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Canal or Ditch Digging Machine.

Description: Patent for a canal or ditch digging machine that has a carriage and a mechanism that draws the carriage across the ground, and a boring-tool beneath the carriage. The boring-tool can bore at an adjustable angle.
Date: August 20, 1895
Creator: Hoefs, Otto
Partner: UNT Libraries Government Documents Department

Breakwater.

Description: Patent for improving seawalls to "preserve channels across the bars at the mouths of rivers, creeks, or canals and between bays and gulfs" (lines 6-8), including illustration.
Date: June 7, 1859
Creator: Armour, D. Hillen
Partner: UNT Libraries Government Documents Department

Breakwater.

Description: Patent for a new and improved breakwater. This design "furnish[es] breakwaters for protecting harbors and roadsteads, and keeping open channels through bars at the entrances of harbors, the mouths of rivers, and in other places, and which shall not be liable to be destroyed by the marine worm" (lines 13-19).
Date: August 9, 1881
Creator: Follett, Alexander Glass
Partner: UNT Libraries Government Documents Department

Coffee-Pot

Description: Patent for a simplified coffee pot that extracts coffee by using boiling water and the receptacle without changing the structure of the device.
Date: July 4, 1905
Creator: Haley, William L.
Partner: UNT Libraries Government Documents Department

Attachment for Ice-Boxes.

Description: Patent for an attachment for ice-boxes which is "a vessel for the reception of ice and having a surrounding series of compartments for the reception of the matter to be refrigerated" (lines 11-14).
Date: April 3, 1900
Creator: Moyes, Aceph B.
Partner: UNT Libraries Government Documents Department

Apparatus for Fusing Sulfer from Low Grade Ores

Description: Patent for the Apparatus for Fusing Sulfer from Low Grade Ores. This machine makes the extraction of sulfur from ores containing less than 20% sulfur, while also removing the impurities.
Date: September 16, 1919
Creator: Austin, Paul P., Jr.
Partner: UNT Libraries Government Documents Department

Barrel Support

Description: Patent for "certain new and useful improvements in Barrel Supports (lines 5-6)."
Date: April 2, 1918
Creator: Taylor, Charles E., Jr.
Partner: UNT Libraries Government Documents Department

Apparatus for Sulfur Mining

Description: Patent for "new and useful improvement" for sulfur mining by Mr. Robert Carmichael. This device has particular application for mining in subterranean environments, "by use of pumping a heated fluid down into contact with a sulfur strata" (lines 14-15).
Date: December 9, 1919
Creator: Carmichael, Robert E.
Partner: UNT Libraries Government Documents Department
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