UNT Libraries Government Documents Department - 233 Matching Results

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Automatic Separating Device.

Description: Patent for an automatic separating device. This device operates with a link that connects the float level at the top of the tank with a valve handle at the bottom of the tank to control discharge from the tank.
Date: January 22, 1918
Creator: Allen, Charles
Item Type: Refine your search to only Patent

Slime Pulp Thickener.

Description: Patent for a "device for thickening slime or pulp, and particularly pertains to a structure similar to that disclosed in my co-pending application entitled "Slime pulp thickener," serial number 173,785, filed June 9, 1917, and of which the present application is a division" (lines 8-14). Additionally, described as a device that automatically releases thickened pulp when proper density is achieved.
Date: October 5, 1918
Creator: Allen, Charles
Item Type: Refine your search to only Patent

Slime-Separator.

Description: Patent for a slime-separator "to provide means for automatically regulating the separate water flow, and discharging the solid proportionally with the settling of the solids in the receptacle" (lines 44-47). The patent includes illustrations and instructions.
Date: November 24, 1914
Creator: Allen, Charles
Item Type: Refine your search to only Patent

Necktie

Description: Patent for a pre-made necktie. This is a pre-made four in hand necktie that is designed to be adjustable to various neck sizes and made to not tear a shirt collar.
Date: April 27, 1915
Creator: Allen, Joseph H.
Item Type: Refine your search to only Patent

Pumping-Engine.

Description: Patent for a pumping engine that pumps air, water, oil, or other agents. It was designed to be used for air pumps on locomotives, inflating tires on automobiles, pumping water in steam operated machines, and other uses.
Date: June 5, 1917
Creator: Allison, Jesse H.
Item Type: Refine your search to only Patent

Low-Water Alarm For Boilers

Description: Patent for "improvements in low water alarms for steam boilers and more particularly to those which are operated by the heat from the steam in the boiler, after the water therein has fallen below a predetermined danger point" (lines 15-20).
Date: January 5, 1915
Creator: Anderson, Williamson D. & Shearer, Edward J.
Item Type: Refine your search to only Patent

Triple Valve

Description: Patent for a triple valve for air brakes on trains that gives the engineer more control over the brakes.
Date: August 13, 1912
Creator: Anderson, Williamson D. & Shearer, Edward J.
Item Type: Refine your search to only Patent

Type Writing Machine

Description: Patent for type-writing machine used to center heading on a document in typewriting machines. With the success of the invention, the carriage-spacing key is depressed once for each letter in the word being centered.
Date: August 1, 1916
Creator: Barker, Benjamin F.
Item Type: Refine your search to only Patent

Aerial Projectile and Launching Mechanism Therefor

Description: This document is a patent for the invention of the Aerial Projectile and Launching Mechanism Therefor. According to its inventor Frank M. Bell, the object of this mechanism is to fire aerial projectiles or torpedoes more accurately at their intended target. This mechanism can be called an anti-observation balloon/zeppelin weapon and it would see some usage by the Allied air forces during this conflict.
Date: October 10, 1916
Creator: Bell, Frank M.
Item Type: Refine your search to only Patent
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