UNT Libraries Government Documents Department - 87 Matching Results

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Collapsible Bench.

Description: Patent for a collapsible bench that improves the structure of general work benches by folding together when not being used.
Date: June 15, 1920
Creator: Danyluk, Iwan.

Digging-Machine.

Description: Patent for a digging machine specialized in breaking hard soil and creating ridges that attempt to reduce erosion.
Date: April 5, 1921
Creator: Holly, Charles

Portable Extensible Ladder

Description: 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.

Horseshoe.

Description: Patent for horseshoes that can be attached to the horses' foot without nails.
Date: September 7, 1920
Creator: Lainweber, Mary C.

Adjustable Hoe

Description: 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.

Water-Heater.

Description: 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

Description: Patent for "an improved and simplified construction" for vehicle steering axles (line 15), including illustrations.
Date: February 17, 1914
Creator: Brandt, Friedrich Wilhelm

Garden Implement

Description: 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

Wheeled Stretcher or Litter

Description: Patent for wheeled stretcher used to transport wounded soldiers on the battlefield.
Date: November 21, 1916
Creator: Doole, Thomas P.

Post Hole Digger.

Description: 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
Creator: Armstrong, John Joshua, Sr.

Railroad-Trestle.

Description: Patent for improvements to current railroad trestles, in particular the truss work and supported structure. Improvements include ease of build and repair and a more practice and substantial design.
Date: December 8, 1914
Creator: Teters, Paul Albert

Construction of Railroad-Beds.

Description: Patent for a railroad-bed design that is used to support railroad tracks.
Date: August 19, 1913
Creator: Alley, William W.

Automobile-Jack.

Description: 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

Combined Post-Hole Digger and Wire-Stretcher.

Description: Patent for a combined post hole digger and wire stretcher, which allows barbed wire to be strung on a fence more easily and for fence building to be done by one person.
Date: August 18, 1908
Creator: Armstrong, John Joshua, Sr.

Automatic Wrench

Description: Patent for an automatic wrench. The wrench possesses a locking movable jaw. Illustrations included.
Date: January 7, 1913
Creator: Clay, Samuel

Cotton Picker's Truck

Description: Patent for a cotton picker's truck. This invention is to provide a device for supporting the sacks of cotton pickers. Illustrations included.
Date: July 5, 1904
Creator: Franek, Jakob

Crate

Description: Patent for a crate designed for more convenience in shipping. Illustrations included.
Date: April 16, 1907
Creator: McLeod, Norman J.

Automatic Switch Indicator

Description: Patent for an automatic switch indicator. This invention is designed to "prevent accidents resulting from misplaced switches, due to the carelessness of the railroad employees or the inability of the engineer to see the customary track-signals" (line 14-19). Illustrations included.
Date: October 23, 1906
Creator: Coffin, Edward F.; Shaw, Carey & Green, Samuel

Brooder

Description: 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.

Well-Screen.

Description: Patent for improvements in well-screen by providing a symmetrical strainer which having an exceedingly firm and rigid frame; it is constructed as to interpose the least obstruction to the straining operation. (Lines 21-25) Illustration is included.
Date: December 8, 1903
Creator: Karsch, George J.

Umbrella and Sunshade

Description: Patent for an umbrella and sunshade. Illustration included.
Date: March 8, 1904
Creator: Gra, Hernando B.

Lifting Jack.

Description: Patent for lifting-jack invented by Calvin W. and Eugene Tanner. This lifting-jack invention is meant to be more durable in material, the material more inexpensive to acquire.
Date: July 3, 1906
Creator: Tanner, Calvin W. & Tanner, Eugene

Umbrella

Description: Patent for an umbrella. Illustration included.
Date: December 25, 1906
Creator: Gra, Hernando B.
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