UNT Libraries Government Documents Department - 23 Matching Results

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Sand and Slime Separator and Classifier.

Patent for a sand and slime separator and classifier for use in mining operations.

Date: December 7, 1909

Creator: Allen, Charles

Item Type: Patent

Combined Indian Club and Dumb-Bell.

Patent for a combined Indian club and dumbbell, which are easily interchanged and having varying weights.

Date: October 19, 1909

Creator: Burr, William H.

Item Type: Patent

Electromagnetic Ore-Separator.

Patent for an electromagnetic ore separator, which reduces the risk of any valuable particles falling with the waste mineral material below the magnetic surface.

Date: February 16, 1909

Creator: Charlton, Thomas

Item Type: Patent

Seal-Lock.

Patent for a seal lock for railroad cars, which will show whether an unauthorized entry has been made by requiring the seal ton be broken before the lock opens.

Date: April 27, 1909

Creator: Christian, Edward L.

Item Type: Patent

Harness.

Patent for a harness for racing horses and buggies, which eliminates the jerky motion of the buggy from the movement of the horse.

Date: November 16, 1909

Creator: Crawford, Hezekiah H.

Item Type: Patent

Metallurgical Process

Patent for a process for reducing minerals to metals, including instructions and illustrations.

Date: October 5, 1909

Creator: Dawson, Oliver B.

Item Type: Patent

Door Brace

Patent for a door brace. Illustration included.

Date: December 21, 1909

Creator: Friberg, Charles

Item Type: Patent

Letter-Tying Device

Patent for a package tie. Illustrations included.

Date: January 12, 1909

Creator: Greenwood, Bluford P.

Item Type: Patent

Letter-Tying Device

Patent for a package tie. Illustrations included.

Date: June 22, 1909

Creator: Greenwood, Bluford Preston

Item Type: Patent

Toy Gun

Patent for a toy gun. Illustrations included.

Date: April 13, 1909

Creator: Griffith, Jesse B.

Item Type: Patent

Leather Product and Process for Making the Same.

Patent for a process of treating leather that produces leather that is heavier and more durable for shoe soles by coating it in linseed oil and soaking it in a bath of Portland cement, borax, and water for at least 24 hours and then coating it with linseed oil a second time.

Date: February 2, 1909

Creator: Mackay, Hugh

Item Type: Patent

Air-Cleaning System

Patent for an air cleaning system to be used in homes. Illustrations included.

Date: April 20, 1909

Creator: Mayo, William C. & Houlehan, John

Item Type: Patent

Cleaning Apparatus.

Patent for a cleaning apparatus, which cleans objects by blasting air across them and has an air cleaning system for use after the cleaning is done.

Date: June 1, 1909

Creator: Mayo, William C. & Houlehan, John

Item Type: Patent

Governor for Explosive-Engines.

Patent for a governor for explosive engines for use in trains, which will increase the fuel efficiency of the engines.

Date: April 27, 1909

Creator: Mayo, William C. & Houlehan, John

Item Type: Patent

Railway-Switch.

Patent for a railway switch that can be activated from a moving train and has its moving parts in a casing.

Date: November 23, 1909

Creator: McCalib, David C.

Item Type: Patent

Coffee Urn

Patent for a coffee urn. This invention is designed to percolate liquid repeatedly through the grounds to increase the strength of the coffee. Illustration included.

Date: March 2, 1909

Creator: Nenninger, Oscar A.

Item Type: Patent