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Head assembly for multiposition borehole extensometer (open access)

Head assembly for multiposition borehole extensometer

A head assembly for a borehole extensometer and an improved extensometer for measuring subsurface subsidence. A plurality of inflatable anchors provide discrete measurement points. A metering rod is fixed to each of the anchors which are displaced when subsidence occurs, thereby translating the attached rod. The head assembly includes a sprocket wheel rotatably mounted on a standpipe and engaged by a chain which is connected at one end to the metering rod and at the other end to a counterweight. A second sprocket wheel connected to the standpipe also engages the chain and drives a connected potentiometer. The head assembly converts the linear displacement of the metering rod to the rotary motion of the second sprocket wheel, which is measured by the potentiometer, producing a continuous electrical output.
Date: June 9, 1981
Creator: Frank, D.N.
System: The UNT Digital Library
Method of electrode fabrication and an electrode for metal chloride battery (open access)

Method of electrode fabrication and an electrode for metal chloride battery

A method of fabricating an electrode for use in a metal chloride battery and an electrode are provided. The electrode has relatively larger and more uniform pores than those found in typical electrodes. The fabrication method includes the steps of mixing sodium chloride particles selected from a predetermined size range with metal particles selected from a predetermined size range, and then rigidifying the mixture. The electrode exhibits lower resistivity values of approximately 0.5 {Omega}cm{sup 2} than those resistivity values of approximately 1.0--1.5 {Omega}cm{sup 2} exhibited by currently available electrodes.
Date: October 9, 1990
Creator: Bloom, I.D.; Nelson, P.A. & Vissers, D.R.
System: The UNT Digital Library
High-temperature electrically conductive ceramic composite and method for making same (open access)

High-temperature electrically conductive ceramic composite and method for making same

The present invention relates to a metal-oxide ceramic composition useful in induction heating applications for treating uranium and uranium alloys. The ceramic composition is electrically conductive at room temperature and is nonreactive with molten uranium. The composition is prepared from a particulate admixture of 20 to 50 vol. % niobium and zirconium oxide which may be stabilized with an addition of a further oxide such as magnesium oxide, calcium oxide, or yttria. The composition is prepared by blending the powders, pressing or casting the blend into the desired product configuration, and then sintering the casting or compact in an inert atmosphere. In the casting operation, calcium aluminate is preferably added to the admixture in place of a like quantity of zirconia for providing a cement to help maintain the integrity of the sintered product.
Date: June 9, 1981
Creator: Beck, D.E.; Gooch, J.G.; Holcombe, C.E. Jr. & Masters, D.R.
System: The UNT Digital Library
Can-Opener (open access)

Can-Opener

Patent for a new and improved can opener. This design "consists of can-opener comprising a blade or cutter vertically adjustable to allow it to be forced into a can-head to be cut" (lines 34-36).
Date: August 9, 1898
Creator: Connett, Matthew F.
System: The Portal to Texas History
Reed-Organ (open access)

Reed-Organ

Patent for improvements in the construction and design of reed organs.
Date: July 9, 1907
Creator: England, James R.
System: The Portal to Texas History
Washing-Machine (open access)

Washing-Machine

Patent for a new and improved design and construction for washing machines.
Date: April 9, 1901
Creator: Davis, John Lafayette
System: The Portal to Texas History
BalingPress (open access)

BalingPress

Patent for the usefulness of baling press.
Date: October 9, 1906
Creator: Woodward, William H.
System: The Portal to Texas History
Calf-Weaner. (open access)

Calf-Weaner.

Patent for "new and useful Improvements in Calf-Weaners." (line 5-6) including instructions and illustrations.
Date: January 9, 1906
Creator: Chandler, William E.
System: The Portal to Texas History
Combined Harrow and Roller (open access)

Combined Harrow and Roller

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.
System: The Portal to Texas History
Tramper-Press (open access)

Tramper-Press

Patent for a tramper press for pressing cotton into bales. Illustrations included.
Date: April 9, 1912
Creator: Wilson, Ralph E.
System: The Portal to Texas History
Hame Fastener (open access)

Hame Fastener

Patent for a hame fastener. Illustration included.
Date: May 9, 1911
Creator: Hyman, Henry F. & Carson, A. M.
System: The Portal to Texas History
Pump-Rod-Operating Device for Windmills. (open access)

Pump-Rod-Operating Device for Windmills.

