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Improvement in Scrapers.

Description: Patent for improved road scraper with two-wheel vehicle and scoop pulled by a chain.
Date: July 15, 1873
Creator: Mayfield, William Dudley
Partner: UNT Libraries Government Documents Department

Improvement in Car-Couplings.

Description: Patent for an "improvement in car-couplings; and it consists in the arrangement and combination of devices whereby the pin is supported in a raised condition; also in a spring-slide for holding up the link ready for coupling with another car." (lines 13-18)
Date: July 2, 1878
Creator: Gassaway, John H.
Partner: UNT Libraries Government Documents Department
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