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Automatic Regulator for Pneumatic Flues

Description: Patent for a regulated valve to automatically maintain air pressure in a pneumatic conveyor flue. Excessive air pressure causes a secondary valve to open and vent the pressure while at the same time impeding air flow downstream.
Date: May 28, 1901
Creator: Caffey, Charles B.
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Partner: UNT Libraries Government Documents Department

Boat-Propeller.

Description: Patent for a boat propeller, which is inexpensive and adaptable to small boats. The propeller can go forwards or backwards and use multiple oars.
Date: February 5, 1901
Creator: Caffey, John W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Dish-Washer

Description: Patent fora dishwasher. The object of this invention is to furnish an improved means for washing dishes in such a manner that all foreign substances, greasy matters, and offensive odors may be readily and expeditiously removed and the dishes restored dry and clean by the operation of the machine without handling them.
Date: October 6, 1891
Creator: Hoppe, J. Frederick William
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Partner: UNT Libraries Government Documents Department

Car-Replacer

Description: Patent for improved replacers for derailed railroad cars, complete with illustrations.
Date: April 13, 1915
Creator: Duval, Allen
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Partner: UNT Libraries Government Documents Department

Cattle-Guard

Description: Patent for an improved cattle guard with two parts that is adapted to specifically fit either inside the railroad tracks or alongside them.
Date: October 28, 1919
Creator: Fisher, Thomas M.
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Partner: UNT Libraries Government Documents Department

Violin.

Description: Patent for an improved violin that is meant to "improve the acoustical properties of the instrument whereby it is enabled to give forth a deeper and softer tone, free from the "twang" common in instruments of this character, and second, to improve the mechanical construction of the instrument so that it will be less liable to become split" (lines 26-33).
Date: May 2, 1893
Creator: Clopton, John B.
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Partner: UNT Libraries Government Documents Department

Pneumatic Cotton-Conveyer.

Description: Patent for a combined cotton elevator and feeder "having exceedingly few parts and which can be easily operated and kept in running order, and which will be cheap, strong, and durable," (lines 34-40) including illustrations.
Date: November 3, 1891
Creator: Clopton, John B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Paper-File.

Description: Patent for improvements in paper-files by using a "combination of a base board and a clamp provided with a jaw, a presser-foot provided with a bearing, a crank-shaft journaled in the bearing with its cranked portion under the clamp, and a hinged support or flap under the presser-foot." (Lines 75-80, p. 2) Papers can be held in position or remove by the raising or lowering the presser-foot. Illustration is included.
Date: August 18, 1891
Creator: Clopton, John B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Folding Lamp Shelf for Pianos.

Description: Patent for a new and improved lamp shelf for pianos. This design "consists in an arm pivoted to the back of a music-rack and carrying a lamp-shelf, the arm being arranged to swing outward into a horizontal position, and the shelf being connected with the end of the arm by a pivotal connection, which permits of turning it outward and downward into a horizontal position in front of the plane of the music-rack" (lines 22-30).
Date: August 31, 1886
Creator: Prause, Reinhard
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Partner: UNT Libraries Government Documents Department

Saw Gummer.

Description: Patent for a new and improved saw gummer. This design "is to improve the action and prolong the usefulness of the bit and dies, and to prevent the clippings from interfering with the operation of the machine" (lines 26-29).
Date: July 28, 1885
Creator: Clopton, John Benjamin
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Partner: UNT Libraries Government Documents Department

Improvement in Cotton-Presses.

Description: Patent for "cotton-presses of the upright kind; and the nature thereof consists in combining, with a pulley-wheel keyed upon the shaft of a gear-wheel actuating the follower-screw, and a larger pulley-wheel keyed upon the shaft of a gear-wheel actuating a cog-wheel upon the end of an actuating-shaft, having its bearings at one end in the press-frame, and at the other in a vibrating lever, whereby the said friction-pulley can be brought to bear against the larger pulley, for the purpose of runni… more
Date: April 6, 1875
Creator: Knowles, William W.
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Partner: UNT Libraries Government Documents Department

Improvement in Cotton-Presses.

Description: Reissued patent for a new and useful improvement in cotton press: "The invention consists in operating the nut of a follower-screw by means of a drive-pinion, whose own shaft is actuated alternately in opposite directions, by a friction-wheel" (lines 13-16).
Date: March 31, 1874
Creator: Knowles, William Wadsworth
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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