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Conduit Electric Railway.

Description: Patent for an underground conduit electric railway meant to propel cars. The conduit can be drained and kept dry, and a trolley attachment protects the conduit from dirt and water as well.
Date: December 5, 1893
Creator: de Voe, William R.
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Partner: UNT Libraries Government Documents Department

Battery.

Description: Patent for an improvement to batteries, particularly pertaining to their electrochemical components, including an illustration and instructions.
Date: June 10, 1919
Creator: Crowley, Richard Joseph
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Partner: UNT Libraries Government Documents Department

Battery-Plate and Terminal Connection

Description: Patent for improvements on a battery plate and terminal connections. Plate lugs and the terminal for the battery are a solid piece to fit more battery sizes and prevent the lugs from breaking off.
Date: May 4, 1920
Creator: Hawkins, Alda F.
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Partner: UNT Libraries Government Documents Department

Battery-Connector

Description: Patent for a battery connector for providing electricity in homes without being connected to a power plant.
Date: October 15, 1912
Creator: Hall, James Monroe
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Partner: UNT Libraries Government Documents Department

Automatic Circuit Maker and Breaker

Description: Patent for automatic circuit maker and breaker that automatically cuts off the circuit to electric lights. Also for automatically completing circuits to said lights at the proper time
Date: November 2, 1915
Creator: Scholl, Max
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Partner: UNT Libraries Government Documents Department

Arc-Lamp

Description: Patent for an arc lamp which does not spark for use in headlights for trains and automobiles and in street lights.
Date: June 28, 1910
Creator: Anderson, Thomas J.
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Partner: UNT Libraries Government Documents Department

Animated Sign

Description: Patent for a display apparatus to be implemented as animated advertising signs which successively display different images by controlling the timing of changes in the colors of light used to flood the front and to backlight the display surfaces. The images are created in such a way that certain elements created in certain colors become absorbed or are made invisible when illuminated by certain colors of light. An apparatus controls the cyclical changes of the colored lights used by the sign.
Date: September 5, 1922
Creator: Craig, Richard M.
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Partner: UNT Libraries Government Documents Department
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