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Incubator.

Description: Patent for an incubator, which automatically turns all the eggs to allow them to get the same amount of warmth and light.
Date: July 19, 1910
Creator: Gerard, Alonzo
Partner: UNT Libraries Government Documents Department

Ceiling-Plate.

Description: Patent for improvements to ceiling plates that allow a ceiling plate through which a pipe passes to remain securely attached to the ceiling (or other surface) even while the pipe expands or contracts.
Date: June 19, 1917
Creator: Donnelly, John R.
Partner: UNT Libraries Government Documents Department

Coin-Sorter.

Description: Patent for a coin sorter that sorts coins according to their dimensions and places in a receptacle with removable bottom cover to collect the sorted coins.
Date: August 19, 1913
Creator: Haynie, Brooks
Partner: UNT Libraries Government Documents Department
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