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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 Mail and Parcel Delivery Apparatus

Description: Patent for a automated motorized mail delivery vehicle that travels in the air on electric lines on poles to deliver incoming mail and retrieve outgoing mail from rural routes or parcels in urban areas.
Date: March 5, 1907
Creator: Dederick, Zadoc P.
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Partner: UNT Libraries Government Documents Department

Automatic Electric Switch

Description: Patent for an automatic electric switch. This invention consists of a series of switches and a rotary switch run by electromagnetic key operating motor. Illustration included.
Date: December 15, 1903
Creator: Guthrie, William S.
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Partner: UNT Libraries Government Documents Department

Automatic Fire-Alarm.

Description: Patent for the automatic fire alarm system relates to a fusing wire that reacts to any heat or fire by closing circuit inside of the battery resulting in sounding off the alarm, and thus, improving the fire-alarm system structure.
Date: March 15, 1904
Creator: Fred, Mason K.
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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

Apparatus for Protecting Electrical Circuits.

Description: Patent for an apparatus for protecting electrical circuits, and is an improvement on a previous patent (No. 537,932) issued to the inventor. This patent consists of "an electrical circuit, an alarm or indicator, a continuously-operating signal-transmitter at the protected structure operating to affect or influence the alarm or indicator, and a second or duplicate continuously-operating signal-transmitter located at the watchman's station, operating in unison with the first-named signal-transmit… more
Date: January 7, 1896
Creator: Oram, John M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Automatic Telephone-Exchange System.

Description: Patent for "a simple system and arrangement which is especially adapted for a telephone exchange, which enables the instruments to be connected by a single wire, which dispenses with the use of an operator at the central station, which has automatic means for registering the messages sent by each subscriber, and which is provided with an automatic switching device by means of which one subscriber may connect with any other" (lines 10-19).
Date: December 5, 1893
Creator: Serdinko, John
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Automatic Fuse Plug

Description: Patent for "improvements in automatic fuse plugs" (lines 12-12). These are "adapted to be successively engaged by a swinging contact arm" (lines 16-17).
Date: May 19, 1914
Creator: Bowman, Levi M.
Item Type: Refine your search to only Patent
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.
Item Type: Refine your search to only Patent
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
Item Type: Refine your search to only Patent
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

Insulator.

Description: Patent for an insulator for water pipes that conducts away electric current to be utilized elsewhere.
Date: December 25, 1917
Creator: Stone, Oscar Otto
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Junction-Bracket

Description: Patent for a junction box for automobile wiring. This junction box attempts to place wiring connections that are prone to break due to vibrations from the vehicle in one place. The location of the junction box should allow for less stress on the vehicles wiring as well as provide for easier replacement of connections and wires when servicing is required.
Date: September 16, 1919
Creator: Teachworth, William H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Wave-Motor.

Description: Patent for a wave motor including an apparatus within a wave disturbed liquid using a power converting mechanism to convert energy in a more convenient form, including illustrations.
Date: April 4, 1916
Creator: Fousek, Karl
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Windmill

Description: Patent for windmill for utilizing wind or water power (lines 9-10).
Date: June 12, 1883
Creator: Sickles, William C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Wave Motor

Description: Patent for an improvement to wave motors, intended to use "the force of waves as motive power for operating machinery" (lines 9-10).
Date: July 11, 1911
Creator: Ford, William W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Windmill.

Description: Patent for an improvement to the "construction of windmills and to provide means for varying the stroke of a windmill with the velocity or force of the wind, to increase the length of the stroke as the velocity of the wind increases, and to reduce the length of stroke as the force of the wind abates." (lines 10-16)
Date: November 18, 1902
Creator: Tinney, James R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Magneto-Electric Telegraphy.

Description: Patent for a machine that telegraphs messages between distant points by means of induced currents that produce magnets without the use of battery current, including illustrations.
Date: August 18, 1885
Creator: Brown, Fred H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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