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Internal Combustion Engine

Description: Patent for a improved Internal Combustion Engine. The improvement is the construction of the ignition of the internal combustion engine where the fuel in the compression chamber is ignited explosion of a different fuel of a more highly explosive nature.
Date: August 9, 1921
Creator: Simpson, Joseph Ryan.
Partner: UNT Libraries Government Documents Department

Well-Drilling Bit.

Description: Patent for a well drilling bit with a removable point and cutting edges "at a greater radial distance from the center of the bit" (lines 18-19). The point may be removed for sharpening or replacement.
Date: August 16, 1921
Creator: Midgett, Penelton G.
Partner: UNT Libraries Government Documents Department

Price-Tag Holder.

Description: Patent for "an improvement in price tag holders" (lines 9-10) such that the price tag holder is connected to a garment hanger, including one illustration.
Date: August 30, 1921
Creator: Newton, Andre Hutt
Partner: UNT Libraries Government Documents Department

Tool-Joint

Description: Patent for tool joints to be used in detachable connection between lengths of pipe. Specifically used with drill pipe for drilling deep wells for oil, gas, or water.
Date: August 2, 1921
Creator: Thomas, Avery H.
Partner: UNT Libraries Government Documents Department

Plaiting Device.

Description: Patent for an improved plaiting device that simplifies the steaming and pressing of dress goods.
Date: August 2, 1921
Creator: Knaur, Laura L.
Partner: UNT Libraries Government Documents Department

Harrow

Description: Patent for new and useful improvements in Harrows or cultivators that can be set to any height and any degree.
Date: August 9, 1921
Creator: McConal, Wiliam
Partner: UNT Libraries Government Documents Department

Rotary Well-Drilling Machine

Description: Patent for a rotary well-drilling machine that makes use of an "independently rotatable section" to aid in the screwing and unscrewing of pipe sections.
Date: August 9, 1921
Creator: Taylor, William Henry
Partner: UNT Libraries Government Documents Department

Vehicle-Wheel

Description: Patent for improving vehicular tires by making them more durable for heavier vehicular use.
Date: August 30, 1921
Creator: Allan, William N.
Partner: UNT Libraries Government Documents Department

Puzzle.

Description: Patent for a puzzle made of interlocking blocks that are attached by a cord through holes in the blocks, that, when fully assembled, forms the shape of a Chinese cross.
Date: August 23, 1921
Creator: Hime, Clint T.
Partner: UNT Libraries Government Documents Department

Poultry-Crate.

Description: Patent for an improved version of the Poultry-Crate, including illustrations. This version was designed with efficiency in mind, devised to be an inexpensive and highly portable invention.
Date: August 30, 1921
Creator: Tucker, William
Partner: UNT Libraries Government Documents Department

Process of Treating Wood.

Description: Patent for less expensive chemical wood treatment that will not leach out, will make wood more durable, and preserve wood for multiple uses including marine construction.
Date: August 23, 1921
Creator: Chandler, Asa C. (Asa Crawford), 1891-1958
Partner: UNT Libraries Government Documents Department

Filing Cabinet

Description: Patent for filing cabinet designed to accommodate blue prints and large papers.
Date: August 30, 1921
Creator: Southwell, Charles R.
Partner: UNT Libraries Government Documents Department

Cultivating-Hoe.

Description: Patent for cultivating hoe in which operating segment is adapted to be multifaceted and prevent becoming dull.
Date: August 9, 1921
Creator: Church, Ralph D.
Partner: UNT Libraries Government Documents Department

Attachment for T-Stands

Description: Patent for improvement of T stands, which includes a vertical rod that makes attachment and removal easier.
Date: August 2, 1921
Creator: Adamson, John Selden
Partner: UNT Libraries Government Documents Department

Bandage

Description: Patent for a bandage made of elastic material which includes a flap that can be fastened, or unfastened, and which acts as a holder for an absorbent material that can be replaced.
Date: August 9, 1921
Creator: Kirwan, Leah M.
Partner: UNT Libraries Government Documents Department

Bee-Shipping Cage

Description: Patent for transferring bees to a different hive without injury and preventing bees from escaping. The bee-cage offers different ways to transfer the bees.
Date: August 16, 1921
Creator: Ault, Eugene B.
Partner: UNT Libraries Government Documents Department

Automobile-Signal.

Description: Patent for a visual indicator signal for motor vehicles.
Date: August 9, 1921
Creator: Cobb, Albert C.
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

Door Attachment.

Description: Patent for a weather strip attachment for doors which would automatically extend from the bottom of the door to the floor when the door is in the closed position and retract to the bottom edge of the door when the door is opened.
Date: August 2, 1921
Creator: Swenson, Frank O.
Partner: UNT Libraries Government Documents Department

Boll-Weevil Catcher

Description: Patent for a Boll-Weevil Catcher. This inventions allows for an attachment to cultivators to catch weevils existing on growing cotton plants. The weevils are extracted, captured in a pan, and can be disposed of. This is an important tool that catches and destroys insects without damaging the plants.
Date: August 2, 1921
Creator: Hitt, Reed R.
Partner: UNT Libraries Government Documents Department

Attachment for Tractors.

Description: Patent for attachments in tractors. "This invention relates to tractors and has for its object the provision of means where by when the front axle and wheels of the tractor rise caused by rearing of the tractor, the clutch will be automatically disconnected and remain so until the front wheels of the tractor descend again into engagement with the ground. An important and more specific object is the provision in a tractor of a front axle formed n sections pivotally connected, one section being c… more
Date: August 30, 1921
Creator: Cholick, Joseph John
Partner: UNT Libraries Government Documents Department

Door-Hook.

Description: Patent for a low-cost door hook designed for securing screen doors in a closed position which may be operated from either side of the door.
Date: August 30, 1921
Creator: Randazzo, Lillian
Partner: UNT Libraries Government Documents Department

Dirigible Headlight

Description: Patent for improving headlights for automobiles and other vehicles. Improvements include simpler, yet effective, connectivity between the head lamps and the steering mechanism.
Date: August 30, 1921
Creator: Davis, Robert E.
Partner: UNT Libraries Government Documents Department

Ditch-Filling Machine

Description: Patent for a Ditch-Filling Machine, focusing on improved operational efficiency and cost-effectiveness. The upgraded machine boasts user-friendly features, making it easily operable, while simultaneously reducing production costs in comparison to its predecessor.
Date: August 9, 1921
Creator: Witt, William C.
Partner: UNT Libraries Government Documents Department
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