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Americium purification by a combined anion exchange and bidentate organophosphorus solvent extraction process. [Patent application]
Americium is separated from mixtures containing plutonium, other actinides, and other non-lanthamide impurities, by a combined process of anion exchange resin sorption to remove plutonium, and a bidentate organophosphorus solvent extraction of americium of the anion exchange resin effluent. Dihexyl-N,N-diethylcarbamylmethylenephosphonate is a preferred solvent. The initial mixture may be subjected to a cation exchange operation to remove monovalent impurities. The process is especially effective when aluminum, zinc, lead, and copper are present in significant quantities in the original mixture.
Date:
April 10, 1981
Creator:
Navratil, J.D. & Martella, L.L.
System:
The UNT Digital Library
Automatic Grain-Measuring Machine.
Patent for automatic grain-measuring machine, with illustrations. The purpose of this automatic grain-measuring machine is to be an improvement to already existing machines.
Date:
April 10, 1888
Creator:
Grissom, Abram Jackson.
System:
The Portal to Texas History
Baling Press
Patent for the "new and improved Baling-Press which is very simple and durable in construction, and is very easily operated by hand or other power" (lines 4-10) including instructions and illustrations. Patent for a new baling-press, including illustrations.
Date:
April 10, 1888
Creator:
Mattijetz, Andreas
System:
The Portal to Texas History
Baling-Press.
Patent for improvements in baling presses: "This invention relates to baling presses provided with runners, (instead of the usual wheels,) to be removed about the field; and my objects are, to construct such a press in such a manner that it can be readily started down with but few stakes, second; to provide a rigid but removable side brace to prevent the press from canting, and third; to prevent the operating lever from canting or swinging upward or downward when in operation; and to promote simplicity" (lines 17-27).
Date:
April 10, 1894
Creator:
Schubert, George
System:
The Portal to Texas History
Bottle-neck
Patent for "an improved neck for bottles and jars; and it consists, essentially, of a notch formed on each side of the cork to enable the fingers of the operator to obtain a firm grip thereon in order to extract same." (lines 8-12)
Date:
April 10, 1906
Creator:
Huffer, Tilghman A.
System:
The Portal to Texas History
Breast for Cotton-Gins.
Patent for improvements in breasts for cotton gins: " My invention relates to certain improvements in the construction of gin breasts for cotton gins and consists in providing in conjunction with a gin breast an adjustable "up-per circle" to facilitate the formation of the roll, to prevent the seed cotton from overflowing from the gin breast as the roll rotates, and preserve the proper degree of contact between the gin saws and the roll" (lines 12-20).
Date:
April 10, 1894
Creator:
Schulze, Andrew
System:
The Portal to Texas History
Buckle.
Patent for a new and improved buckle. This design consists in "[t]he combination, with [a] frame, having [a] hook on [a] cross-piece and [a] tongue on [another] cross-piece, of a loop or keeper, arranged on the under side of frame and between the two cross-pieces" (lines 69-73).
Date:
April 10, 1883
Creator:
Thomas, Floyd W.
System:
The Portal to Texas History
Check Book.
Patent for an improvement to check books and covers.
Date:
April 10, 1900
Creator:
Exline, Marcus P.
System:
The Portal to Texas History
Check-Book.
Patent for improvements to check-books for easier access to the check stubs.
Date:
April 10, 1917
Creator:
Schwander, Peter W.
System:
The Portal to Texas History
Check-Book-Stub Holder.
Patent for a check book stub holder. This device holds back used check stubs in a check book.
Date:
April 10, 1917
Creator:
Exline, Marcus P.
System:
The Portal to Texas History
Combined Elevator, Cleaner, Distributer, and Feeder for Seed-Cotton.
Patent for a "simple and efficient apparatus for conveying seed-cotton from a wagon or other source of supply, to one or more gins or gin feeders, said apparatus being adapted, at the same time, to thoroughly clean the seed-cotton and to deliver it to the gins or feeders in the desired quantities in a uniform manner, and in loose and uncompacted condition" (lines 14-21).
Date:
April 10, 1894
Creator:
Littlefield, Thomas E.
