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Nut Lock.

Description: Patent for a new and improved nut lock. This design consists in "[t]he combination, with the end-cleft screw-bolt, of the wedge which is made of the same width as the diameter of the bolt, and provided with serrations corresponding to the screw-thread, and the fastening-wire which is wrapped around both bolt and wedge and lies in their respective grooves and serrations" (lines 72-78).
Date: August 23, 1881
Creator: McAllister, Lewis Campbell
Partner: UNT Libraries Government Documents Department

Railway Rail and Chair.

Description: Patent for a new and improved railway rail and chair combination. This design consists in "[t]he combination of the reversible rail and chair-plates . . . so as to leave an open crescent-shaped space below the middle part of the rail and above the inwardly projecting lips" (lines 94-98).
Date: August 2, 1881
Creator: Brown, Frederick H.
Partner: UNT Libraries Government Documents Department
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