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Process of Making Food Products.

Description: Patent for a new process "to make lard and butter substitutes, and other edible fatty products possessing the desired consistency and flavor" (lines 27-30) by hydrogenizing oils and fats. Includes explanation of the process.
Date: December 5, 1916
Creator: Walker, Thomas Bailey
Partner: UNT Libraries Government Documents Department

Method of and Apparatus for Treating Mineral Pitch.

Description: Patent for an "improved method of and apparatus for treating mineral pitch and similar material to readily separate the asphalt and asphalt-oils from sand, bituminous rock, and other impurities contained in the mined material and removing the sand and impurities" (lines 12-17). The method circulates the material in hot water to separate the asphalt and asphalt-oils from the sand and impurities. The asphalt and oil rise to the top of the water and the impurities sink.
Date: November 5, 1895
Creator: Sellers, Harvey Lee; Conyngton, Hugh Ronald & Conyngton, Thomas
Partner: UNT Libraries Government Documents Department

Axle-Lubricator.

Description: Patent for an axle lubricator that continuously lubricates an axle through a hollow nut in the end of the hub bushing, and the oil cup can be refilled easily and without removing the wheel.
Date: December 5, 1893
Creator: Miller, William J.
Partner: UNT Libraries Government Documents Department
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