UNT Libraries Government Documents Department - 225 Matching Results

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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

Advertising Device.

Description: Patent for an advertising machine that is motor-operated and will display a succession of slides that can be shown during the day or at night. It includes a light to help show slides to the public, a shutter that automatically and intermittently displays slides, a lens for projecting slides on a distant screen, and a master slide to be shown with each slide. The patent includes illustrations.
Date: August 5, 1913
Creator: Bernard, Oscar C.
Item Type: Refine your search to only Patent

Advertising-Sign.

Description: Patent for an advertisement sign with a translucent display band that illuminates different sections of letters, numbers, or figures, in various colors, giving the appearance of animation.
Date: August 5, 1919
Creator: Craig, Richard M.
Item Type: Refine your search to only Patent

Aeroplane

Description: Patent for an aeroplane. This invention does not use any mechanism to maintain the planes equilibrium. Illustration included.
Date: November 5, 1912
Creator: Goebel, Alois
Item Type: Refine your search to only Patent

Airship-Destroyer.

Description: Patent for a new airship-destroyer with the new ability to fire pellets and bombs in various directions and differing altitudes (lines 8-12), to ignite fuses to prime the device for firing at a predetermined altitude (lines 13-19), to incorporate a bomb to explode upon contact with the airship (lines 20-24), and to provide the projectile with a rocket to propel it to a greater altitude (lines 25-28).
Date: November 5, 1918
Creator: Saladiner, Joseph M.
Item Type: Refine your search to only Patent

Apparatus for Treating Hydrocarbons.

Description: Patent for an improved apparatus for treating hydrocarbons. This apparatus is for treating comparatively heavy petroleum and other hydrocarbon oils and their distillates and derivatives, in order to produce from such heavy oils a large yield of gasoline or other light, easily volatile liquids. This apparatus will be a safe and efficient way to produce large yield of gasoline and light hydrocarbon liquids from heavy oils and will be free from trouble arising from the accumulation of carbon.
Date: August 5, 1919
Creator: Andrews, Benjamin & Averill, Willard C., Jr.
Item Type: Refine your search to only Patent

Automatic Fire and Burglar Alarm.

Description: Patent for automatic fire and burglar alarm. A cord extends from the casing of the alarm mechanism to a window. The alarm is triggered either by weight of a window opening or the cord is burned by fire.
Date: March 5, 1918
Creator: Mann, Oscar O. & Whitley, William H.
Item Type: Refine your search to only Patent

Automatic Lock for Cotton Gins

Description: Patent for an automatic lock for cotton gins. It provides an automatic latch having a constant tendency toward the latching position, but yieldable to the opening of breast of the cotton gin. This is to prevent accidents involving the removing of obstruction in the gin happening to those removing the obstruction. Illustrations are provided.
Date: February 5, 1918
Creator: Henson, William Marion
Item Type: Refine your search to only Patent

Bag-Mouth-Spreading Device

Description: Patent for a device which holds open the mouth of a bag or sack so that it can be easily filled. The device works with bags hung on a post or with bags hung from the shoulder, as a cotton picker's sack.
Date: January 5, 1915
Creator: Willoughby, Alfred Pervis
Item Type: Refine your search to only Patent

Bale-Tie Buckle

Description: Patent for a bale-tie buckle which can be fastened quickly. The bale-tie buckle "can be economically manufactured," is "capable of resisting enormous pressure," and "can be quickly and easily placed on the bands or ties."
Date: January 5, 1915
Creator: Horsley, Robert L.
Item Type: Refine your search to only Patent
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