UNT Libraries Government Documents Department - 43 Matching Results

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Apparatus for Calcining Plaster

Description: 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

Automatic Train-Stop

Description: 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.

Car-Replacer

Description: 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.

Cement.

Description: 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

Cement.

Description: 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

Cement Kiln

Description: 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.

Cement Plaster Kettle

Description: 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

Churn.

Description: Patent for a new and improved hand churn, that rests on any flat surface to create better support during use.
Date: February 10, 1914
Creator: Trout, Ed T.

Churn

Description: Patent for a churn that can produce butter in very short period of time with minimal effort.
Date: May 19, 1913
Creator: Hoefer, Charles Jr.; Belt, Marcus L. Jr. & Belt, William R.

Cooking Utensil.

Description: Patent for cooking utensil designed for roasting coffee, popping corn, roasting meat, and other food by hand over a fire or flame by rotating. The device is made of metal and mesh, turns by cranking, and the length of the shaft is adjustable for stability.
Date: June 17, 1919
Creator: Bogue, Robert J.

Cooling and Disinfecting Device.

Description: Patent for improvements in fluid cooling and disinfecting devices. The primary object of improvements is "to provide a simple, inexpensive and efficient device of this character which will be well adapted to the purpose for which it is designed."
Date: February 23, 1915
Creator: Womack, Samuel W.

Corn-Heading Knife.

Description: 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

Cotton Chopper.

Description: Patent for cotton chopper that frees the plants from the "weeds and the soil thereabout cultivated in but a single operation" (lines 14-16).
Date: February 11, 1919
Creator: Goodman, William T.

Cotton-Separator

Description: Patent for an apparatus for cleaning seed cotton and separating the dust and dirt therefrom prior to the ginning operation. The apparatus will have a perforated metal disk or wheel where cotton will readily slide off, instead of getting clogged. The separator wheel will have a smooth plane surface that will cause no injury to the cotton and the entire surface is freely exposed and unobstructed.
Date: September 7, 1915
Creator: Hughes, James Y.

Cut-Off.

Description: Patent for a cut-off for water pipes, which provides a new construction to control the flow of supply of water from a roof.
Date: February 27, 1912
Creator: Pruden, John B.

Drag-Harrow.

Description: Patent for an improved drag harrow for plowing soil. "The primary objective of the invention is to provide a soil pulverizer in which a rotary grinding action is produced by the drawing of the apparatus across the soil" (lines 10-13).
Date: May 19, 1914
Creator: Kramer, Frank.
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