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Portable Apparatus for the Measurement of Environmental Radon and Thoron (open access)

Portable Apparatus for the Measurement of Environmental Radon and Thoron

The radometer is a portable instrument for the measurement of the concentration of atmospheric radon/thoron in a test area. A constant velocity pump pulls the air from the outside at a constant flow rate. If the air is too moist, some or all of the sample is passed through a desiccant filter prior to encountering an electrostatic filter. The electrostatic filter prevents any charged particles from entering the sampling chamber. Once the sample has entered the chamber, the progeny of the decay of radon/thoron are collected on a detector and measured. The measured data is compiled by a computer and displayed.
Date: August 19, 1999
Creator: Negro, Vincent
System: The UNT Digital Library
Boring-tool. (open access)

Boring-tool.

Patent for a device "designed particularly for boring out cylinders of internal combustion engines" (lines 12–13), includes illustrations.
Date: August 19, 1919
Creator: Dedman, Henry W.
System: The Portal to Texas History
Deep-Well Pump. (open access)

Deep-Well Pump.

Patent for "new and useful Improvements in Deep-Well Pumps," (lines 5-6), including illustrations. An improvement on the inventor's previous patent (1013579), with the intention of preventing and removing sand accumulation while pumping oil.
Date: August 19, 1919
Creator: Andrews, Benjamin
System: The Portal to Texas History
Derrick. (open access)

Derrick.

Patent for improvements to derricks, specifically those used on the decks of ships and other vessels, to prevent the structure from becoming entangled with fall ropes or cables during operation.
Date: August 19, 1919
Creator: Scanlan, Thomas J.
System: The Portal to Texas History
Mechanical Device for Concentrating Vision. (open access)

Mechanical Device for Concentrating Vision.

Patent for an optical device proposed to replace lenses and goggles. Instead of lenses, this device has circular shutters (much like a camera) that forces direct vision and eliminates peripheral vision for concentration and focus.
Date: August 19, 1919
Creator: Compere, Dolphus E.
System: The Portal to Texas History
Scoop. (open access)

Scoop.

Patent for a ridable shovel with wheels that allows the user to control digging and dumping of scooped loads by footrest operation.
Date: August 19, 1919
Creator: Mitcham, James L.
System: The Portal to Texas History
Vehicle-Indicator (open access)

Vehicle-Indicator

Patent for a vehicle-indicator that is designed for use on vehicles such as automobiles, to indicate the movement of the vehicle. Other objects of this include that it alerts those around of the intended movement of the vehicle being driven.
Date: August 19, 1919
Creator: McManus, Lewis R.
System: The Portal to Texas History
Bale-Tie Buckle. (open access)

Bale-Tie Buckle.

Patent for a new bale tie buckle made of wire material "in which the buckle is closed by the strain or stress on the bale tie" (lines 11-14), including illustrations.
Date: August 19, 1913
Creator: Frantz, Ezra A.
System: The Portal to Texas History
Coin-Sorter. (open access)

Coin-Sorter.

Patent for a coin sorter that sorts coins according to their dimensions and places in a receptacle with removable bottom cover to collect the sorted coins.
Date: August 19, 1913
Creator: Haynie, Brooks & Parmele, James J.
System: The Portal to Texas History
Construction of Railroad-Beds. (open access)

Construction of Railroad-Beds.

Patent for a railroad-bed design that is used to support railroad tracks.
Date: August 19, 1913
Creator: Alley, William W.
System: The Portal to Texas History
Cotton Chopper (open access)

Cotton Chopper

Patent for improved Cotton-Chopper, with illusrations and description.
Date: August 19, 1913
Creator: Clayton, John W.
System: The Portal to Texas History
Cow-Yoke. (open access)

Cow-Yoke.

Patent for a cow-yoke "comprising a yoke formed in sections pivoted one to the other" with spurs included (inwardly) at the ends of these pivoted sections to "prevent the animal from poking his head through a wire fence".
Date: August 19, 1913
Creator: Parker, Abbot S.
System: The Portal to Texas History
Driving Mechanism for Tractors (open access)

Driving Mechanism for Tractors

Patent for an invention relating to the engines of tractors that provides "improved transmission gearing for controlling the movements of the machine." (lines 17-18)
Date: August 19, 1913
Creator: Ingram, Joseph D.
System: The Portal to Texas History
Flying-Machine (open access)

Flying-Machine

Patent for a flying machine that is designed to have a lower center of gravity to facilitate more stable operation.
Date: August 19, 1913
Creator: Bell, Frank M.
System: The Portal to Texas History
Fruit-Cutter and Juice-Extractor. (open access)

Fruit-Cutter and Juice-Extractor.

Patent for "new and useful Improvements Fruit-Cutters and Juice-Extractors" (Lines 6-7), including instructions and illustrations.
Date: August 19, 1913
Creator: Cooper, James A.
System: The Portal to Texas History
Motor-Driven Table (open access)

Motor-Driven Table

Patent for "improvements in rotatable tables, such as are employed for the display of goods and for general serving purposes in hotels, restaurants and other places" (lines 12-16) including illustrations and instructions.
Date: August 19, 1913
Creator: Goodrich, Luman L., Jr.
System: The Portal to Texas History
Poultry House and Pen. (open access)

Poultry House and Pen.

Patent for Improved Poultry House and Pen, with adjustable height runway.
Date: August 19, 1913
Creator: Laidlaw, Peter B.
System: The Portal to Texas History
Seed-Cotton-Hull Extractor. (open access)

Seed-Cotton-Hull Extractor.

Patent is for machine to remove the hull from seeded cotton. Machine uses air or suction drafts to hold cotton for extraction and remove waste.
Date: August 19, 1913
Creator: Stephens, Louis K.
System: The Portal to Texas History
Wheel-Bearing. (open access)

Wheel-Bearing.

Patent for a wheel-bearing that reduces friction between the wheel and axle, prevents dust from going inside the bearing, and keeps the bearing wheels in place at the bore of the wheel. The wheel bearing consists of a few parts that can be easily assembled and would rarely need to be repaired. The patent includes illustrations.
Date: August 19, 1913
Creator: Manley, Earl W.
System: The Portal to Texas History
Can Opener (open access)

Can Opener

Patent for can-opener which uses a fulcrum point that pierces the center of the can's lid and a circular blade to cut an opening around the circumference.
Date: August 19, 1902
Creator: Pierce, Jesse Washington
System: The Portal to Texas History
Cotton-Gin. (open access)

Cotton-Gin.

Patent for a cotton gin that has a large ginning capacity (similar to saw types of gins) and also preserves the fiber (similar to roller types of gins).
Date: August 19, 1902
Creator: Fuller, James T.
System: The Portal to Texas History
Grave Filler. (open access)

Grave Filler.

Patent for a grave-filling machine, which transports dirt into the hole of the grave.
Date: August 19, 1902
Creator: Deering, Uriah H.
System: The Portal to Texas History
Non-Refillable Bottle. (open access)

Non-Refillable Bottle.

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
System: The Portal to Texas History
Stock Tank (open access)

Stock Tank

Patent for an improved water tank for livestock, connecting an elevated reservoir to a trough at ground level.
Date: August 19, 1902
Creator: Wright, Wayne C.
System: The Portal to Texas History