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Well Screen.

Description: Patent for a well screen device. The device can keep particulates out of the well water while also restricting water to flow into the well without being released back into the soil.
Date: February 1, 1921
Creator: McLean, Marrs
Partner: UNT Libraries Government Documents Department

Method of Casting Chilled Valve-Seats

Description: Patent for making moldings of seats to be more consistent.
Date: March 11, 1919
Creator: Boykin, Burwell, Jr.
Partner: UNT Libraries Government Documents Department

Well-Bailing Apparatus

Description: Patent for specifications of Well Bailing Apparatus.
Date: August 27, 1907
Creator: Carroll, Monroe W.
Partner: UNT Libraries Government Documents Department

Valve

Description: Patent for a valve. Illustration included.
Date: August 17, 1909
Creator: Smith, Frederick C.
Partner: UNT Libraries Government Documents Department

Ice Hook

Description: Patent for an ice hook.
Date: May 3, 1904
Creator: Ball, Thomas J.
Partner: UNT Libraries Government Documents Department

Pipe Coupling.

Description: Patent for pipe coupling in which the ends of pipes have interlocking attachments which can be both dissembled and reinforced for protection against accidental disengagement.
Date: August 17, 1920
Creator: McCullar, Willie A. & Ayraud, Jules J.
Partner: UNT Libraries Government Documents Department

Improvement In Percussion-Shells.

Description: This patent was created for individuals to be able to hit an object with the instrument and the oject immediately explodes on impact. It then produces an excessive amount of explosions. The invention is made out of shells with sections assembled together infused with different substances, and connected by a fuse.
Date: April 9, 1878
Creator: Urquhart, John M.
Partner: UNT Libraries Government Documents Department

Still for Distillation of Petroleum

Description: Patent for improvements in still design for distillation of petroleum or its products, providing relief for any suddenly formed vapors and preventing the oil from boiling over.
Date: July 24, 1917
Creator: Gallsworthy, Benjamin
Partner: UNT Libraries Government Documents Department

Still.

Description: Patent for a still designed to refine crude petroleum and extract lighter elements, including illustrations.
Date: February 11, 1919
Creator: Gallsworthy, Benjamin
Partner: UNT Libraries Government Documents Department

Non-Refillable Bottle.

Description: Patent for improvements to non-refillable bottles to prevent tampering and/or re-filling of container with alternate substance. Item is designed to be used on any ordinary bottle.
Date: August 19, 1902
Creator: Allen, Edward
Partner: UNT Libraries Government Documents Department

Heater

Description: Patent for a new and useful heater design "particularly for heating the water in the circulating system of internal combustion engines, such as are used in automobiles" (lines 10-12). Illustrations are included.
Date: June 6, 1916
Creator: Smith, Frederick C.
Partner: UNT Libraries Government Documents Department

Feed-Trough.

Description: Patent for improvements in feed-troughs in which a controlled amount of feed can be placed in a feed box, and in which the latter will be fed as rapidly as consumed and the unconsumed feed will be protected. (Lines 11-14) Illustration in included.
Date: September 8, 1891
Creator: Webb, William James
Partner: UNT Libraries Government Documents Department

Combined Harrow and Roller

Description: Patent for a combined harrow and roller for pulverizing and eliminating unwanted growth from the ground. Illustrations included.
Date: April 9, 1912
Creator: Younger, Walter E.
Partner: UNT Libraries Government Documents Department

Hydraulic-Drill

Description: Patent for an improved hydraulic drill to penetrate and bore holes into earth, clay and similar materials, including illustrations.
Date: August 11, 1903
Creator: Higgins, Pattillo
Partner: UNT Libraries Government Documents Department

Improvement in Windmills

Description: Patent for the improvement of wind mills, that includes a detailed description as well as labeled figure drawings.
Date: May 20, 1873
Creator: Jackson, Thomas R.
Partner: UNT Libraries Government Documents Department

Pan Lifter and Turner.

Description: Patent for a pan lifter and turner using a bent handle, a curved plate is secured at the end of the bent handle; extending upward from the curved plate with a series of teeth to engages the crimped rim of a pan for lifting. At both ends of the curved plate provided with curved notches or recesses to receive and engage the rim of a pan for turning. Illustration is included.
Date: February 10, 1891
Creator: Ericson, John
Partner: UNT Libraries Government Documents Department

Pocket-Closure

Description: Patent for a pocket closure. Illustrations included
Date: June 29, 1909
Creator: Wilkinson, John W.
Partner: UNT Libraries Government Documents Department

Utilization of Aluminum-Chlorid Residues.

Description: Patent for "new and useful Improvements in the Utilization of Aluminum Chlorid Residues" (lines 6-7) including instructions and illustrations.
Date: February 24, 1920
Creator: Abbott, Lyle Stockton
Partner: UNT Libraries Government Documents Department

Non-Refillable Bottle.

Description: Patent for a non-refillable bottle with a valve in the neck that opens to let the contents be poured out of the bottle but seals itself if liquid is poured back in the bottle.
Date: April 25, 1911
Creator: Sargent, William H.
Partner: UNT Libraries Government Documents Department

Sectional Dam and Flume

Description: Patent for a sectional dam and flume for small waterways that takes the water to a turbine.
Date: February 4, 1913
Creator: Holmes, Clayton F.
Partner: UNT Libraries Government Documents Department

Trace-Fastener

Description: Patent for a trace fastener for whippletrees. This is a device that "provide[s] a simple, efficient, reliable fastener which will when in use, at all times and under all circumstances, hold the trace in connection with the end of the whiffletree [sic] and which will prevent undue wear on the cockeye or hole in the end of the trace." (Lines 9-16)
Date: April 2, 1901
Creator: Nichols, Charlie M. & Burnett, Charles M.
Partner: UNT Libraries Government Documents Department

Nut-Lock.

Description: Patent for a nut-lock that holds the nut more securely in place than previous ones. Used primarily in railroad joints, but can be used in a variety of other applications.
Date: February 19, 1907
Creator: Baldwin, John H.
Partner: UNT Libraries Government Documents Department

Improvement in Jack-Screws and Clamps Combined.

Description: Patent for an invention "to combine a jack-screw or lifting-jack with a clamp, so that they may be interchangeably used." (Lines 19-21) Includes instructions and illustrations.
Date: May 20, 1873
Creator: Jackson, Thomas R.; Jackson, Asberry C. & Watson, Claudius S.
Partner: UNT Libraries Government Documents Department
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