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Electric Conductor

Description: Patent for electric conductor with switch cord and plug especially designed for use with multiple electrical circuits, as with a telephone switchboard.
Date: March 20, 1906
Creator: Weir, Welby D.
Partner: UNT Libraries Government Documents Department

Well-Pulley.

Description: Patent for a new and improved well pulley, including instructions and illustrations.
Date: March 20, 1900
Creator: Foster, James
Partner: UNT Libraries Government Documents Department

Valve.

Description: Patent for a new and useful valve, including instructions and illustrations.
Date: March 20, 1900
Creator: Fox, John C.
Partner: UNT Libraries Government Documents Department

Switch.

Description: Patent for a switch mechanism for use on railroads. The switch can be installed without cutting the railroad tracks. Instructions and illustrations are included.
Date: March 20, 1917
Creator: Allen, Gus V.
Partner: UNT Libraries Government Documents Department

Improvement in Adjustable Hats

Description: Patent for an improvement to adjustable hatband which includes directions and illustrations.
Date: March 20, 1877
Creator: Cassiano, I. Ygnacio
Partner: UNT Libraries Government Documents Department

Improvement in Convertible Wagon-Bed and Hay-Rack.

Description: Patent for "an ordinary wagon-bed with sides and a rear end board or gate, which are both adjustable and removable, and attach slats or bars to said sides and end-board in such manner that they may be extended laterally when requires, to practically increase the width of the wagon-bed." (Lines 12-18) Includes instructions and illustrations.
Date: March 20, 1877
Creator: O'Neall, James M.
Partner: UNT Libraries Government Documents Department

Millstone-Dress.

Description: Patent for an improved millstone-dress that produce less heat while grinding by employing a greater number of furrows, including illustration.
Date: March 20, 1860
Creator: Littlepage, C. V.
Partner: UNT Libraries Government Documents Department

Machine for Cutting Stalks

Description: Patent for machines that cuts rows of stalks, severing them into smaller pieces that will fall to the ground.
Date: March 20, 1917
Creator: Smith, Cullen R.
Partner: UNT Libraries Government Documents Department

Explosion Hatch for Oil Containers

Description: Patent for improved explosion hatch for oil containers.
Date: March 20, 1917
Creator: Scott, Clarence N.
Partner: UNT Libraries Government Documents Department

Toy.

Description: Patent for a whirligig toy, containing a rotatable platform carrying horse and sleigh figurines that spin in the same direction.
Date: March 20, 1906
Creator: Curtis, Zenas Albert
Partner: UNT Libraries Government Documents Department

Spark-Arrester.

Description: Patent for a simple and durable spark arrester for locomotives that has a minimum number of parts and "which will remove arrested sparks to the fire box of the locomotive and will prevent live sparks being thrown out by the locomotive and thereby endanger property adjoining the railroad tracks" (lines 19-23).
Date: March 20, 1894
Creator: O'Donnell, John
Partner: UNT Libraries Government Documents Department

Improvement in Machines for Polishing Marble, &c.

Description: Patent for an improved machine that rubs and polishes marble using a sand and water box moving forward and backward to polish the stone without man power and tools, including illustration.
Date: March 20, 1860
Creator: Emmett, William
Partner: UNT Libraries Government Documents Department

Pump

Description: Patent for an improvement to pumps. This pump is designed to facilitate pumping of materials from deep oil and water wells.
Date: March 20, 1920
Creator: Hunt, David
Partner: UNT Libraries Government Documents Department

Concrete Step Mold

Description: Patent for concrete that when used multiple times will produce a flight of stairs.
Date: March 20, 1917
Creator: Baldwin, Thomas H.
Partner: UNT Libraries Government Documents Department

Step for Railway Cars and the Like

Description: Patent for extendable step for railway cars, and the like.
Date: March 20, 1917
Creator: Dixon, John M.
Partner: UNT Libraries Government Documents Department

Railroad-Rail Joint.

Description: Patent for new and useful improvements in railroad rail joints, including instructions and illustrations.
Date: March 20, 1900
Creator: Hopping, Samuel Miller
Partner: UNT Libraries Government Documents Department

Quilting Frame.

Description: Patent for a new and improved quilting frame. This design consists in "the combination of the vertical standards bent forward at their upper ends and provided with dovetailed projections, the track-bar beveled toward the upper edge and provided with dovetailed notches to receive the projections whereby the said bar may be removed from the standards, the folding braces between the standards, the roller-bar having the rollers to run on the track-bar, and the frame connected to the roller-bar by t… more
Date: March 20, 1888
Creator: Raines, Burress Wesley
Partner: UNT Libraries Government Documents Department

Poultry-Coop.

Description: Patent for certain new and useful improvements in poultry coops, including instructions and illustrations.
Date: March 20, 1900
Creator: Fisher, Charles Nicholas
Partner: UNT Libraries Government Documents Department

Harrow.

Description: Patent for a new and improved harrow. This design consists in "[t]he combination, with the revolving harrow-teeth and prong-wheels, of the centrally-hinged vibratory frame, carrying drag-hook teeth . . . [and] [t]he combination, with the harrow-frame . . . carrying the hook-teeth, of the pulley, chain, and lever" (lines 62-70).
Date: March 20, 1883
Creator: Lewis, Charles Patton
Partner: UNT Libraries Government Documents Department

Cotton Picking Device

Description: Patent for removing cotton from the stem and placing into the machine. The machine will also remove further elements that are not part of the cotton, and then place the cotton into a basket.
Date: March 20, 1914
Creator: Beran, Rudolph F.
Partner: UNT Libraries Government Documents Department

Cotton Stalk Cutter.

Description: Patent for a new and improved cotton-stalk cutter. This design consists in "the frame or body adapted to be dragged on the ground, and provided near its front end with the laterally-projecting cutting-blade and the arm, arranged above and in front of the blade, and the colter attached near the rear end of the frame or body and adapted to cut into the soil" (lines 3-9).
Date: March 20, 1888
Creator: Oneal, Marma Duke
Partner: UNT Libraries Government Documents Department

Saddletree.

Description: Patent for certain new and useful improvements in saddletrees, including instructions and illustrations.
Date: March 20, 1900
Creator: Loeloff, George
Partner: UNT Libraries Government Documents Department

Improvement in Buckles

Description: Patent for a new and improved buckle for use with hame-straps, breech-straps, etc. The patent contains an explanation of the buckle and various illustrations.
Date: March 20, 1877
Creator: Melton, Benjamin F.
Partner: UNT Libraries Government Documents Department

Molding Apparatus

Description: Patent for an improved model of a molding apparatus for producing blocks of concrete that is cheaper to manufacture and more durable and adjustable than its predecessor.
Date: March 20, 1920
Creator: Nelson, William E.
Partner: UNT Libraries Government Documents Department
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