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Latch and Lock Combined.

Description: Patent for a new and improved latch and lock. This design consists "[i]n a lock, the combination, with the bushing extending through and rigidly secured to the door and having a screw-thread on its inner end, of the lock-case having the circular screw-threaded aperture into which the threaded end of the bushing is screwed, the spring-actuated bolt and knob-spindle connected therewith, and the outer plate having the notch engaging with the lug on the case, and the downwardly projecting side-piec… more
Date: March 26, 1889
Creator: Overton, Thomas
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Windmill.

Description: Patent for an improvement in the vertical wheel of windmills including illustrations.
Date: March 26, 1889
Creator: Dietert, Gustav
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Switch Stand for Dynamo Stations.

Description: Patent for a new and improved switch stand for dynamo stations. This design "is to provide a simple and efficient switch for introducing dynamos into an electric circuit and removing them therefrom . . . [The] invention consists in . . . outside circuit-wires . . . switch contacts arranged in pairs, there being as many pairs of such contacts as there are dynamos belonging to the circuit. It also consists[,] . . . with the pairs of contacts, of corresponding pairs of swinging arms, the arms of e… more
Date: March 26, 1889
Creator: Stewart, Robert Edward
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Fish-Trap.

Description: Patent for an improved fish-trap consisting of a net drawn in the rear of two boats with illustrations.
Date: March 26, 1889
Creator: Green, John E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Retort Vaporizer and Superheater

Description: Patent for improvements for vaporizers "of simple and highly efficient means for thoroughly and effectively superheating the vapor of water and oil" (lines 13-15).
Date: March 26, 1889
Creator: Biddison, Stella D.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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