UNT Libraries Government Documents Department - 26 Matching Results

Search Results

Drill-Bit

Description: Patent for a drill bit for oil wells that provides a way for the bit to be lubricated while in use to prevent the adhesion of gummy substances.
Date: June 4, 1918
Creator: Kilgore, John G.

Disk-Harrow Sharpener.

Description: Patent for improvements to sharpening the disk harrows by attaching a disk sharpener onto the frame of the disk harrow so as the harrow is being drawn across the field, the rotating disk harrow comes into contact with the sharpener. Includes instructions and illustrations.
Date: November 25, 1913
Creator: Lammon, Harry

Agricultural Implement.

Description: Patent for an agricultural implement related to ground treating. The implement introduces a novel mounting for a colter that will keep it in line with the draft beam, as well as aids in holding the soil-turning elements in place.
Date: November 4, 1913
Creator: Vanderwater, Daniel B.

Cultivator.

Description: Patent for improvements in cultivating devices such as weeders which includes a labor reducing tool to pull out weeds and grasses from various types of lands including instructions and an illustration.
Date: February 15, 1916
Creator: Luckey, Bert C.

Bag Holder

Description: Patent for a bag holder. This invention is made of four frame sections that fold and when extended supports the bag. Illustration included.
Date: January 7, 1913
Creator: Devini, John H.

Colter.

Description: Patent for a colter, which attaches to a plow to cut weeds or brush in the field before the plowshare digs into the dirt.
Date: May 31, 1910
Creator: Stacy, William

Wrench.

Description: Patent for "a wrench in which the ratchet is inclosed, so that none of its parts will be exposed to the action of dust" (lines 16-18), provides ample lubrication, and ease of inspection. Includes instructions and illustrations.
Date: June 2, 1912
Creator: Sherman, Lothrop C.

Saw Set

Description: Patent for a saw set. This invention is designed to align cutting teeth in a uniform length. Illustration included.
Date: December 17, 1912
Creator: Devini, John H.

Crosby Quadrangle

Description: 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 1:24000
Date: 1916
Creator: Geological Survey (U.S.)
Location: 29.94 -95.06

Crosby Quadrangle

Description: 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 1:24000
Date: 1916
Creator: Geological Survey (U.S.)
Location: 29.94 -95.06

Huffman Quadrangle

Description: 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 1:24000
Date: 1916
Creator: Geological Survey (U.S.)
Location: 30.06 -95.06

Crosby Quadrangle

Description: 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 1:31680
Date: 1919
Creator: Geological Survey (U.S.)
Location: 29.94 -95.06
Back to Top of Screen