19 Matching Results

Search Results

Results: 1 - 19

Process of Leaching Copper Ores

Description: Patent for "a method of recovering copper by the electrolysis of copper solutions of any suitable kind, obtained by the lixiviation of the ore" (lines 9-12). The improvement in this method is that almost all the sulfuric acid and other leaching agents are used up prior to the copper going to the electrolysis tanks which increases the amount of copper recovered and the reduction of accumulated biproducts.
Date: October 22, 1918
Creator: Hahn, Albert W.
Partner: UNT Libraries Government Documents Department

Paper-Guide

Description: Patent for a paper guide for paper and carbon paper for typewriters.
Date: October 8, 1912
Creator: Davis, Alice Urilla
Partner: UNT Libraries Government Documents Department

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
Partner: UNT Libraries Government Documents Department

Signal

Description: Patent for an automobile to signal the direction the car will go. The signal tool functions as a hand on each side of the car and can withstand the weather.
Date: October 15, 1918
Creator: Hibbert, Lammers R.
Partner: UNT Libraries Government Documents Department

Transmission-Gearing for Station-Indicators.

Description: Patent for a transmission device that indicates railway stations. The transmission gear can affix to any railway or street car. The transmission gearing helps to indicate (or display) accurately the names of stations or streets in conservative order.
Date: October 30, 1917
Creator: Tarbell, Cassius C.
Partner: UNT Libraries Government Documents Department

Dust and Wind Guard

Description: Patent for a window designed to shield against dust and wind. Illustrations included.
Date: October 25, 1910
Creator: Anson, Warren J.
Partner: UNT Libraries Government Documents Department

Protector for Detonator-Caps.

Description: Patent for a detonator cap that acts as a "protecting device...to seal the inner end of the cap into which the adjacent end of the fuse is projected in use." (lines 13-16)
Date: October 9, 1917
Creator: Dillard, George L.
Partner: UNT Libraries Government Documents Department

Apparatus for Separating or Concentrating Ores.

Description: Patent for an improvement to hydraulic separators used in frothing classification to increase the recovery of larger mineral particles.
Date: October 21, 1919
Creator: Cole, David
Partner: UNT Libraries Government Documents Department

Projecting-Machine.

Description: Patent for improvements to a projector that relate to advertising. The inventor references adjustments to a previous patent, No. 1069521 from August 5, 1913. Adjustments include making the device more accurate and reliable, and to adapt it to be able to display opaque surfaces, postcards, and other printed items during any time of day. Additionally, the revoluble slide magazine has a mechanism that allows it to operate continuously without assistance from the operator.
Date: October 7, 1919
Creator: Bernard, Oscar C.
Partner: UNT Libraries Government Documents Department

Tube-Mill.

Description: Patent for improvements in tube-mills (employed for ore and other substances) which is meant to help support and drive rotating drums or cylinders of the mills allowing for more full appearances.
Date: October 1, 1918
Creator: Bergman, Julius G.
Partner: UNT Libraries Government Documents Department

Direction-Indicator

Description: Patent for Direction Indicator for a motorized vehicle. This particular model is electrically operated and used to indicate to other vehicles and pedestrians, what the vehicle intends to do and aims to reduce accidents.
Date: October 9, 1917
Creator: Britton, Osa Leo
Partner: UNT Libraries Government Documents Department

Tool-Handle

Description: Patent for a tool handle for saws. Illustrations included.
Date: October 29, 1912
Creator: McDermid, Archie
Partner: UNT Libraries Government Documents Department

Vehicle-Signal

Description: Patent for vehicle signal with accompanying illustrations.
Date: October 23, 1917
Creator: Edmond, George Woodbridge
Partner: UNT Libraries Government Documents Department

Windmill.

Description: Patent for a windmill with vanes that can compensate for varying wind speeds without being damaged by high winds.
Date: October 21, 1919
Creator: Ochoa, Victor Leaton
Partner: UNT Libraries Government Documents Department

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.
Partner: UNT Libraries Government Documents Department

Woodworking-Clamp.

Description: Patent for woodworking clamp that is adjustable so that it can be used with many different shapes and sizes.
Date: October 14, 1913
Creator: Seidel, Emil K. F.
Partner: UNT Libraries Government Documents Department

Well Cleaning Device

Description: Patent for a device to clean a well to prevent pumps from being clogged.
Date: October 7, 1913
Creator: Kilburn, John Franklin
Partner: UNT Libraries Government Documents Department

Process and Machine for Making Bricks.

Description: Patent for improvements to brick making machines that will produce bricks with a textile finish.
Date: October 19, 1915
Creator: Rodgers, Edward H.
Partner: UNT Libraries Government Documents Department

Switch-Operating Device.

Description: Patent for Switch-Operating Device. Invented to be operated from lead car or end car without having to stop train.
Date: October 14, 1913
Creator: McCombs, Marshall M.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen