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Improvement in Rotary Subsoil-Plows.

Description: Patent for an improvement upon subsoil plows, using a series of spades arranged upon the same pulleyed rotary shaft, combined with furrow-opening plows.
Date: March 28, 1871
Creator: Morris, Joseph R.
Partner: UNT Libraries Government Documents Department

Improvement in Furnaces for Producing Hydrogen and Treating Ores

Description: Patent for an improvement on heating furnaces, having an external water tank and steam tank and an orifice for the admission of steam from the water chamber.
Date: March 28, 1871
Creator: Morris, Joseph R.
Partner: UNT Libraries Government Documents Department

Improvement in Stilts

Description: Patent for improved stilts "whereby a stilt-stirrup may be quickly, easily, and securely fastened at different elevations on the standard" (para. 3).
Date: March 28, 1876
Creator: Beaumont, Franklin, Jr.
Partner: UNT Libraries Government Documents Department
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