System:
The Portal to Texas History
Combined Elevator, Cleaner, Distributer, and Feeder for Seed-Cotton.
Patent for Combined Elevator, Cleaner, Distributer, and feeder for Seed-Cotton: "provide a simple, cheap and efficient apparatus for taking seed cotton from a wagon, or other source of supply cleaning it, and delivering it in the desired quantity and in a suitable condition for ginning to one or more gins or gin feeders" (lines 13-18).
Date:
April 10, 1894
Creator:
Littlefield, Thomas E.
System:
The Portal to Texas History
Container.
Patent for a collapsible container that is easily assembled without the "employment of nails or fastening devices" (line 10).
Date:
April 10, 1917
Creator:
Dunn, Lewis C.
System:
The Portal to Texas History
Corn Popper
Patent for corn-popper improvement by connecting to the cover of the popper a rotating agitating blade which would prevent the corn within from burning.
Date:
April 10, 1917
Creator:
Zschiesche, William H. M.
System:
The Portal to Texas History
Cultivator.
Patent for a new and improved cultivator. This design consists in "[t]he combination, with a flat shovel and a shank, of the bead on said shovel having a transverse slot therethrough, a slotted wedge inserted between said shovel and shank, and a bolt passing through said bead, wedge, and shank" (lines 95-100).
Date:
April 10, 1888
Creator:
East, Elias
System:
The Portal to Texas History
Design for Sash-Holder.
Patent for "the design [of] a sash or window-frame fastener" (lines 28-30).
Date:
April 10, 1877
Creator:
Overton, Thomas
System:
The Portal to Texas History
Earth-Auger.
Patent for a device that drills into the ground and lifts the contents into a metal container. The hand-operated device also has wings that expand to let the user know when to empty the contents.
Date:
April 10, 1917
Creator:
Phillips, Dave T.
System:
The Portal to Texas History
Elevated Railway.
Patent for improvements in elevated railways: "provide simple means for regulating and adjusting the weight of the car so as to throw the preponderence thereof upon either the upper or the lower track or to equally divide the weight so that each track bear a like proportion" (lines 12-17).
Date:
April 10, 1894
Creator:
Anderson, Lee
System:
The Portal to Texas History
Equalizing Device for Pump-Rods.
Patent for an improved equalizing device for pump-rods used in hand or windmill pumps that increases the operating efficiency and decreases the manufacture cost of the device.
Date:
April 10, 1906
Creator:
Shipman, John Davis
System:
The Portal to Texas History
Hand Propelling Device for Sewing Machines.
Patent for a new and improved crank for sewing machines. This design "is to provide propelling device for sewing-machines and similar treadle-power machines which shall dispense with the treadle-action and injurious strain which its use imposes . . . It consists in a rod jointed to the fly-wheel after the manner of a pitman, but which, instead of connecting with a treadle, is fashioned into a handle, which extends obliquely upward toward the operator, and is combined with and held in place by a guide-frame made in the form of a pendent metal loop with flanged ends and screw-holes" (lines 8-21).
Date:
April 10, 1888
Creator:
Beaird, Kate Palmer
System:
The Portal to Texas History
Hat for Dolls and Other Purposes
Patent for toy hats for dolls. It is a low-cost doll's hat which can also be used to carry candy for children, including illustrations.
Date:
April 10, 1917
Creator:
Keller, Carrie, M.
System:
The Portal to Texas History
Improvement in Bridle Attachments.
Patent for "a bridle of novel construction for training and taming horses; and it consists in the combination of brace and guide-reins, neck and crupper straps, sureingle, and collar." (Lines 12-16) Includes instructions and illustrations.
Date:
April 10, 1877
Creator:
Cummings, Seton S.
System:
The Portal to Texas History
Improvement in Cultivators.
Patent for the improvement of the rotary cultivator with adjustable thinning-points and rotating cutter, including illustration.
Date:
April 10, 1855
Creator:
Morrel, A. H.
System:
The Portal to Texas History
Insect-Guard
Patent for a device that can be attached to furniture and which traps insects.
Date:
April 10, 1917
Creator:
Kreiter, Richard F.
System:
The Portal to Texas History