UNT Libraries Government Documents Department - 36 Matching Results

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Adjustable Split Lock-Nut or Union.

Description: Patent for an affordable and efficient coupling device for use "on valve rods of internal combustion engines, especially those used in automobiles and aeroplanes or on those motors or engines employing overhead valves and whereby the union or coupling may be readily and securely locked on a valve rod with sufficient resistance to withstand the strain of direct pressure" (lines 14-21).
Date: August 17, 1920
Creator: Dickinson, Harry E.

Aeroplane

Description: Patent for Aeroplane. This flying machine will automatically return to normal horizontal position if tilted.
Date: September 17, 1909
Creator: MacManus, Agustus, F.

Artificial Teeth.

Description: Patent for the lower set of artificial teeth, "and aims to provide retainers and combine them with the plate, so as to hold the denture in place against accidental displacement during the process of articulation, prehension, mastication, and deglutition" (lines 10-15). This invention "provides retainers which fill a vacuum in the mouth never heretofore utilized in the construction of artificial teeth and which form a rest for the muscles in their contraction incident to the movements of the jaw… more
Date: September 17, 1895
Creator: Johnston, George A. & Carroll, Houston M.

Attachment for Automobiles

Description: Patent for a spring motor attachment for automobiles.
Date: January 17, 1911
Creator: Carroll, Houston M.

Autographic Register.

Description: Patent for an autographic register that provides "improved means for guiding, stamping, cutting, and filling a record-bill and discharging original and duplicate bills; [provides] improved means for guiding the strips of paper and holding the carbon or duplicating paper in operative position; furthermore, [provides] improved means for operating the several parts of the mechanism to insure accuracy and facilitate the subsequent permanent filing of the record-bills" (lines 9-19).
Date: September 17, 1895
Creator: Norcross, George A.

Automatic Telephone-Directory.

Description: Patent for a new and useful automatic telephone directory, including instructions and illustrations.
Date: October 17, 1899
Creator: Neuendorff, John B.

Baling-Press.

Description: Patent for certain new and useful improvements in baling presses.
Date: May 17, 1898
Creator: Holmgreen, Julius H.

Ball-Bearing.

Description: Patent for a new and useful ball bearing, including instructions and illustrations.
Date: October 17, 1899
Creator: Millen, George

Cage or Support for Well-Tubing

Description: Patent for a well tubing cage which provides support for well tubes so that a second pipe is not required. Illustrations included.
Date: January 17, 1911
Creator: Harpham, Harry C.

Combination Tie and Rail-Joint

Description: Patent for improvement in the safety of tie and rail-joints. Improves the connection so that independent movement of the tie and rail is reduced.
Date: November 17, 1914
Creator: Knaus, John J.

Composite Lamp-Chimney.

Description: Patent for a lamp chimney that prevents insects from falling into the chimney and keeps the flame inside the chimney.
Date: October 17, 1893
Creator: Schwartz, Jacob

Door Controlled Electric Switch

Description: Patent for an improved switch attachment that will allow a room, vault, or compartment to be kept lighted when door is open or closed, but may also be shut off when leaving the room.
Date: October 17, 1916
Creator: Kreter, Otto

Electrical Testing Device.

Description: Patent for new and useful improvements in electrical testing devices. The invention provides references to innovative changes that allow for improved high-tension coil and armature testing.
Date: August 17, 1920
Creator: Bierbower, Richard C.

Electrical Testing Device

Description: Patent for a device to test electrical circuits for faults which is cheaper to manufacture, easier to use, smaller and more durable.
Date: August 17, 1920
Creator: Bierbower, Richard C.

Expanding Hub.

Description: Patent for certain new and useful improvements in metallic vehicle wheel hubs, including instructions and illustrations.
Date: May 17, 1898
Creator: Vollrath, Louis F.

Fire Box

Description: Patent for a fire box. Illustration included.
Date: January 17, 1905
Creator: Butcher, George W.

Gradometer.

Description: Patent for a gradometer "which will accurately indicate under the most varying and unstable conditions the inclination and declination at which any moving body is traveling" (lines 10-13). The gradometer is "particularly adapted for use on motor vehicles" (lines 15-16).
Date: May 17, 1921
Creator: Hall, Sidney Wilson

Hoeing-Machine

Description: Patent for improvements to hoeing machines "as will cause the hoes to cultivate around the particular plant pointed out without it being necessary for the indicator to remain at rest while each plant is being hoed; second, to provide a pair of oscillating disks that cultivate before and behind the plant as they oscillate across the row" (lines 15-21).
Date: June 17, 1890
Creator: Hurd, Judson B.

Ice Making and Blocking Machine.

Description: Patent for a new and improved ice machine. This design consists in "the combination of a non-conductive casing containing a freezing tank having water supply and discharge pipes, a water-tight diaphragm supported in said casing above the bottom of said tank having downwardly-tapered hollows in its upper surface and corresponding upwardly-tapered molds in its under surface, and a refrigerating medium contained within the said casing over said diaphragm and filling the hollows in the latter" (lin… more
Date: May 17, 1887
Creator: Knox, George F.

Improvement in Bag-Fasteners.

Description: Patent for "a new and useful improvement in the manner of fastening bags and attaching labels or shipping directions" (lines 4-7) including illustrations.
Date: June 17, 1879
Creator: Terrell, Will

Improvement in Sand-Conveyers.

Description: Patent for a machine for "taking up and conveying sand into a suitable receptacle". Patent for breaking up sand and transferring it into a receptacle by means of circular cutters, conducting apron, inclined plate.
Date: July 17, 1877
Creator: Garcia, Rufino C.

Lawn-Rocker.

Description: Patent for a lawn rocker improvement that provides swing and is durable and inexpensive.
Date: July 17, 1906
Creator: Coffy, Ida May
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