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Apparatus for Calcining Plaster

This patent is for an apparatus for calcining plaster of any kind. Or an apparatus that keeps clean the inner surface of a revoluble drum for ventilating the drum during the calcining operation. The apparatus also provides for easily removing the material after the completion of the cooking operation (Lawrence, 1902).

Date: unknown

Creator: Lawwrence, Ambrose

Partner: UNT Libraries Government Documents Department

Cement Kiln

Patent for a new and improved cement kiln for drying gypsum and other materials employed in the manufacture of cement and plaster.

Date: April 28, 1902

Creator: Malone, Samuel R.

Partner: UNT Libraries Government Documents Department

Cement.

Patent for cement of the type commonly known as Keene's cement, which is harder and glossier than other types of cement.

Date: March 23, 1909

Creator: Jones, Thomas

Partner: UNT Libraries Government Documents Department

Cement Plaster Kettle

Patent for a cement plaster kettle. This "invention is an improvement in kettles for cooking gypsum in order to convert the same into cement-plaster" (line 8-10). Illustration included.

Date: April 5, 1904

Creator: Malone, Charles Henry

Partner: UNT Libraries Government Documents Department

Combined Statement-Blank and Envelop.

Patent for combining statement-blank and envelop that comprises a signature that provides the ability to add the bank statements in a paper that could be folded to create an envelop.

Date: November 14, 1905

Creator: Harwell, Mace

Partner: UNT Libraries Government Documents Department

Cement.

Patent for cement that is better or equivalent to Keene's cement from England, made from pure gypsum and various chemicals and only calcinated once.

Date: May 7, 1907

Creator: Jones, Thomas

Partner: UNT Libraries Government Documents Department

Cement Plaster.

Patent for a cement plaster that is similiar to "Keene's" cement.

Date: February 28, 1911

Creator: Cady, Jephtha Daniel

Partner: UNT Libraries Government Documents Department

Corn-Heading Knife.

Patent for a corn cutting knife that straps to the hand and protects the fingers for a more efficient harvesting of corn and maize.

Date: May 2, 1916

Creator: Buchanan, Lemuel O.; Maddox, John S.; Russell, James P. & Speers, Albert

Partner: UNT Libraries Government Documents Department

Automatic Train-Stop

Patent for Automatic Train-Stops "particularly to a system operable in connection with well-known airbrake systems to apply the airbrakes, and shut off the power when an accident of a predetermined character occurs." (lines 10-14) including instructions and illustrations.

Date: May 16, 1916

Creator: Estes, Betram P.

Partner: UNT Libraries Government Documents Department

Car-Replacer

Patent for car replacer. It is an improvement to "what is called a 'frog' or a 'shoe'." The invention involves "two frogs or shoes which are used together" and are used "in such a way as to replace a car truck. . ." (Ledbetter)

Date: December 1, 1914

Creator: Ledbetter, Louis H.

Partner: UNT Libraries Government Documents Department

Two Wheeled Vehicle.

Patent for a new and improved two-wheeled vehicle. This design consists, "with the vehicle-body, the side springs secured thereto, and the bow-shaped brackets secured to said springs, of the axle and the shafts secured to the axle, the links pivoted to the axle and the said brackets and suspending the vehicle-body from the axle, the spring having its rear end secured to the vehicle body and provided with an eye at its front end, the cross-bar connecting the shafts, an eyebolt depending from the… more

Date: October 21, 1890

Creator: Harper, William D.

Partner: UNT Libraries Government Documents Department

Insecticide.

Patent for improvements in poisons for prairie-dogs, a “chemical compositions adapted to destroy vermin and more particularly prairie-dogs; but it may also be used to destroy many other sorts of vermin, including birds and insects.” (Lines 12-16) Ingredients and instruction of how to mix this compound are included. No illustration.

Date: July 28, 1891

Creator: Staples, David W.

Partner: UNT Libraries Government Documents Department

Lock

Patent for a lock used to secure the openings of grain bags. Illustrations included.

Date: May 17, 1910

Creator: Chambless, James A.

Partner: UNT Libraries Government Documents Department

Lawn-Mower

Patent for a lawnmower. Illustrations included.

Date: January 2, 1912

Creator: Klock, George W.

Partner: UNT Libraries Government Documents Department

Stalk-Cutter.

Patent for a stalk cutter for cutting dead stalks left over from the last crop that has an improved rotary cutter and lifting mechanism.

Date: October 22, 1907

Creator: Klock, George Wade

Partner: UNT Libraries Government Documents Department

Tag-Holder.

Patent for a tag holder for attaching to boxes and cases.

Date: September 10, 1907

Creator: Guinn, James J.

Partner: UNT Libraries Government Documents Department

Method of Purifying Water

Patent for a method of purifying water.

Date: October 25, 1904

Creator: Jones, Thomas

Partner: UNT Libraries Government Documents Department

Pump Jack

Patent for an improved double-acting pump jack that will require less parts and external force to operate and maintain.

Date: April 29, 1919

Creator: Lively, William

Partner: UNT Libraries Government Documents Department

Sulky.

Patent for improvements in sulkies by using materials such as curved springs, cross-bar and braces to support the body of the vehicle and making it rigid, with a sturdy frame, the sulky would vibrate freely in every direction. Illustration is included.

Date: July 28, 1891

Creator: Harper, William D.

Partner: UNT Libraries Government Documents Department

Stove

Patent for a more efficient and cost effective heating apparatus. The stove is designed for coal and similar fuel sources.

Date: December 14, 1915

Creator: Hanna, John J.

Partner: UNT Libraries Government Documents Department

Generator for Acetylene Gas

Patent for a new and improved generator for acetylene gas.

Date: November 16, 1897

Creator: Williams, Benjamin F.

Partner: UNT Libraries Government Documents Department

Gearing For Bicycles.

Patent relating to "a new and useful improvement in gearing for bicycles and the like, and has for its object to so construct and arrange a device of this description as to avoid sudden shocks or jars which are occasioned by unevenness in the road-bed over which the machine is traveling, and also to enable the rider to exert a sudden force upon the pedals without straining the framework or wheels of the machine" (lines 9-18).

Date: August 17, 1897

Creator: Godfray, Ernest H.

Partner: UNT Libraries Government Documents Department

Fountain-Pen.

Patent for a fountain pen that has a piston which suctions ink into the pen's barrel and feeds it to the pen-point. The pen will be sturdy with no loose parts.

Date: September 1, 1896

Creator: Rogers, William Joseph

Partner: UNT Libraries Government Documents Department

Shot-Carrying Shell.

Patent for "a cartridge-shell which shall clean the barrel of the gun each time one is discharged, thereby preventing the gun becoming foul or clogged," and "which can be employed for shooting shot at long or short range." (Lines 11-17) Includes instructions and illustrations.

Date: March 30, 1897

Creator: Williams, Benjamin F.

Partner: UNT Libraries Government Documents Department

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