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Improved photoelectrodialytic cell (open access)

Improved photoelectrodialytic cell

A multicompartment photoelectrodialytic demineralization cell is provided with a buffer compartment interposed between the product compartment and a compartment containing an electrolyte solution. Semipermeable membranes separate the buffer compartment from the product and electrolyte compartments. The buffer compartment is flushed to prevent leakage of the electrolyte compartment from entering the product compartment.
Date: August 14, 1981
Creator: Murphy, G.W.
System: The UNT Digital Library
Acoustical heat-pumping engine (open access)

Acoustical heat-pumping engine

The disclosure is directed to an acoustical heat pumping engine without moving seals. A tubular housing holds a compressible fluid capable of supporting an acoustical standing wave. An acoustical driver is disposed at one end of the housing and the other end is capped. A second thermodynamic medium is disposed in the housing near to but spaced from the capped end. Heat is pumped along the second thermodynamic medium toward the capped end as a consequence both of the pressure oscillation due to the driver and imperfect thermal contact between the fluid and the second thermodynamic medium.
Date: August 14, 1981
Creator: Wheatley, John C.; Swift, Gregory W. & Migliori, Albert
System: The UNT Digital Library
Detonator-activated ball shutter (open access)

Detonator-activated ball shutter

A detonator-activated ball shutter for closing an aperture in about 300 ..mu..seconds is disclosed. The ball shutter containing an aperture through which light, etc., passes, is closed by firing a detonator which propels a projectile for rotating the ball shutter, thereby blocking passage through the aperture.
Date: May 14, 1981
Creator: McWilliams, R. A. & Von Holle, W. G.
System: The UNT Digital Library
Design for Horseshoe. (open access)

Design for Horseshoe.

Design patent for horseshoe with the flat lips projecting upwardly from the outer edge of the shoe and inwardly toward the center.
Date: September 14, 1897
Creator: Cooper, William M. & Cates, John Wesley
System: The Portal to Texas History
Draft-Equalizer (open access)

Draft-Equalizer

Patent for "a draft-equalizer that the draft will be equally distributed among each of the animals attached thereto, so that one may travel in the furrow, if desired, and the remainder permitted to move over the unplowed ground" (lines 22-27).
Date: May 14, 1901
Creator: Anderson, Samuel Cornelious
System: The Portal to Texas History
Cultivator-Sweep. (open access)

Cultivator-Sweep.

Patent for a cultivator sweep that cuts weeds close to the crops.
Date: February 14, 1911
Creator: Lundghren, Charles & Anderson, Gus E.
System: The Portal to Texas History
Double Acting Pump (open access)

Double Acting Pump

Patent for a double acting pump. Illustration included.
Date: December 14, 1909
Creator: Holekamp, Richard G.
System: The Portal to Texas History
Elevating-Truck. (open access)

Elevating-Truck.

Patent for invention to "improve the construction of elevating-trucks and to provide a simple and comparatively inexpensive apparatus adapted to be readily moved from one place to another and capable of enabling bales, boxes and the like to be readily lifted from the ground or other supporting-surface and raised to a convenient position for loading such freight upon a wagon or other conveyance" (p. 1, lines 10-18).
Date: September 14, 1900
Creator: Penick, James E.
System: The Portal to Texas History
Bottle (open access)

Bottle

Patent for a new and useful improvements in bottles. This invention is to "provide an improved vessel of this class the neck of which is formed in such manner and provided with attachments so constructed that when the vessel has been filled and the attachment applied the vessel may be emptied of its contents, but cannot be refilled or reused" (line 12- 18).
Date: December 14, 1897
Creator: Saunders, David Robert
System: The Portal to Texas History
Building Construction (open access)

Building Construction

Patent for metal beams used in building construction that have perforated plates to allow the passage of concrete through the plate when the metal piece is embedded in concrete thus strengthening the attachment of the metal and the concrete.
Date: May 14, 1907
Creator: Keyser, William H.
System: The Portal to Texas History
Crayon Holder (open access)

Crayon Holder

Patent for a new and useful improvements in crayon holders. This design is to "provide an improved device which may be constructed cheaply, be light, and have a neat appearance" (line 13-14).
Date: December 14, 1897
Creator: Rugeley, Fannie M.
System: The Portal to Texas History
Cotton-Packer. (open access)

Cotton-Packer.

