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Hayrick Sheet

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 1:125000
Date: 1915
Creator: Geological Survey (U.S.)
Location: 31.75 -100.25
Partner: UNT Libraries Government Documents Department

Valve-Gear.

Description: Patent for a horizontally arranged cylinder that when used would bear no wear indefinitely. The cylinder was made specifically for steam engines.
Date: June 29, 1915
Creator: Burrow, Edgar A.
Partner: UNT Libraries Government Documents Department

Governor

Description: Patent for Governor that improves upon a speed controlling mechanism, specifically for controlling a reciprocating element like an engine piston, including illustration and instructions. This application is a division of an earlier application (Serial Number: 843, 812 submitted June 08, 1914).
Date: June 29, 1915
Creator: Burrow, Edgar A.
Partner: UNT Libraries Government Documents Department

Resilient Wheel.

Description: Patent for a resilient wheel showcasing adjustable or sectional rims. Modification also exhibits lightness quality, balance for proper distribution, and is noiseless with easy running abilities.
Date: February 23, 1915
Creator: Dysart, Marby P.
Partner: UNT Libraries Government Documents Department
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