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Improvement in Cultivators.

Description: Patent for improvement in horse-drawn cultivators.
Date: April 23, 1872
Creator: Jordan, Hugh Paxton
Partner: UNT Libraries Government Documents Department

Improvement in Electro-Magnetic Engines.

Description: Patent for "a new practical application of electro-magnetism to machinery for the purpose of moving the same and keeping it in motion, and developing a degree of force which is only limited by the reduced proportion of power applied. The invention consists principally in the transmission of electro-magnetic power through compressed air for motor purposes, and the mechanism and combination of machinery necessary for that purpose." (Lines 12-22) Includes instructions and illustrations.
Date: April 9, 1872
Creator: Thornton, William G.
Partner: UNT Libraries Government Documents Department
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