1914
Creator: Craig, Samuel A.
Partner: UNT Libraries Government Documents Department

Floor cleaner.

Description: Patent for a floor cleaner that cleans better.
Date: June 20, 1916
Creator: Crawford, Hezikiah H.
Partner: UNT Libraries Government Documents Department

Saw Gaging and Setting Tool.

Description: Patent for saw gaging and setting tool designed to be a simple and efficient way to gage and set saws blades. The invention can also be used for truing saw teeth.
Date: January 20, 1920
Creator: Barger, Bernard J.
Partner: UNT Libraries Government Documents Department

Railway-Switch

Description: Patent for improvements in railway switches which are especially adapted for use on street railway tracks.
Date: January 20, 1914
Creator: Craig, Samuel A.
Partner: UNT Libraries Government Documents Department

Slime Separator and Classifier.

Description: Patent for settler, separator, and classifier of different solid and liquid particles, includes illustrations.
Date: July 20, 1915
Creator: Allen, Charles
Partner: UNT Libraries Government Documents Department

Fastening Device for Fence-Runners.

Description: Patent for a fastening-device for fence-runners that is a staple and tie-wire in one. The device will not be drawn or displaced regardless of its placement in relationship to the runner.
Date: October 20, 1896
Creator: Logan, Paul H.
Partner: UNT Libraries Government Documents Department

Extracting Metals from Ores

Description: Patent for the extraction of metals from ores by developing an improvement to the cynid process.
Date: August 20, 1918
Creator: Biesel, C.
Partner: UNT Libraries Government Documents Department

Bicycle.

Description: Patent for a bicycle that is safer than other bicycles. It has compensating gearing so that "the variations in leverage in the various positions assumed by the pedal crank are equalized" (lines 12-13).
Date: February 20, 1894
Creator: Lillibridge, Freeman
Partner: UNT Libraries Government Documents Department

Boiler Stay Bolt

Description: Patent for a boiler stay bolt. Illustration included.
Date: September 20, 1904
Creator: Peters, Joseph & Coleman, John
Partner: UNT Libraries Government Documents Department

Valve and Valve-Seat.

Description: Patent for a valve and valve seat made of stainless steel for the purpose of preventing rusting and corrosion.
Date: September 20, 1921
Creator: Bevelle, Joseph C. & Smith, Joseph J.
Partner: UNT Libraries Government Documents Department

Continuous Vacuum Dehydrator.

Description: Patent for improvements in speed, cheapness, and more efficiency in continuous-vacuum dehydration and filtering for the purpose of extracting valuable ores with water including instructions and illustrations.
Date: August 20, 1918
Creator: Biesel, Charles
Partner: UNT Libraries Government Documents Department

Air-Cleaning System

Description: Patent for an air cleaning system to be used in homes. Illustrations included.
Date: April 20, 1909
Creator: Mayo, William C. & Houlehan, John
Partner: UNT Libraries Government Documents Department
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