UNT Libraries Government Documents Department - 38 Matching Results

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Automatic Air-Brake Coupling.

Description: Patent for "a new and useful improvements in automatic air-brake couplers to enable others skilled in the art to make and use the same, the invention also relates to improvements in automatic air-brake couplings in cars". (lines 5-10) including instructions and illustrations.
Date: July 17, 1900
Creator: Cary, Lewis C.
Item Type: Refine your search to only Patent

Bolster-Standard.

Description: Patent for a durable, simple, and easily applied bolster-standard meant to be secured to the bolster and does not allow the bolster to split or crack.
Date: July 30, 1895
Creator: Bennett, Thomas H.
Item Type: Refine your search to only Patent

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

Process of Making Hydrochloric Acid and Calcium Carbid

Description: Patent for "new and useful processes in treating fused calcium chlorid with acetylene gas or other gases mixed therewith, whereby hydrochloric-acid gas and calcium carbid may be produced," (lines 12-16) thus making the manufacturing processes of hydrochloric-acid cheaper while also producing calcium carbid more economically.
Date: July 24, 1906
Creator: Seamon, William H.
Item Type: Refine your search to only Patent
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