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Hairpin

Description: Patent for preventing "the accidental displacement of the dislodgment of the pin from the hair of the wearer." (Lines 11-12).
Date: September 11, 1919
Creator: Nalle, Charles R. of Forth Worth, TX
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Tunnel-Driving Machine.

Description: Patent for "new and useful Improvements in Tunnel- Driving Machines" (lines 5-6), including instructions and illustrations.
Date: September 2, 1913
Creator: Speer, George F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Valve for Explosive-Engines.

Description: Patent for engine valves (rotary type) that are noiseless, connected to the the engine cylinders so that they are self grinding and self adjusting, and that cover and uncover the spark plug in a way that prevents fouling it.
Date: September 2, 1913
Creator: Ray, Albert J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pump-Controlling Switch.

Description: Patent for a pump controlling electric switch that automatically turns on the pump when water covers it and turns off the switch when it is dry.
Date: September 26, 1911
Creator: Gamer, Charles
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Matrix-Molding Device

Description: Patent for improvements to matrix-molding devices, "and the object is to provide simple devices which are carried by the matrices or molding devices for forming rule retaining members which have angular grooves" (lines 14-17).
Date: September 12, 1913
Creator: Markwell, Andrew E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Nutcracker

Description: Patent for improvements in nutcrackers that make it easier and safer to use, and more easily retrieve the contents of the nut. It is durable and can be manufactured at low cost.
Date: September 15, 1914
Creator: Dato, Edward
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Safety-Catch for Breastpins, &c.

Description: Patent for a safety catch for breast pins, brooches, and other jewelry, that, while easy to easy to use, will not come lose during normal wear. It uses a rigid guard and spring to hold the tongue of the pin in place until released with a lever.
Date: September 19, 1911
Creator: Ferruggiari, Cesar
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Silo.

Description: Patent for a new, water-tight silo that can be easily assembled without skilled labor and can be set up anywhere, including illustrations.
Date: September 1, 1914
Creator: Brookshire, Samuel N.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Spring and Power Pull Back for Hay Balers

Description: Patent for a spring and power pull back for hay balers. This invention is a hay baler "in which the plunger is moved inward by power and drawn outward by power or by a spring" (lines 10-12). Illustrations included.
Date: September 27, 1910
Creator: Schubert, George
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Bag-Turner

Description: Patent for "a machine which will perform the whole act of turning a sack" (lines 11-12), including illustrations.
Date: September 28, 1915
Creator: Hirschfeld, Ike
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Gas-Purifier

Description: Patent for a device that separates impurities and contaminants from gas used in generators. A series of filters, and baffles are used to extract impurities to the gas supplied to a generator.
Date: September 16, 1919
Creator: Modlin, Frank E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Coin-Controlled Slide

Description: Patent for a coin-controlled slide used for operating mechanical musical instruments and vending machines. Illustrations included.
Date: September 13, 1910
Creator: Hammond, Robert P.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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