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Microwave sintering of nanophase ceramics without concomitant grain growth (open access)

Microwave sintering of nanophase ceramics without concomitant grain growth

A method of sintering nanocrystalline material is disclosed wherein the nanocrystalline material is microwaved to heat the material to a temperature less than about 70% of the melting point of the nanocrystalline material expressed in degrees K. This method produces sintered nanocrystalline material having a density greater than about 95% of theoretical and an average grain size not more than about 3 times the average grain size of the nanocrystalline material before sintering. Rutile TiO[sub 2] as well as various other ceramics have been prepared. Grain growth of as little as 1.67 times has resulted with densities of about 90% of theoretical.
Date: April 15, 1991
Creator: Eastman, J.A.; Sickafus, K.E. & Katz, J.D.
System: The UNT Digital Library
Composition for Preserving Food (open access)

Composition for Preserving Food

Patent for "combustible compositions which, when ignited, produce a gas or gasses which have preservative and purifying effects upon various substances and surfaces or places exposed to the fumes. It is more especially designed, however, for preserving fruits, vegetables, meats, and other perishable articles." (lines 12-19).
Date: April 15, 1890
Creator: Radam, William
System: The Portal to Texas History
Microwave Sintering of Nanophase Ceramics Without Concomitant Grain Growth (open access)

Microwave Sintering of Nanophase Ceramics Without Concomitant Grain Growth

A method of sintering nanocrystalline material is disclosed wherein the nanocrystalline material is microwaved to heat the material to a temperature less than about 70% of the melting point of the nanocrystalline material expressed in degrees K. This method produces sintered nanocrystalline material having a density greater than about 95% of theoretical and an average grain size not more than about 3 times the average grain size of the nanocrystalline material before sintering. Rutile TiO{sub 2} as well as various other ceramics have been prepared. Grain growth of as little as 1.67 times has resulted with densities of about 90% of theoretical.
Date: April 15, 1991
Creator: Eastman, Jeffrey A.; Sickafus, Kurt E. & Katz, Joel D.
System: The UNT Digital Library
Automobile Body. (open access)

Automobile Body.

Patent for an automobile body that is designed for people who enjoy doing outdoor activities. Compares this design to the current design of what is called "touring cars."
Date: April 15, 1913
Creator: Saxon, Frank
System: The Portal to Texas History
Air Pump (open access)

Air Pump

Patent for an air pump for the delivery of air to the tire of a wheel.
Date: April 15, 1913
Creator: Scott, Charles Mack
System: The Portal to Texas History
Apparatus for Cleaning Cotton. (open access)

Apparatus for Cleaning Cotton.

Patent for an apparatus that cleans burs and other foreign matter from cotton through a suction process prior to ginning, including instructions and illustrations. The inventor claims this apparatus is simpler, more affordable, and more effective than previous methods for cleaning cotton.
Date: April 15, 1913
Creator: Brown, Thomas N.
System: The Portal to Texas History
Beet-Harvester. (open access)

Beet-Harvester.

Patent for a beet-harvester that pulls the beets from the ground and severs the tops from the bodies of the beets.
Date: April 15, 1919
Creator: Faucher, George E
System: The Portal to Texas History
Battery Terminal (open access)

Battery Terminal

Patent for an adaptable battery terminal design.
Date: April 15, 1919
Creator: Luthy, J. O.
System: The Portal to Texas History
Hydrant (open access)

Hydrant

Patent for fire hydrant to help with easy and quick coupling with fire hose and thus to effect prompt release of water from hydrant at full pressure when being coupled.
Date: April 15, 1913
Creator: Duey, Otus E.
System: The Portal to Texas History
Combined Water Gage and Recorder (open access)

Combined Water Gage and Recorder

Patent for a combined gage and recorder meant to measure the water used in steam generators.
Date: April 15, 1919
Creator: Holland, J. M.
System: The Portal to Texas History
Adjustable Trunk-Rack (open access)

Adjustable Trunk-Rack

Patent for a trunk-rack that is adjustable and sturdy. The trunk-rack design indicates that the rack has wheels and adjustable components to accommodate various sized pieces of luggage.
Date: April 15, 1919
Creator: Wessinger, Lon Woodram
System: The Portal to Texas History
Wrench. (open access)

Wrench.

