UNT Libraries Government Documents Department - 80 Matching Results

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Hanging Millstones.

Description: Patent for improvement of hanging millstones using a driver to hang the runner of a pair of millstones, “as it rotates, adjust itself to the position of the stationary stone, and the parallelism of the faces of the two stones be preserved whether the stationary one be perfectly horizontal or not” (lines 19-24), including illustration.
Date: May 29, 1860
Creator: Dance, G. P.

Hoisting Drum

Description: Patent for improvements to hoisting drums for use in drilling oil, gas, and water wells, with the object being "to employ a plurality of hoisting drums upon the same shaft so that the cable may be wound partly on one drum and partly on another" (lines 73-76) such that the danger of cable cutting is decreased and the speed of operation is increased, including illustrations.
Date: May 2, 1922
Creator: Suman, John R. & Gamble, Adrian R.

Hunting-Knife.

Description: Patent for a new and useful improvement in hunting knives, including instructions and illustrations.
Date: September 5, 1899
Creator: Shelton, William J.

Improvement in Bee-Hives.

Description: Patent for a bee-hive that prevents insects (such as moths) from entering therein and maximizes the amount of honey collected from the hive, including a detailed explanation and description of the illustration.
Date: March 5, 1878
Creator: Park, Jesse W.

Improvement in Car-Axle Bearings.

Description: Patent for improvement in car-axle bearings in which "it consists in a box having a chambered back for containing oil, and having grooves along the straight edges of its bearing-surface for receiving a wick, the ends of which extend through holes in the box into the oil reservoir.”
Date: December 3, 1878
Creator: Stratton, Asa E., Jr.

Improvement in Cotton-Scrapers.

Description: Patent for the improvement of a cotton scraper "for general cultivation of drill-husbandry" (lines 17-18) and cotton crops, including illustration.
Date: February 19, 1861
Creator: Shepard, Josiah

Improvement in Cotton-Seed Planters.

Description: Patent for an improvement in cotton-seed planters using a combination of an adjustable agitator and a movable self-adjusting stirrer, including illustration.
Date: April 3, 1860
Creator: Sweeny, Samuel P.

Improvement in Medical Compounds or Bitters.

Description: Patent for a medical compound prepared with whisky, gentian-root, cinchonabark, quassia and cloves which is intended as "a remedy for miasmatic fevers" (line 23) including instructions for the preparation and administration of the medicine.
Date: January 23, 1872
Creator: Turner, Richard G.

Improvement in Processes of Preserving Meats.

Description: Patent for a method of preserving and canning meat. This describes the inventor's process, as well as his method of reducing air inside the container using hypophosphite of lime.
Date: January 11, 1876
Creator: Stevens, Hennell

Improvement in Propelling Vessels.

Description: Patent for a hydraulic propeller that uses a current of water and steam power, including illustrations.
Date: August 26, 1846
Creator: Fulton, George W.

Improvement in Screw-Propulsion.

Description: Patent for "a new and useful Improvement in Screw-Propellers and their adaptation to the hulls of vessels" (lines 4-6) including illustrations.
Date: November 9, 1875
Creator: Wilson, Joseph Erwin

Improvement in Seeding-Machines.

Description: Patent for the improvement of seed-planters using a rotary system to distribute seeds from a drum and into the soil, including illustration.
Date: September 4, 1860
Creator: Park, A. R.

Improvement in Soldering-Irons

Description: Patent for a new and improved soldering iron, which only gives off so much heat from one end and not the other. This patent of the soldering iron a safer tool to work with.
Date: March 21, 1877
Creator: Stevens, Hennell

Improvement in Vehicle Axle-Lubricators

Description: Patent for improvements to the design of axle lubricators, in which the oil reservoir is in the rear as opposed to the front.
Date: October 14, 1879
Creator: Hinkle, James V.

Improvements in Oil-Burners

Description: Patent for improvements to oil-burners. The text contains a description of the unique improvements and is accompanied by explanatory illustrations.
Date: August 21, 1917
Creator: Harrington, Edward A

Insecticide

Description: Patent for an insecticide specifically for insects that burrow into the shucks of corn. "The general object of my invention is to provide a compound capable, when affected by moisture incidental to the sweating of the corn in the crib, of generating a poisonous gas which will permeate the shucks and reach and destroy the insect within the shucks, where it cannot be destroyed by simply sprinkling the corn with a poisonous powder or solution" (lines 17-25).
Date: September 13, 1892
Creator: Carter, Joseph John

Life-Boat.

Description: Patent for an improved life boat that "consists principally of a central closed hull equipped with propelling machinery, and floats extending on the sides of the said hull and rigidly secured thereto, to support the hull in position." (Lines 12-16) Includes instructions and illustrations.
Date: September 1, 1896
Creator: James, William F.

Means for Reducing Wear in the Working Barrels of Pumps

Description: Patent for a means of reducing wear in the working barrels of pumps. The pumps made in this wat are specially adapted for operations in water or oil wells where the fluid being pumped is is mixed with sand and sediment.
Date: March 4, 1919
Creator: Carmichael, Robert E.
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