UNT Libraries Government Documents Department - 16 Matching Results

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Automatic Wrench

Patent for an automatic wrench. The wrench possesses a locking movable jaw. Illustrations included.

Date: January 7, 1913

Creator: Clay, Samuel

Automatic Stopping Mechanism for Trains

Patent for an automatic stopping mechanism for trains. Illustration included.

Date: October 25, 1910

Creator: Mingo, William, Jr.

Brooder

Patent for a brooder which prevents chicks from entering after a certain number have gone through the door.

Date: November 5, 1912

Creator: Becker, August B.

Adjustable Hoe

Patent for improvement in "the construction of hoes and to provide a simple, practical, and inexpensive hoe, of strong and durable construction." (lines 11-13) including illustrations.

Date: July 27, 1915

Creator: Armstrong, John Joshua, Sr.

Construction of Railroad-Beds.

Patent for a railroad-bed design that is used to support railroad tracks.

Date: August 19, 1913

Creator: Alley, William W.

Water-Heater.

Patent for a portable water heater "in which a circulation of water may be had, whereby the same may become readily heated for use in a bath tub or other receptacle." (lines 12-15)

Date: November 18, 1913

Creator: Ramsey, Lee

Vehicle Guiding Mechanism

Patent for "an improved and simplified construction" for vehicle steering axles (line 15), including illustrations.

Date: February 17, 1914

Creator: Brandt, Friedrich Wilhelm

Automobile-Jack.

Patent for an automobile jack design adapted for use in garages and by those who need to do work underneath an automobile. Illustration included.

Date: August 29, 1912

Creator: Bouldin, W. Claughton

Saw-Filing Machine.

Patent for a saw filing machine for cotton gin saws.

Date: December 27, 1910

Creator: Seifert, Henry

Portable Extensible Ladder

Patent for a portable extendable ladder, designed for use, among other things, as a means of fire escape or observation, along with illustrations and explanations.

Date: July 2, 1918

Creator: Trojan, J. E.

Flash-Lamp

Patent for a flash lamp for taking photographs. Illustrations included.

Date: October 22, 1912

Creator: Harrington, David

This a letter from John S. Ward to the United States Patent Office. John S. Ward described and proposed his invention on Garden Implement and he provided a detail of diagrams of how the device could improve the Garden or field hand implements. It enables the hoe and weeder adapted to turn over the soil and to cut the root of the grass.

Date: November 9, 1912

Creator: Ward, John Swayze

Shipping-Crate.

Patent for a shipping crate that stays together tightly and is easily disassembled for storage.

Date: March 14, 1911

Creator: Muehr, Richard & Muehr, Rudolph

Wheeled Stretcher or Litter

Patent for wheeled stretcher used to transport wounded soldiers on the battlefield.

Date: November 21, 1916

Creator: Doole, Thomas P.

Post Hole Digger.

Patent for a new post hole digger that both facilitates the creation of straight sides to the hole and a mechanism to allow for easy removal of the dirt.

Date: August 17, 1916