UNT Libraries Government Documents Department - 19 Matching Results

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Combined Ruler and Blotter

Description: Patent for a combined ruler and blotter (used for writing with ink). Proposed improvement of basic design by being more compact, cheaper to make, and includes a way to tear paper along the ruler's edge.
Date: July 28, 1914
Creator: Schmidt, Edward
Item Type: Refine your search to only Patent

Lamp Attachment

Description: Patent for a new and improved Lamp Attachment which instantaneously extinguish lamp mechanically, without necessitating the employment a person's breath or the elevation of the lamps chimney.
Date: July 8, 1919
Creator: Rodriguez, Gavino
Item Type: Refine your search to only Patent

Paper-Guide.

Description: Patent for a Paper-Guide that can be folded, when it is not in service position, to allow it to be covered by the typewriting machine it is attached to. The patent includes illustrations.
Date: July 22, 1913
Creator: Davis, Alice Urilla
Item Type: Refine your search to only Patent

Piston

Description: The Patent for an improved piston to be used in connection with the cylinders of air brakes. The improvement involves making the removal and replacement of worn out packing material easier.
Date: July 22, 1913
Creator: King, Herbert G.
Item Type: Refine your search to only Patent

Priming Device.

Description: Patent for a priming device, used on internal combustion engines, that can be used to assist an engine heat up. Through this device, users can accelerate this process and benefit from a more fuel-efficient vehicle.
Date: July 9, 1918
Creator: Brooks, Howard
Item Type: Refine your search to only Patent

Screening Device.

Description: Patent for a screening device that offers "an improved means for imparting motion to and controlling or varying the motion of the screen to affect a separation of the materials undergoing treatment." (lines 10-13).
Date: July 24, 1917
Creator: Cole, David
Item Type: Refine your search to only Patent

Support.

Description: Patent for improvements in supports for cots or mosquito nettings with an objective to present a novel and convenient device that is applied in operative positions.
Date: July 4, 1916
Creator: Pewther, Judson C.
Item Type: Refine your search to only Patent
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