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Aeroplane

Description: Patent for an aeroplane. This invention does not use any mechanism to maintain the planes equilibrium. Illustration included.
Date: November 5, 1912
Creator: Goebel, Alois
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Regional Water Plan: Region K (Lower Colorado), 2016, Volume 1. Main Report

Description: Water plan for Region K describing water resources and suppliers in the area, usage statistics and forecasts, water needs, recommendations for water management for different suppliers and areas, drought response measures, and plan creation activities.
Date: November 2015
Creator: Lower Colorado Regional Water Planning Group
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Filter and Water Purifier.

Description: Patent for a new and improved water filter. This design consists in "[t]he combination of a water-pump having upwardly-opening valves, an air-pump having downwardly-opening valves, and two perforated cylinders surrounding the pump-tubes and provided with a packing of filtering material, the water-pump tube opening into the inner cylinder, and the pump-tube passing entirely through both heads of the same" (lines 61-68).
Date: November 26, 1889
Creator: Stiles, Frederick
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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