UNT Libraries Government Documents Department - 12 Matching Results

Search Results

Building-Block.

Patent for building block that is easily formed or molded. The building block forms tiers to easy move around and modify.

Date: February 1, 1921

Creator: Pace, Vara L.

Burner.

Patent for improvements in burners to allow them to use liquid fuel such as oil.

Date: June 1, 1920

Creator: Placette, Joeseph G.

Cheese-Cutting Gage.

Letter Patent for gage "for cutting articles in bulk, such as whole cheese" (lines 9-10); including illustration and instructions

Date: May 1, 1900

Creator: Pittman, J. P.

Elevator and Conveyer for Concrete-Mixers.

Patent for improvements in elevators and conveyers for concrete-mixers “whereby the mixed concrete can be fed to the wall mold at different elevations, the elevator being extended and the conveyer raised for constructing the successive stories of the building.” (Lines 17-21) Illustration is included.

Date: July 1, 1913

Creator: Miller, Frederick

Horse-Boot.

Patent for a horse boot that covers and protects the hoof and pastern joint of a horse. It also protects the fetlock joint and practically the entire foreleg below the knee. This device allows for the horse to move without being hindered in any way, or without causing chafing. Both protecting the horse and providing additional comfort and safety.

Date: November 1, 1921

Creator: McKenzie, Joseph H.

Hydraulic Swivel

Patent for the hydraulic swivel. This is an improvement to the hydraulic swivel that already exists. It involves "the rotary well-drilling machines, to permit the flow of water to the point of the drill." (Black)

Date: December 1, 1914

Creator: Black, Lee J.

Improvement in Shingle-Bolting Machines.

Patent for a shingle-bolting machine.

Date: December 1, 1874

Creator: Fletcher, William A.

Manufacture of Aluminum Chlorid

Patent for the manufacture of aluminum chlorid and the method of making aluminum chlorid to produce vapors that are subsequently condensed in any suitable manner. This patent is important because it is advantageous to work with a producer of gas made at as high a temperature. This is because of the greater amount of sensible heat it carries forward for use in the reaction.

Date: July 1, 1919

Creator: King, George H.

Oil-Burning System

Patent for a liquid fuel system used for burning crude oil. Illustrations included.

Date: February 1, 1910

Creator: Duke, Holmes

Refuse-Carrier Frame.

Patent for a support frame for devices that carry refuse from the saw mill to the burning pile, with instructions and illustrations.

Date: March 1, 1892

Creator: Zimmerman, Joseph W.

Rotary Drilling-Machine.

Patent for well drilling rigs also known as rotaries that provides a new way for controlling the slips that eliminates all danger of injury to workers.