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Improvement in Single-Trees.

Description: Patent for "a new and useful improvement in Wooden Single-Trees" (lines 3-4), "for plows and other similar drafts" (lines 15-16), including instructions and illustrations.
Date: December 18, 1877
Creator: Bass, Thomas Gibson
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Seed-Planter.

Description: Patent for a more simple and affordable way to make seed planters "in which there is used some sort of opener to make a furrow into which the seed are dropped, and some sort of devices which follow after and cover over the seed," (Lines 11-15) Includes instructions and illustrations.
Date: December 8, 1891
Creator: Flatau, Louis S.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Chemical Fire-Extinguisher.

Description: Patent for chemical fire extinguishers "in which the acid-bottle consists of two concentric cylinders, the inner one of which is open at top and bottom, and which, when the bottle is placed in the cylinder containing the water and soda, potash, or other material, a compressed-air seal will be formed, preventing the acid and water from commingling; but when the bottle is inverted the seal will be broken, and the water and acid coming together will generate the gas." (Lines 18-28) Includes instru… more
Date: December 31, 1895
Creator: Flatau, Louis Spencer
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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