Patent for a new and useful improvement in pump rod operating devices for windmills, including instructions and illustrations.
Date: May 9, 1899
Creator: Vernon, William E.
System: The Portal to Texas History
Machine for Forming Round Cotton-Bales. (open access)

Machine for Forming Round Cotton-Bales.

Patent to improve automation for forming round cotton bales in baling presses, including illustrations.
Date: January 9, 1906
Creator: Cagle, Carter M.
System: The Portal to Texas History
Clamp. (open access)

Clamp.

Patent for a clamp "for use in in connection with hoisting-tackle for raising or lowering well-pipes..."(lines 9-10) that has one side attach to the pipe and the other side be releasable from the pipe.
Date: April 9, 1907
Creator: Danforth, Joseph B.
System: The Portal to Texas History
Steam-Cooker. (open access)

Steam-Cooker.

Patent for an improved version of the inventor's previous steam cooker.
Date: August 9, 1910
Creator: Daniels, Laura Eugenia
System: The Portal to Texas History
Window-Frame Attachment (open access)

Window-Frame Attachment

Patent for a window frame attachment of bars that shades can be attached to.
Date: July 9, 1912
Creator: Hillman, Annie M.
System: The Portal to Texas History
Design for a Hame Attachment. (open access)

Design for a Hame Attachment.

Design patent for a hame attachment that is symmetrical in configuration making it adaptable to be used in either the right or left hand.
Date: May 9, 1899
Creator: Surghnor, Daniel H.
System: The Portal to Texas History
Cleaning Apparatus. (open access)

Cleaning Apparatus.

Patent for a vacuum for cleaning cotton gins that attaches to the pneumatic elevators generally found in cotton gins.
Date: April 9, 1907
Creator: Sadler, Arthur E.
System: The Portal to Texas History
Wind and Water Motor. (open access)

Wind and Water Motor.

Patent for improvements in wind and water motors in which it will not only increase its efficiency and durability but also, be capable of operating in tidal rivers, streams and other currents. This is an improvement of patent no. 588572 of the same inventor. Illustration is included.
Date: January 9, 1900
Creator: Hardaway, Robert Early
System: The Portal to Texas History
Insect Destroying Machine (open access)

Insect Destroying Machine

Patent for "certain new and useful Improvements in Insect-Destroying Machines,"(lines 6-7) including description and illustrations.
Date: September 9, 1904
Creator: Doak, John S.
System: The Portal to Texas History
Hand-Stamp. (open access)

Hand-Stamp.

Patent for improvements in hand-stamps which “comprises a flexible bed of perculiar formation, removable type, means for securing the type in place against accidental displacement, and a bar connecting the ends of the bed when bowed and serving as a handle.” (Lines 17-22) Illustration is included.
Date: April 9, 1901
Creator: Johnson, John Calvin
System: The Portal to Texas History
Air-Cycle (open access)

Air-Cycle

Patent for an air cycle that allows a person to fly by pedaling. Illustrations included.
Date: January 9, 1912
Creator: Price, Joseph H.
System: The Portal to Texas History
Safety-Stirrup. (open access)

Safety-Stirrup.

Patent for a safety stirrup which has a locking mechanism, which will open if a rider is thrown from the saddle to release the foot from the stirrup.
Date: March 9, 1909
Creator: Batson, Joseph A.
System: The Portal to Texas History
Light-Reflecting Device. (open access)

Light-Reflecting Device.

Patent for a simple and portable light reflecting device designed to be placed on top of a piano, organ, or other musical instrument. The device is designed to amplify light from a lamp or other lighting device and reflect it downward and backward onto an instrument's music board. The device also shades the eyes of a performer and allows music to be read without straining the eyes.
Date: April 9, 1907
Creator: Schelb, Peter Jay
System: The Portal to Texas History