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616 Matching Results
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Nuclear reactor control apparatus. [FBR]
Nuclear reactor safety rod release apparatus comprises a ring which carries detents normally positioned in an annular recess in outer side of the rod, the ring being held against the lower end of a drive shaft by magnetic force exerted by a solenoid carried by the drive shaft. When the solenoid is de-energized, the detent-carrying ring drops until the detents contact a cam surface associated with the lower end of the drive shaft, at which point the detents are cammed out of the recess in the safety rod to release the rod from the drive shaft. In preferred embodiments of the invention, an additional latch is provided to release a lower portion of a safety rod under conditions that may interfere with movement of the entire rod.
Date:
April 16, 1981
Creator:
Sridhar, B.N.
System:
The UNT Digital Library
Gamma-thermometer-based reactor-core liquid-level detector. [PWR]
A system is provided which employs a modified gamma thermometer for determining the liquid coolant level within a nuclear reactor core. The gamma thermometer which normally is employed to monitor local core heat generation rate (reactor power), is modified by thermocouple junctions and leads to obtain an unambiguous indication of the presence or absence of coolant liquid at the gamma thermometer location. A signal processor generates a signal based on the thermometer surface heat transfer coefficient by comparing the signals from the thermocouples at the thermometer location. The generated signal is a direct indication of loss of coolant due to the change in surface heat transfer when coolant liquid drops below the thermometer location. The loss of coolant indication is independent of reactor power at the thermometer location. Further, the same thermometer may still be used for the normal power monitoring function.
Date:
June 16, 1981
Creator:
Burns, T.J.
System:
The UNT Digital Library
Artificial Bait
Patent for an artificial bait. Illustration included.
Date:
June 16, 1908
Creator:
Caldwell, Charley D.
System:
The Portal to Texas History
Combined Cotton-Seed and Corn Planter
Patent for a new and improved combined cotton seed and corn planter. The invention has "relation to improved means for adjusting the wheels laterally to provide for increasing or diminishing the width of the rows" (lines 13-16).
Date:
August 16, 1898
Creator:
Kile, William A.
System:
The Portal to Texas History
Animal-Poke
Patent for an animal poke worn on the head of cattle to prevent jumping outside the field which allows the cow to graze freely while wearing the poke.
Date:
July 16, 1907
Creator:
Seay, Mark Machel
System:
The Portal to Texas History
Angle-Bending Machine
Patent for angle-bending machine.
Date:
December 16, 1902
Creator:
Dillon, Ivy Hancock
System:
The Portal to Texas History
Composition for Removing Boiler-Scale
Patent for "an extract of the plant know to botanists by the name 'Larrea Mexican,' to be used in removing boiler-scale and in preventing the reformation of the same" (lines 9-13).
Date:
April 16, 1901
Creator:
Pena, Benjamin
System:
The Portal to Texas History
Improvements in Sash-Lock
Patent for an improvement on sash locks or fasteners for a window frame to allow two sashes to be controlled by one sash.
Date:
June 16, 1903
Creator:
Miller, John D.
System:
The Portal to Texas History
Bale-Band Fastening
Patent for "a simple and thoroughly-practical form of bale-band fastening or cotton-tie buckle easily fitted to the band and comprising positive and reliable means for effectually preventing the band from slipping or rending without injuring or fracturing the band, so that the original strength of the latter may be maintained" (lines 19-26).
Date:
July 16, 1901
Creator:
Mullane, Dennis
System:
The Portal to Texas History
Aerodrome
Patent for an aerodrome. Illustrations included.
Date:
April 16, 1912
Creator:
Helm, Amos J.
System:
The Portal to Texas History
Bathing-Hat.
Patent for a nearly waterproof hat that will keep the hair dry and protect the face from the sun while being both strong and durable.
Date:
January 16, 1906
Creator:
Herndon, Florence E.
System:
The Portal to Texas History
Combined Touch-Regulating and Mute Attachment for Pianos
Patent for combined touch regulating and mute attachment for pianos.
