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Underreamer.

Description: Patent for a strengthened and improved underreamer for more effective well drilling.
Date: February 15, 1921
Creator: Montgomery, Gustavus A.
Partner: UNT Libraries Government Documents Department

Surface-Treating Machine.

Description: Patent for a surface treating machine that improves support, where the surface treating member is "driven by intermediate means from a motor displaced from the member, together with means of effecting adjustments of the surface treating member with relation to the work" (lines 13-15), with illustrations.
Date: October 19, 1920
Creator: Clarke, Alex A.
Partner: UNT Libraries Government Documents Department

Well-Tubing Catcher

Description: Patent for an improved well tubing catcher, which "provides an equal and positive bearing surface for the gripper slips or dogs in all their adjusted positions" (lines 16-18), including illustrations.
Date: April 12, 1921
Creator: Wilson, Robert A.
Partner: UNT Libraries Government Documents Department

Folding Landing-Gear for Aircraft.

Description: Patent for improvement in folding landing-gears for an aircraft. Once the aircraft is at the sustention in the air, the wheels and attendant parts will fold up into the aircraft.
Date: February 3, 1920
Creator: McCarroll, Frank
Partner: UNT Libraries Government Documents Department

Prepay Time-Controlled-Service Apparatus.

Description: Patent for an improvement in prepay time controlled service apparatus that uses the solenoid and armature as a stopping means for the time mechanism.
Date: May 11, 1920
Creator: Thompson, William H. & Thompson, J. D.
Partner: UNT Libraries Government Documents Department

Oiling System

Description: Patent for an oiling system that efficiently transports oil to the surface to be lubricated, and then returned to the reservoir.
Date: November 2, 1920
Creator: Reaugh, Frank
Partner: UNT Libraries Government Documents Department

Arrangement and Construction of Self-Service-Store Fixtures

Description: Patent for new and useful improvements in arrangement and construction of self-service-store fixtures. This invention provides an arrangement of shelving in sections with other parts of store furnture, the shelving being so arranged and constructed that all available space is economically utilized and at the same time permits the goods displayed on the shelves to be visible from a designated point in the store to avoid surreptitious removal of any goods while providing ample room for customers … more
Date: October 4, 1921
Creator: Hill, Leslie A.
Partner: UNT Libraries Government Documents Department

Apparatus for Separating Substances of Different Dielectric Capacities.

Description: Patent for an apparatus for separating substances of different dielectric capacities; the objective of this invention is to provide means for the material to be separated into its component particles for the purpose of producing material of dielectric hysteric impedance and collecting the separated particles according to the difference in time that the particles maintain their polarity due to the impedance generated from them.
Date: August 2, 1921
Creator: Sutton, Henry M.; Steele, Walter L. & Steele, Edwin G.
Partner: UNT Libraries Government Documents Department

Game-Board.

Description: Patent for a game board that includes barriers, inclines, and depressions in the board which is meant to simulate a game similar to baseball (as well as other games) using a cue ball. The game board also comes with auxiliary barriers to adjust gameplay.
Date: July 12, 1921
Creator: Sterling, Don L.
Partner: UNT Libraries Government Documents Department

Pneumatic Pump.

Description: Patent for pumps for oil and water wells that can be operated by compressed air to force the water or oil out of the well.
Date: June 29, 1920
Creator: Goss, George W.
Partner: UNT Libraries Government Documents Department

Railroad Signal

Description: Patent for automatic railroad signals that emit sound and lights.
Date: December 28, 1920
Creator: Harrell, William H.
Partner: UNT Libraries Government Documents Department

Surface-Treating Machine

Description: Patent for a machine that treats surfaces. Illustration is included.
Date: October 19, 1920
Creator: Clarke, Alex A.
Partner: UNT Libraries Government Documents Department

Book-Support and Writing-Table.

Description: Patent for book support and writing table that adjusts to the item being used by the person. The tray is able to hold the item either a book or writing materials while adjusting to the user's needs. The book support and writing table can be folded to occupy little space.
Date: May 10, 1921
Creator: Taylor, Henry S.
Partner: UNT Libraries Government Documents Department

Automobile-Rack.

Description: Patent for improved automobile racks that are elevated to accomplish the following tasks: removing paint from the automobile, and make the automobile more accessible during construction.
Date: February 10, 1920
Creator: Cleveland, David P.
Partner: UNT Libraries Government Documents Department

Hulling-Machine

Description: Patent for hulling nuts of all sizes including peanuts. A hopper feeds the nuts in to rollers and the shells fall out the bottom while the nuts go down a chute to be collected.
Date: March 30, 1920
Creator: Sparks, James N.
Partner: UNT Libraries Government Documents Department

Surface-Treating Device.

Description: Patent for surface treating devices that provides "a continuously moving surface treating member and support the same in such a manner that its application to the work may be adjusted to a minute degree and controlled by the operator while the device is in operation." (lines 11-16)
Date: September 14, 1920
Creator: Clarke, Alex A.
Partner: UNT Libraries Government Documents Department

Street-Directory.

Description: Patent for business guide and street directory to help identify locations of business houses, streets, and street numbers more quickly and effectively.
Date: August 2, 1921
Creator: Marshall, Fred N.
Partner: UNT Libraries Government Documents Department

Poultry-Killer.

Description: Patent for a new poultry killing device which is inexpensive and easy to use by anyone to kill poultry quickly and painlessly with or without decapitation. Design shape ensures that the poultry cannot twist their way out of the device.
Date: October 26, 1920
Creator: Rece, Frank S.
Partner: UNT Libraries Government Documents Department

Liquid or Gaseous Fuel Burning Furnace.

Description: Patent for a furnace that can be powered either by gas or liquid fuel. Designed specifically for improved insulation and fuel efficiency.
Date: March 1, 1921
Creator: Hoover, Orvill Lockwood Mead
Partner: UNT Libraries Government Documents Department

Peanut-Harvester

Description: Patent for a peanut harvester which can be attached to a standard cultivator frame. It is designed to uproot and sever peanut vines, then deposit the newly aerated peanut vines back onto the ground.
Date: June 29, 1920
Creator: Byrd, Gordon W.
Partner: UNT Libraries Government Documents Department

Cotton-Cleaner and Boll-Breaker.

Description: Patent for cotton cleaning and boll-breaking apparatus that simplifies assembling, disassembling, and adjusting parts. The apparatus uses a suction that feeds the material into the rotating blades for cleaning. Special features include removable screen frames, refuse collecting pockets, and replaceable blades.
Date: November 15, 1921
Creator: Stacy, Grover C.
Partner: UNT Libraries Government Documents Department

Embroidery-Needle.

Description: Patent for an embroidery needle that is simplified version for easy use and avoid complications. The embroidery needle has a better grip for the user.
Date: March 15, 1921
Creator: Pade, George V. & Neitzel, Conrad T.
Partner: UNT Libraries Government Documents Department

Riveting-Machine and the Art of Riveting.

Description: Patent for improving riveting machines "used in the manufacture of leather and similar goods" (lines 12-13) such that "during the riveting operation the end of the rivet is spun and cut off to hold the bur or washer to its work" (lines 16-19).
Date: October 12, 1920
Creator: Shaw, Fred H.
Partner: UNT Libraries Government Documents Department

Counterbalancing and Adjustable Sash for Windows.

Description: Patent for window sashes made of two separate sections, one for the upper portion and the other for the lower portion of a window. Each sash section can be operated independently from the other by mechanisms on the right and left side of the window.
Date: February 7, 1922
Creator: Peaden, William H.
Partner: UNT Libraries Government Documents Department
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