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.
Item Type: Refine your search to only Patent

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.
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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.
Item Type: Refine your search to only Patent

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.
Item Type: Refine your search to only Patent

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
Item Type: Refine your search to only Patent

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.
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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.
Item Type: Refine your search to only Patent

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.
Item Type: Refine your search to only Patent
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