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564 Matching Results
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Carrier sense data highway system. [Patent for a two-way Data Transmission System]
A data transmission system is disclosed which includes a transmission medium which has a certain propagation delay time over its length. A number of data stations are successively coupled to the transmission medium for communicating with one another. Each of the data stations includes a transmitter for originating signals, each signal beginning with a carrier of a duration which is at least the propagation delay time of the transmission medium. Each data station also includes a receiver which receives other signals from other data stations and inhibits operation of the transmitter at the same data station when a carrier of another signal is received.
Date:
April 30, 1981
Creator:
Frankel, R.
System:
The UNT Digital Library
One-piece, composite crucible with integral withdrawal/discharge section
A one-piece, composite open-bottom casting mold with integral withdrawal section is fabricated by thermal spraying of materials compatible with and used for the continuous casting of shaped products of reactive metals and alloys such as, for example, titanium and its alloys or for the gas atomization thereof.
Date:
July 30, 2002
Creator:
Besser, Matthew; Terpstra, Robert L. (Iowa State Univ., Ames, IA); Sordelet, Daniel J.; Anderson, Iver E.; Hartman, Alan D.; Argetsinger, Edward R. et al.
System:
The UNT Digital Library
Apparatus For Making Mattresses
Patent for mattress making machine, which cleans, compresses, and stuffs cotton or other materials into a mattress, including illustrations.
Date:
July 30, 1901
Creator:
Woolery, John T.
System:
The Portal to Texas History
Alarm Attachment for Electric Bells.
Patent for "an Alarm Attachment for Electric Bells." "The object in view is the provision of means for facilitating the change of an ordinary door-bell into a continuously-ringing alarm apparatus, while leaving the mechanism free to be changed back into its former operative condition as a door-bell."(Lines 10-15) Including illustrations and instructions.
Date:
June 30, 1902
Creator:
Blakeney, Henry
System:
The Portal to Texas History
Apparatus for Checking Runaway Horses.
Patent for a new and useful apparatus for checking runaway horses, including instructions and illustrations.
Date:
August 30, 1898
Creator:
Singleton, James M.
System:
The Portal to Texas History
Bale-Tie.
Patent for a bale-fastening device that "may be applied with facility to a cotton-bale or to an equivalent package." (lines 9-11) including instructions and illustrations. The tie comprises "a band, a key engaged with the band and rotatable to coil the same therearound, and a lock fitted upon the band and engaged with the key to prevent reverse rotation thereof" (lines 105-109).
Date:
August 30, 1898
Creator:
Campbell, Douglas M.
System:
The Portal to Texas History
Air-Lift Pump
Patent for an air lift pump. Illustrations included.
Date:
July 30, 1912
Creator:
Holmgreen, Julius H. & Underwood, William H.
System:
The Portal to Texas History
Multipolar corneal-shaping electrode
The disclosure relates to a multipolar probe using radiofrequency energy to reshape the cornea of an eye. The surface of the cornea is flushed continuously with a conductive coolant during operation.
Date:
April 30, 1981
Creator:
Doss, J.D.
System:
The UNT Digital Library
Cattle-Guard.
Patent for a simple and inexpensive cattle-guard that has comprising rollers which can be independently and easily replaced. The bars that hold the rollers can also be easily removed.
Date:
January 30, 1894
Creator:
Lefléve, Louis
System:
The Portal to Texas History
Ant-Trap
Patent for an ant trap,with illustrations. Purpose of the invention was to be efficient more efficient in both cost and use in comparison to other ant traps being sold at the time.
Date:
July 30, 1889
Creator:
Davis, Edwin E.
System:
The Portal to Texas History
Bale-Tie.
Patent for a new and improved bale tie. This design utilizes a strap-iron binder with notches along the sides that allow for a bail to clamp firmly within them; thus, the bale is fastened.
Date:
December 30, 1879
Creator:
Johnson, Jordan
System:
The Portal to Texas History
Advertising-Fan.
Patent for "an attractive sign, which by reason of its revolutions will receive notice from the general public and illustrate business cards or signs, and furthermore to operate the same by and in conjunction with a fan, such as is commonly used in public places." (Lines 15-20) Includes instructions and illustrations.
Date:
April 30, 1895
Creator:
Lo Casto, Tony
System:
The Portal to Texas History
Banker's Daily-Balance Index.
Patent for a banker's daily-balance index meant to "promote the speed and accuracy of book-keepers in keeping the personal daily balance ledger in banking and other like business" (lines 9-12). The patent is for a piece of paper divided with ink into strips on the front and back.
