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Nuclear reactor control apparatus. [FBR] (open access)

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] (open access)

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
Bed-Slat Fastener. (open access)

Bed-Slat Fastener.

Patent for a new and useful bed slat fastener, including instructions and illustrations.
Date: August 16, 1898
Creator: Sonntag, Edwin C.
System: The Portal to Texas History
Cotton Compress (open access)

Cotton Compress

Patent for improvements to the cutting mechanism in cotton compresses to "provide positive and reliable means for severing the full-grown or completed bale from the remaining column of compressed material and yieldingly supporting the said remaining column of compressed material under pressure to permit the baling operation to continue" (lines 21-27).
Date: March 26, 1900
Creator: Griffin, Thomas J.
System: The Portal to Texas History
Artificial Bait (open access)

Artificial Bait

Patent for an artificial bait. Illustration included.
Date: June 16, 1908
Creator: Caldwell, Charley D.
System: The Portal to Texas History
Automatic Dumping-Elevator (open access)

Automatic Dumping-Elevator

Patent for an automatic dumping elevator for supplies which can stop at different heights and dump the contents of the elevator.
Date: November 16, 1909
Creator: Richmond, George E.
System: The Portal to Texas History
Cotton-Condenser and Lint-Flue. (open access)

Cotton-Condenser and Lint-Flue.

Patent for a cotton condenser and lint flue for use in cotton gins.
Date: April 16, 1912
Creator: Summerrow, Willie Price
System: The Portal to Texas History
Electric Signal System (open access)

Electric Signal System

Patent for electric signal system. Illustration included.
Date: May 16, 1905
Creator: Adams, Edwin Johnson
System: The Portal to Texas History
Gate-Latch. (open access)

Gate-Latch.

Patent for a new and useful gate latch, including instructions and illustrations.
Date: May 16, 1899
Creator: Perkins, Oscar P.
System: The Portal to Texas History
Combined Cotton-Seed and Corn Planter (open access)

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
Embossing-Machine. (open access)

Embossing-Machine.

Patent for improvements to embossing machines. specifically machines for embossing saddle leather, including an illustration.
Date: September 16, 1902
Creator: Russell, Frank Keach
System: The Portal to Texas History
Check-Valve for Locomotive-Boilers and the Like. (open access)

Check-Valve for Locomotive-Boilers and the Like.

Patent for "an improvement in check valves particularly adapted for use on locomotive boilers" (lines 9-11) with illustrations.
Date: November 16, 1909
Creator: Fondren, Theodore Robert ; T. R. Fondren
System: The Portal to Texas History
Dirt-Tamping Tool. (open access)

Dirt-Tamping Tool.

Patent for a dirt tamping tool, which is strong and simple to use.
Date: November 16, 1909
Creator: Sherman, Henry A.
System: The Portal to Texas History
Electrical Furnace. (open access)

Electrical Furnace.

Patent for
Date: May 16, 1899
Creator: Eldridge, Hilliary
System: The Portal to Texas History
Animal-Poke (open access)

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
Game Apparatus. (open access)

Game Apparatus.

Patent for a certain new and useful improvement in game apparatus, including instructions and illustrations.
Date: August 16, 1898
Creator: Hutches, Benjamin F. Jr.
System: The Portal to Texas History
Mortising-Tool. (open access)

Mortising-Tool.

Patent for a mortising-tool which is a device for mortising door-frames to get a hinge.
Date: January 16, 1906
Creator: Huber, Frederick K.
System: The Portal to Texas History
Box. (open access)

Box.

Patent for a metal, rural, mail carrier supply box with various compartments for different supplies.
Date: February 16, 1909
Creator: Dullye, August V. & Woodrome, George H.
System: The Portal to Texas History
Cotton-Cultivator. (open access)

Cotton-Cultivator.

Patent for a cotton cultivator, which scratches the stalks of each cotton plant to stunt the plants growth and increase its cotton yield.
Date: March 16, 1909
Creator: Pacha, Anton
System: The Portal to Texas History
Angle-Bending Machine (open access)

Angle-Bending Machine

Patent for angle-bending machine.
Date: December 16, 1902
Creator: Dillon, Ivy Hancock
System: The Portal to Texas History
Draft-Equalizer. (open access)

Draft-Equalizer.

Patent for "devices for equalizing the draft where three or more draft-animals are used" (lines 8-10) to pull machinery, carriages, or wagons with illustrations included.
Date: September 16, 1902
Creator: Hayden, Jefferson B.
System: The Portal to Texas History
Electrically-Actuated Sawmill Set-Works (open access)

Electrically-Actuated Sawmill Set-Works

Patent for an electrically-actuated sawmill set-works that regulates movement of the clutch-stop and set-shaft, which determines the extent of knee-movement including illustrations.
Date: October 16, 1900
Creator: Carroll, William M.
System: The Portal to Texas History
Automatic Cut-Out for Windmills (open access)

Automatic Cut-Out for Windmills

Patent for a windmill part which stops the windmill from running when the water tank is full.
Date: July 16, 1907
Creator: Roesler, John
System: The Portal to Texas History
Boat-Propeller (open access)

Boat-Propeller

Patent for a boat propeller that runs more efficiently by turning in such a way that the load of water on the propeller is taken off when its blades are going up.
Date: July 16, 1912
Creator: Reames, Charles H.
System: The Portal to Texas History