UNT Libraries Government Documents Department - 125 Matching Results

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Agitator.

Description: Patent for an improved device to produce a useful agitation of liquid in washing machines by configuring the paddles or blades in the most effective manner, including illustrations.
Date: February 23, 1915
Creator: Babek, Aloysius S.
Item Type: Refine your search to only Patent

Animal-Trap.

Description: Patent for a "self-setting" (line 16) trap with a "tilting platform" (line 17) including an illustration. The trap is designed to retain the animal and is made for easy removal of the animal.
Date: September 9, 1913
Creator: Trull, Harvey L.
Item Type: Refine your search to only Patent

Apparatus for Forming Gun Barrels.

Description: Patent for an apparatus for forming gun barrels that twists a sheet of metal into a tube for the gun barrel at a slight angle, while slightly flattening the tube into an oval shape. This method is supposed to create ribs within the gun barrel.
Date: September 10, 1917
Creator: Cole, William F.
Item Type: Refine your search to only Patent

Automatic Gun Firing Mechanism.

Description: Patent for an automatic gun firing mechanism intended to protect gardens, orchards, and fields by scaring off birds and other animals that destroy crops through automatic discharge of a firearm at predetermined intervals.
Date: March 18, 1913
Creator: Steinocher, John
Item Type: Refine your search to only Patent

Automatic Train-Pipe Coupling

Description: Patent for a coupler adapted to be employed for operatively uniting the fluid pressure pipes of a pair of railway vehicles, when the vehicles are coupled up. The invention aims to improve the construction of the main pipe through the instrumentality of which the coupling operation is immediately effected, and to provide a means whereby the pipe is mounted in such a way as to have the necessary movemtns.
Date: January 11, 1916
Creator: Cobb, John Ollen
Item Type: Refine your search to only Patent

Automobile-Cooling System

Description: Patent for an improvement to the cooling system of the internal combustion engine of an automobile. "The object of the invention being to provide an improved cooling system of this kind which embodies means for cooling the circulatory water in the radiator by forcing air therethrough and also embodies means for directly cooling the engine by subjecting the same to the action of a blast of air."
Date: September 3, 1918
Creator: Goodwin, Thomas J.
Item Type: Refine your search to only Patent

Burglar Alarm

Description: Patent for alarm that is activated upon the closing of a circuit, which will occur when an intruding person enters through the window or door.
Date: February 27, 1917
Creator: Hilley, Albert O.
Item Type: Refine your search to only Patent

Cigar-Box Clip.

Description: Patent for an inexpensive improvement to cigar box clips or clamps, that will make it easier for the box to be left open at a tilted angle, for the purpose of displaying the cigars or other objects inside.
Date: November 21, 1911
Creator: Holder, Andrew Thomas.
Item Type: Refine your search to only Patent

Clothes-Pin.

Description: Patent for Clothes Pin made of galvanized wire that will remain normally on the line. It will also prevent the adjacent pins from becoming tangled together. It's twisted portions adapted for riding content with the line to hold the pin in operative position.
Date: April 8, 1913
Creator: Perry, Cornelius Doctor & Wosnig, Walter, E.
Item Type: Refine your search to only Patent

Cooking Utensil.

Description: Patent for a new and improved double boiler "used for continuous cooking for a long period, without replenishing the water supply" (lines 18-20) and to "improve the general efficiency of double boilers of the indicated character" (lines 22-23) including illustrations.
Date: April 4, 1916
Creator: Curran, William Ferris
Item Type: Refine your search to only Patent
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