UNT Libraries Government Documents Department - 1,371 Matching Results

Search Results

Results: 1 - 24 next

Adding-Machine

Description: Patent for improvements to adding machines, which is key-operated and includes a vertically disposed shaft and a means to actuate the sliding plate.
Date: January 5, 1915
Creator: Gatewood, William F.
Item Type: Refine your search to only Patent

Adjustable and Detachable Bow for Spectacles.

Description: Patent for a temple bow for spectacles which is secured to a lens frame and is adjustable to “accommodate the angle of vision of the wearer” (lines 89-90). The connection joints between the bow and lens frame allows adjustment without bending or twisting the bow, providing a more durable bow and frame.
Date: January 13, 1914
Creator: Blanchard, Edward.
Item Type: Refine your search to only Patent

Aerocompass.

Description: Patent for an aerocompass, which improves upon a compass combined with inclinometers or map-boards. It is intended for use on submarines, airplanes, or in an area when it would be difficult to use a regular compass.
Date: January 8, 1918
Creator: Fischer, Fred Charlie.
Item Type: Refine your search to only Patent

Aeroplane.

Description: Patent for an airplane (or aeroplane) which provides a large number of control surfaces adjustable by the pilot, including a moveable engine.
Date: January 7, 1919
Creator: Millican, Joel Walter
Item Type: Refine your search to only Patent

Aeroplane-Tail.

Description: Patent for improvements to the tail of aeroplanes. This invention is to be used to help control the flight of planes or heavy projectiles, and would not have effects on the equilibrium or be difficult to use.
Date: January 18, 1921
Creator: Joseph, M. Krowka
Item Type: Refine your search to only Patent

Agricultural Implement.

Description: Patent for "the production of simple and inexpensive means whereby the ordinary farming implements--such as plows, cultivators, and the like--may be readily convert to the sulky or wheeled type." (line 11-15) including instructions and illustrations.
Date: January 23, 1906
Creator: Cornelison, Jesse U.
Item Type: Refine your search to only Patent

Air-Brake.

Description: Patent for train air-brakes to provide set brakes and same auxiliary pressure on all cars regardless of the brake cylinder piston travel distance.
Date: January 13, 1914
Creator: Wolf, Gustav B.
Item Type: Refine your search to only Patent

Air Intake Device.

Description: Patent for an air intake device for automobiles and other internal combustion engines. Provides novel and improved heated air supply for carburetors during cold weather. Adjustable to admit unheated air in various proportions according to the air temperature and weather.
Date: January 29, 1918
Creator: Hornburg, C.A.
Item Type: Refine your search to only Patent

Airship

Description: Patent for a dirigible airship for aerial navigation, "to provide the balloon or gas bag with aeroplanes which serve to steady the balloon during the flight of the ship, and to increase the lifting power of the balloon when the ship is under motion, the arrangement being such as to enable said aeroplanes to be converted into a parachute, should the balloon or gas bag become deflated" (lines 20-28).
Date: January 17, 1911
Creator: Keller, James M.
Item Type: Refine your search to only Patent

Animal-Poke.

Description: Patent for an animal-poke that is "placed over the animal's neck and provided with spurs, whereby the animal is pricked when he attempts to pass a fence or other barrier" (lines 9-12). This invention doesn't prick the animal while it is grazing and is more comfortable to wear than similar animal-pokes.
Date: January 14, 1896
Creator: Dickey, John S.
Item Type: Refine your search to only Patent
Back to Top of Screen