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Trolley-Pole Head.

Description: Patent for improvements in trolley-pole heads in which a good contact may established at all time between the wheel and the trolley-wire. Illustration is included.
Date: May 17, 1904
Creator: Dunn, Robert I. E.
Partner: UNT Libraries Government Documents Department

Mechanical Attachment for Pianos and Organs

Description: Patent for a "mechanical attachment for pianos and organs whereby and musical composition executed upon the instrument shall be automatically recorded upon a travelling strip or band or, if preferred, on the cylindrical surface of a revolving drum" (lines 10-15).
Date: May 31, 1892
Creator: Harriman, John Emery, Jr.
Partner: UNT Libraries Government Documents Department

Improvement in Clod-Crushers.

Description: Patent for a land-drag and clod-crusher that will effectually crush the clods, level the land, and pack the soil, at one and the same operation.
Date: May 16, 1876
Creator: Crockett, John M.
Partner: UNT Libraries Government Documents Department

Process of Roasting Ores.

Description: Patent for a process for roasting ores "wherein the ore is conveyed by an air-blast to and through a roasting-chamber" (lines 12-14), including illustrations.
Date: May 26, 1903
Creator: Sutton, Henry M.; Steele, Walter L. & Steele, Edwin G.
Partner: UNT Libraries Government Documents Department

Steam Engine

Description: Patent for an improved steam engine design.
Date: May 27, 1919
Creator: Edwards, James L.
Partner: UNT Libraries Government Documents Department

Spark Arrester.

Description: Patent for a new and improved spark-arrester. This design consists in "[t]he combination of an inverted-U-shaped pipe joined to the smoke-stack of an engine, a suitable damper located at the junction, a water receptacle suspended from the free end of said pipe, and a water-pipe leading into said end from the boiler of the engine" (lines 85-90).
Date: May 4, 1886
Creator: Ledbetter, William Hughes
Partner: UNT Libraries Government Documents Department

Pneumatic Apparatus for Handling Seed-Cotton.

Description: Patent for a machine that removes cotton from a "wagon or other vehicle" (line 11), and moving it to a storage facility. It also moves the cotton from the storage facility and into the cotton gin. The cotton is elevated during movement via suction.
Date: May 11, 1897
Creator: Murray, Stephen D.
Partner: UNT Libraries Government Documents Department

Primary Battery.

Description: Patent for a simplified primary battery "whereby the parts thereof may be readily removed and replaced without special tools by unprofessional persons, while at the same time providing a construction of primary battery involving new and useful connections for the positive and negative elements thereof." (Lines 10-16) Includes instructions and illustrations.
Date: May 25, 1897
Creator: Sutton, Henry M. & Steele, Walter L.
Partner: UNT Libraries Government Documents Department

Planting Mechanism.

Description: Patent for a hopper that attaches to a planter that allows different types and sizes of seed to be dropped from it. Especially targeted toward corn and cotton seed.
Date: May 21, 1907
Creator: Hodge, Neely B.
Partner: UNT Libraries Government Documents Department

Process of Producing Tire-Patch Material.

Description: Patent for an improved tire patch material combination and production process, which results in less water absorption and better adhesion to the tire.
Date: May 11, 1920
Creator: Duffy, Clarence O.
Partner: UNT Libraries Government Documents Department

Measuring Device

Description: Patent for improvements to the measuring device used to ascertain the depth of a well.
Date: May 23, 1922
Creator: Bevel, Jack H.
Partner: UNT Libraries Government Documents Department

Grave-Marker.

Description: Patent for a new and useful Grave-Marker. The body of the improved grave marker or cradle is elongated or somewhat elliptical in contour, and its central portion is open, in order that the grave marker or cradle may surround a grave.
Date: May 5, 1914
Creator: Kimball, Herbert E
Partner: UNT Libraries Government Documents Department

Timing Mechanism for Automatic Oil Pumping Systems.

Description: Patent for a timing mechanism for automatic oil-pumping systems, which adds improvements to a previous patent (Serial No.788,483). This patent includes a "novel mechanism for controlling the alternate action of a pressure and vacuum directed into a well" from the surface instead of the lower portion of the well (lines 33-35). Patent includes illustrations and instructions.
Date: May 9, 1916
Creator: Stephenson, William M.
Partner: UNT Libraries Government Documents Department

Multiple Cylinder Hydrocarbon Engine

Description: Patent for a multiple cylinder hydrocarbon engine. Illustrations included.
Date: May 3, 1904
Creator: Russell, Edwin L.
Partner: UNT Libraries Government Documents Department

Oil-Stove

Description: Patent for improvements in oil burner stoves.Pertains more to oil stoves with movable burners so that the flame intensity can be adjusted or extinguished.
Date: May 10, 1921
Creator: Cook, Thomas Edward
Partner: UNT Libraries Government Documents Department

Tandem-Roller Attachment.

Description: Patent for improved, simply constructed, and high-efficiency tandem roller attachments with the purpose of, "preventing surface waving of roadways," (lines 18-19) including illustrations.
Date: May 14, 1918
Creator: Brown, Frank O.
Partner: UNT Libraries Government Documents Department

Time-Signal for Telephones

Description: Patent for standard time-signaling instruments and consists of "an instrument for and a manner of signaling standard time through an entire system or systems of telephones."(lines 10-14) including instructions and illustrations.
Date: May 29, 1882
Creator: Oram, John M.
Partner: UNT Libraries Government Documents Department

Fare-Box

Description: Patent for new and useful improvements in electrical fare boxes.
Date: May 15, 1888
Creator: Crowdus, Walter A.
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

Handle Bar

Description: Patent for a bicycle handlebar
Date: May 18, 1915
Creator: Cortines, Ernest J.
Partner: UNT Libraries Government Documents Department

Mattress

Description: Patent for a mattress made with folded layers of material, such as cotton or wool, where the fibers are placed in a vertical position.
Date: May 16, 1911
Creator: Heermans, Wallace T.
Partner: UNT Libraries Government Documents Department

Method and Apparatus for Generating Motive Fluid

Description: Patent for improvement in methods and apparatus for generating motive fluid "to provide a source of combustion" and dispose of it outside the generator to generate steam (lines 11-12).
Date: May 1, 1917
Creator: Reordan, Charles, E.
Partner: UNT Libraries Government Documents Department

Overalls.

Description: Patent for a type of overalls where the jumper is elevated from the seat. The jumper is elevated from the jumper to prevent rain and other substances from saturating the seat. The jumper can also be removed from the seat by unfastening a concealed button hole band.
Date: May 25, 1920
Creator: Godchaux, Herbert
Partner: UNT Libraries Government Documents Department

Pneumatic Tire

Description: Patent for pneumatic tires. Illustration included.
Date: May 3, 1910
Creator: Dazey, Harry L.
Partner: UNT Libraries Government Documents Department
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