Patent for improvements “in axle-nut wrenches in which the wrench comprising an angular socket portion adapted to extend partially within the wheel-hub to engage the nut,” (lines 81-83) so that the nut may be unscrewed by rotating the wheel. Illustration is included.
Date: April 15, 1902
Creator: Haines, Samuel Alfred
System: The Portal to Texas History
Locking Device. (open access)

Locking Device.

Patent for "improvements in locking devices for motor vehicle steering wheels" (lines 10-11).
Date: April 15, 1919
Creator: Crawford, Jesse L. & Dunlap, Jack R.
System: The Portal to Texas History
Machine for Sawing Marble in Obelisk Form. (open access)

Machine for Sawing Marble in Obelisk Form.

Patent for "a new and Improved Machine for Sawing Marble Blocks in Polygonal Taper Form" (lines 4-6), including illustration.
Date: April 15, 1856
Creator: Haviland, J. E.
System: The Portal to Texas History
Weather Strip or Seal for Sliding Window-Sashes. (open access)

Weather Strip or Seal for Sliding Window-Sashes.

Patent for "a new and Improved Weather Strip or Seal for Sliding Window-Sashes" (lines 5-7), including instructions and illustrations.
Date: April 15, 1913
Creator: Cross, Ralph Waldo
System: The Portal to Texas History
Liquid or Gaseous Fuel Burner. (open access)

Liquid or Gaseous Fuel Burner.

Patent for a fuel burner with a simple design, which is readily taken apart or assembled, and is manufactured at a comparatively small cost.
Date: April 15, 1913
Creator: Vandaveer, Heber Clark & Stoy, Guy Everett
System: The Portal to Texas History
Wagon Attachment (open access)

Wagon Attachment

Patent for a footrest attachment to a child's wagon allowing the operator to push the wagon like a scooter.
Date: April 15, 1913
Creator: Hammond, Jay D.
System: The Portal to Texas History
Window Shade Roller (open access)

Window Shade Roller

Patent for an improved window shade roller design.
Date: April 15, 1919
Creator: Revier, H. R.
System: The Portal to Texas History
Improvement in Distilling Turpentine. (open access)

Improvement in Distilling Turpentine.

Patent for new and useful improvements in apparatus for distilling turpentine to permit continuous distillation.
Date: April 15, 1872
Creator: Lee, Archibald K.
System: The Portal to Texas History
Improvement in Lamp-Burners. (open access)

Improvement in Lamp-Burners.

Patent for a new improvement for Lamp-Burners that helps prevent explosions, including illustrations.
Date: April 15, 1879
Creator: Beeman, Geraldo A. & Ramsey, Haley S.
System: The Portal to Texas History
Improvement in Gate-Hinges. (open access)

Improvement in Gate-Hinges.

Patent for an improvement in the design of gate-hinges, including illustrations.
Date: April 15, 1873
Creator: Stone, John H.
System: The Portal to Texas History
Paddle-Wheel. (open access)

Paddle-Wheel.

Patent for improvements in paddle-wheels by transferring the combined power of the outer paddle-wheel and the inner drum to the shaft thus increased the driving power of the wheel. Illustration is included.
Date: April 15, 1902
Creator: Glardon, Henri
System: The Portal to Texas History
Mechanical Movement. (open access)

Mechanical Movement.

Patent for improved mechanical movements "applicable to windmills for operating pump-rods and the like" (lines 10-11) including instructions and an illustration.
Date: April 15, 1913
Creator: Ward, Ziba G.
System: The Portal to Texas History
Traction-Wheel and Means for Driving Same. (open access)

Traction-Wheel and Means for Driving Same.

Patent for "a new and Improved Traction-Wheel and Means for Driving Same" (lines 5-7) , including instructions and illustrations.
Date: April 15, 1913
Creator: Graley, Morton Adrian
System: The Portal to Texas History