Patent for an improved cotton packer, which automatically restarts when it finishes a bale.
Date: July 14, 1908
Creator: Cass, Eral B.
System: The Portal to Texas History
Combined Automobile Tail-Light and Illuminated Number. (open access)

Combined Automobile Tail-Light and Illuminated Number.

Patent for a combined automobile tail-light and illuminated frame for the number of the car.
Date: February 14, 1911
Creator: Stafford, Frederick S.
System: The Portal to Texas History
Automatic Signal System (open access)

Automatic Signal System

Patent for an automatic signal system for use with railways. Illustrations included.
Date: December 14, 1909
Creator: Adams, Powell O.
System: The Portal to Texas History
Acetylene Gas Machine (open access)

Acetylene Gas Machine

Patent for a new and useful improvement in gas-machines.
Date: December 14, 1897
Creator: Bryant, Henry
System: The Portal to Texas History
Combined Funnel and Dipper. (open access)

Combined Funnel and Dipper.

Patent for a ladle with an attached funnel for pouring the liquid out.
Date: April 14, 1908
Creator: Hanson, Henry Harrison
System: The Portal to Texas History
Bottle-Washing Machine (open access)

Bottle-Washing Machine

Patent for a machine that washes bottles. Illustrations included.
Date: January 14, 1908
Creator: Greer, Jesse Wade
System: The Portal to Texas History
Greasing Device (open access)

Greasing Device

Patent for a greasing device. Illustration included.
Date: July 14, 1908
Creator: Overall, Ida L. & Bock, T. J.
System: The Portal to Texas History
Animal-Trap (open access)

Animal-Trap

Patent for an animal trap whose specially designed cylinders play a crucial role in tiring the animal while it is struggling to escape the trap doors Ultimately, succumbing to exhaustion and hastening its drowning in the trap's water reservoir.
Date: January 14, 1913
Creator: Link, William A.
System: The Portal to Texas History
Revolving Sand Drag (open access)

Revolving Sand Drag

Patent for a new and useful improvements in revolving sand drags. This design is to "provide a machine of this character by means of which the sand-bars in formed in rivers" (line 12-14)
Date: December 14, 1897
Creator: Murphy, James
System: The Portal to Texas History
Bale Tie (open access)

Bale Tie

Patent for a new and improved bale tie. This invention is to "provide a new and improved bale-tie which is simple and durable in construction, not liable to become accidentally unlocked, and arranged to permit its use on ordinary compresses" (line 7 - 11).
Date: December 14, 1897
Creator: Edmonston, Thomax Cole
System: The Portal to Texas History
Display-Board. (open access)

Display-Board.

Patent for a display board for advertising and signage in stores.
Date: February 14, 1911
Creator: Fitts, William A.
System: The Portal to Texas History
Cotton-Ginning Machinery. (open access)

Cotton-Ginning Machinery.

Patent for cotton ginning machinery, which separates cotton faster and more cleanly and continuously feeds cotton into the saws.
Date: June 14, 1910
Creator: Wilson, Ralph E.
System: The Portal to Texas History
Acetylene Gas Generator. (open access)

Acetylene Gas Generator.

Patent for a acetylene gas generator which combines "both a generator and a gasometer the parts of which are so arranged as to render the machine efficient and entirely automatic in action, as well as inexpensive of production." (lines 16-20) including illustrations.
Date: October 14, 1902
Creator: Reynolds, Pearl P. & Reynolds, Jerry J.
System: The Portal to Texas History