Date:
April 30, 1895
Creator:
Thomas, Thomas Parry
System:
The Portal to Texas History
Basic fluid system trainer
This invention, a trainer mounted and housed within a mobile console, is used to teach and reinforce fluid principles to students. The system trainer has two centrifugal pumps, each driven by a corresponding two-speed electric motor. The motors are controlled by motor controllers for operating the pumps to circulate the fluid stored within a supply tank through a closed system. The pumps may be connected in series or in parallel. A number of valves are also included within the system to effect different flow paths for the fluid. In addition, temperature and pressure sensing instruments are installed throughout the closed system for measuring the characteristics of the fluid, as it passes through the different valves and pumps. These measurements are indicated on a front panel mounted to the console, as a teaching aid, to allow the students to observe the characteristics of the system.
Date:
April 30, 1991
Creator:
Semans, J. P.; Johnson, P. G.; LeBoeuf, R. F. Jr.; Kromka, J. A.; Goron, R. H. & Hay, G. D.
System:
The UNT Digital Library
Toroidal magnetic detector for high resolution measurement of muon momenta
A muon detector system including central and end air-core superconducting toroids and muon detectors enclosing a central calorimeter/detector are described in this paper. Muon detectors are positioned outside of toroids and all muon trajectory measurements are made in a nonmagnetic environment. Internal support for each magnet structure is provided by sheets, located at frequent and regularly spaced azimuthal planes, which interconnect the structural walls of the toroidal magnets. In a preferred embodiment, the shape of the toroidal magnet volume is adjusted to provide constant resolution over a wide range of rapidity.
Date:
November 30, 1990
Creator:
Bonanos, P.
System:
The UNT Digital Library
Inductance Device for Wireless Electrical Signaling
Patent for device to "receive messages transmitted in the form of dots, dashes or spoken words through space" (lines 16-17)
Date:
March 30, 1915
Creator:
Lorenz, Charley O.
System:
The Portal to Texas History
Air Brush
Patent for new and useful air brushes that are "intended for spraying paints, or colors, where it is desired to frequently change the color employed or to spray a combination of colors at the same time" (lines 16-20). Illustrations are included.
Date:
May 30, 1916
Creator:
Philibert, Joseph E.
System:
The Portal to Texas History
Drill.
Patent for
Date:
June 30, 1914
Creator:
Weathersby, Fred Richard
System:
The Portal to Texas History
Hame-Fastener
Patent for improvements to a hame-fastener, specifically related to an easily made, inexpensively produced locking mechanism, including illustration.
Date:
June 30, 1914
Creator:
Fowler, Alvah W.
System:
The Portal to Texas History
Harvester
Patent for device used with a harvester to head stalks of corn using an adjustable cutting mechanism.
Date:
March 30, 1915
Creator:
Barnett, Solomon V.
System:
The Portal to Texas History
Hobble.
Patent for a new, simple hobble for cultivators made up of fewer parts to reduce cost and for east of use and adjustment. Illustration included.
Date:
October 30, 1917
Creator:
Ferguson, John R.
System:
The Portal to Texas History
Levee.
Patent for reinforced levees with "means whereby the water will be positively prevented from seeping therethrough and weakening the levee" (lines 14-16).
Date:
September 30, 1913
Creator:
Beazley, John Sr.
System:
The Portal to Texas History
Portable vacuum object handling device
The disclosure relates to a portable device adapted to handle objects which are not to be touched by hand. A piston and bore wall form a vacuum chamber communicating with an adaptor sealably engageable with an object to be lifted. The piston is manually moved and set to establish vacuum. A valve is manually actuable to apply the vacuum to lift the object.
Date:
July 30, 1981
Creator:
Anderson, G.H.
System:
The UNT Digital Library
Duplex sampling apparatus and method
An improved apparatus is provided for sampling a gaseous mixture and for measuring mixture components. The apparatus includes two sampling containers connected in series serving as a independently determine the amounts of condensable and noncondensable gases in admixture from a single sample. More specifically, a first container includes a first port capable of selectively connecting to and disconnecting from a sample source and a second port capable of selectively connecting to and disconnecting from a second container. A second container also includes a first port capable of selectively connecting to and disconnecting from the second port of the first container and a second port capable of either selectively connecting to and disconnecting from a differential pressure source. By cooling a mixture sample in the first container, the condensable vapors form a liquid, leaving noncondensable gases either as free gases or dissolved In the liquid. The condensed liquid is heated to drive out dissolved noncondensable gases, and all the noncondensable gases are transferred to the second container. Then the first and second containers are separated from one another in order to separately determine the amount of noncondensable gases and the amount of condensable gases in the sample.
Date:
January 30, 1991
Creator:
Brown, P. E. & Lloyd, R.
System:
The UNT Digital Library