UNT Libraries Government Documents Department - 335 Matching Results

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Improved Double Pincers.

Patent for the improvement of double pincers by way of "double jaws, by which both sides of the shanks of a boot of shoe can be clamped and held at the same time."

Date: March 29, 1870

Creator: Maund, William

Item Type: Patent

Patent for an invention that "relates to bed-slat-holding means; and the object of the same is to provide simple and effective devices for holding the end of a bed-slat, which is in part carried by the latter and the ledge of the side rail and operating to prevent loose assemblage of the slats with bed-rails and obviate a tendency to easy disengagement and also to maintain the opposite bed-rails in parallel relation and obstruct warping or lateral expansion" (lines 8-21). Illustrations are incl… more

Date: January 2, 1902

Creator: Cooper, Alexander, R.

Item Type: Patent

Bolsters for Log Wagons

Patent for a bolster for use with log wagons by aiding in the arrangement of varying sizes of log loads. Illustration included.

Date: December 14, 1909

Creator: Warren, John Thomas

Item Type: Patent

Plow.

Patent for a plow, which has easily removable parts for easy cleaning.

Date: November 15, 1910

Creator: Minyard, Sam Jackson

Item Type: Patent

Trap

Patent for a steel animal trap. Illustrations included.

Date: April 30, 1912

Creator: Davidson, David L.

Item Type: Patent

Churn.

Patent for Churn for mixing liquids. The invention's construction includes a sturdy stand with a crank handle, that when rotated, allows a wheel to turn on the shaft. The simple design allows for inexpensive construction.

Date: May 6, 1913

Creator: Burns, John F.

Item Type: Patent

Rail-Joint.

Patent for a new rail joint to be secured to a rail having "the lower portion of its web and its base flange terminate a short distance beyond the end of the rail" (lines 28-30), including illustrations.

Date: July 8, 1913

Creator: Reed, George W.

Item Type: Patent

Mechanical Starter for Internal Combustion Engines.

The patent is to rotate the crankshaft of the engine by new and novel mechanical that means the simplified and improved construction for the target of starting the motor.

Date: December 21, 1915

Creator: Leach, William W.

Item Type: Patent

Transporting Truck

Patent for "improvements in transporting trucks for agricultural implements" (Lines 10-11) including illustrations.

Date: March 21, 1916

Creator: Leach, William W.

Item Type: Patent

Safety-Trap.

Patent for class of steam valve safety traps to prevent the interference of heavy particles with the flow of steam ensuring efficient working of the machine.

Date: July 25, 1916

Creator: Bird, David R.

Item Type: Patent

Railroad Tie

Patent for a type of support for the rails in railroad tracks.

Date: August 7, 1916

Creator: Huffman, Henry W.

Item Type: Patent

Sawmill Carriage Track

Patent for Sawmill Carriage Track. This device allows for the logs to be held in place on a straight line while lining up for timber production.

Date: March 6, 1917

Creator: Heard, Wm. C.

Item Type: Patent

Crude-Oil Burner.

Patent for an improved burner that is safe from the danger of exploding and can be made cheaply, including instructions and illustrations.

Date: August 7, 1917

Creator: Hudgens, John Albert

Item Type: Patent

Portable Power Stump-Boring Machine.

Patent for an invention that improves upon portable power stump boring machines to prevent breakage of the auger or shaft, including instructions and illustrations.

Date: October 9, 1917

Creator: Leach, William W.

Item Type: Patent

Burial-Casket

This patent is for a burial casket. One of the aims of this casket is to obviate the necessity of using metallic securing devices which now commonly corrode or deteriorate from moisture and expose the body of the corpse to moisture in the ground as well as to parasites and burrowing animals.

Date: March 26, 1918

Creator: McKinney, Jacob D.

Item Type: Patent

Railroad-Rail

Patent for railroad rail that does not need to joined with a bolt and can be locked in place to prevent spreading.

Date: October 22, 1918

Creator: Huffman, Henry W.

Item Type: Patent

Process for Hardening Copper.

Patent for a process of hardening copper to prevent bending and scaling of the metal. The process involves heating copper to a high temperature (1370 degrees Fahrenheit) and then subjecting it to continual pressure through hammering it until cold.

Date: February 24, 1920

Creator: Beckham, Dewitt T.

Item Type: Patent

Magneto-Contact.

Patent for magneto contacts, designed for easy removal, cleaning, and replacement, without short circuits, featuring novel construction features and parts arrangements.

Date: April 26, 1921

Creator: Rigsby, Virgil.

Item Type: Patent

Zwolle Quadrangle

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500

Date: 1941