Date:
December 16, 1902
Creator:
Harriss, Langdon & Kendall, William H.
System:
The Portal to Texas History
Air-Valve Cage for Air-Brake Pumps
Patent for an air valve cage for air brake pumps which reduces the wear on the air brake pump and substantially reduces the maintenance costs of the system.
Date:
February 16, 1909
Creator:
Mattingly, James
System:
The Portal to Texas History
Ash-Pan
Patent for an ash pan for trains. Illustrations included.
Date:
May 16, 1911
Creator:
Spratley, George
System:
The Portal to Texas History
Butt-Cutter
Patent for a machine designed to cut off the butt ends of cereal sheaves should they become wet or muddy. Illustrations included.
Date:
February 16, 1909
Creator:
Janes, Ivey & Lanaux, Alfred A.
System:
The Portal to Texas History
Air Brake Lock
Patent for an air brake lock. Illustrations included.
Date:
May 16, 1905
Creator:
Mabry, Davis L.
System:
The Portal to Texas History
Combination Hoe and Plow
Patent for a tool that can be used as either a hoe or a plow. Illustrations included.
Date:
July 16, 1912
Creator:
Willis, William B.
System:
The Portal to Texas History
Cattle Guard
Patent for a cattle guard. Illustration included.
Date:
June 16, 1908
Creator:
York, Edward Jackson; Howze, Walter L. & Caldwell, Thomas W.
System:
The Portal to Texas History
Animal-Trap
Patent for an animal trap. Illustrations included.
Date:
May 16, 1911
Creator:
Morris, Leopold
System:
The Portal to Texas History
Cattle Guard.
Patent for improvements and new features to cattle guards on railways, including illustrations.
Date:
September 16, 1902
Creator:
Miller, Martin L.
System:
The Portal to Texas History
Iron active electrode and method of making same
An iron active electrode and method of preparing same in which iron sulfate is calcined in an oxidizing atmosphere at a temperature in the range of from about 600/sup 0/C to about 850/sup 0/C for a time sufficient to produce an iron oxide with a trace amount of sulfate are described. The calcined material is loaded into an electrically conductive support and then heated in a reducing atmosphere at an elevated temperature to produce activated iron having a trace amount of sulfide which is formed into an electrode plate.
Date:
April 16, 1981
Creator:
Jackovitz, J.F.; Seidel, J. & Pantier, E.A.
System:
The UNT Digital Library
Process for the production of ethylene and other hydrocarbons from coal
A process is claimed for the production of substantial amounts of ethylene and other hydrocarbon compounds, such as benzene from coal. Coal is reacted with methane at a temperature in the approximate range of 500/sup 0/C to 1100/sup 0/C at a partial pressure less than about 200 psig for a period of less than 10 seconds, and preferably at a temperature of approximately 850/sup 0/C, and a partial pressure of 50 psig for a period of approximately 2 seconds. Ethylene and other hydrocarbon compounds may be separated from the product stream so produced, and the methane recycled for further production of ethylene. In another embodiment, other compounds produced, such as by-product tars, may be burned to heat the recycled methane.
Date:
February 16, 1982
Creator:
Steinberg, M. & Fallon, P.
System:
The UNT Digital Library
Composition For Staining Wood.
Patent for a “paint or stain, which, when applied, will harden on the common woods of commerce, render them durable and smooth, and give them the exact appearance of black walnut” (lines 15-18).
Date:
May 16, 1882
Creator:
Gloger, Anton F., Jr. & Gloger, Joseph P.
System:
The Portal to Texas History
Compressed-Air and Steam Apparatus for Sinking Wells
Patent for "a simple and inexpensive apparatus for drilling the rock and earth until sufficient loose material has accumulated in the shaft, and then remove such material by the pressure of an aeriform fluid - such as steam or compressed air" (lines 23-29).
Date:
July 16, 1889
Creator:
Goodrich, Hervey K.
System:
The Portal to Texas History