UNT Libraries Government Documents Department - 18 Matching Results

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Charge Firing Pin

Description: Patent for a new improvement in Charge - Firing Pens by John N. Swanson. Designed for bombs and torpedoes to create a simple firing pen mechanism that is simple, yet prevents accidental detonation of munitions
Date: January 14, 1918
Creator: Swanson, John N.
Item Type: Refine your search to only Patent

Core-Barrel.

Description: Patent for a core barrel for use in rotary drilling of oil or water wells, that will allow for easy extraction of the upwardly extending column of material.
Date: October 14, 1919
Creator: Humason, Granville A. & Childs, William L.
Item Type: Refine your search to only Patent

Display Rack

Description: Patent for store window display racks which can be easily removed and altered in appearance, allowing for more unique showings of commercial goods.
Date: July 14, 1914
Creator: Adamson, John Seldon
Item Type: Refine your search to only Patent

Engine-Starter.

Description: Patent for an internal combustion engine starter that is operated using compressed air. Compressed fluid can be used for other purposes such as inflating tires.
Date: October 14, 1913
Creator: Hume, John
Item Type: Refine your search to only Patent

Hydrocarbon-Burner.

Description: Patent for a hydrocarbon burner that has plurality of nozzles from which hydrocarbon is discharged by steam pressure to collide at common point before combustion.
Date: October 14, 1913
Creator: Wall, William T.
Item Type: Refine your search to only Patent

Motor-Tricycle.

Description: Patent for a specification to improve a motor-tricycle's ability to ride over obstructions and uneven surfaces to reduce shock to the front of the frame and the rider (lines 14-20). The patent includes the detailed specifications and illustrations.
Date: July 14, 1914
Creator: Benton, Walter L.
Item Type: Refine your search to only Patent

Pencil Attachment

Description: Patent for a pencil attachment that serves the purpose of protecting the pencil point when not in use. The attachment also protects and cleans the rubber or eraser of the pencil.
Date: April 14, 1914
Creator: Swindowsky, Charles
Item Type: Refine your search to only Patent

Roller Boring-Drill.

Description: Patent for an invention relating to "boring drills of the type having roller forms of cutters" (line 9). Structure is explained and illustration of invention is included.
Date: August 14, 1917
Creator: Reed, Clarence Edward
Item Type: Refine your search to only Patent

Valve.

Description: Patent for a valve, comprised of a valve seat and a moving part that is made in such a way as to minimize wear and tear. The seat, which attaches to the pump stem, supports the value stem, which is then covered by a thimble that supports a rubber disk. This rubber disk helps prevent liquid and sand from wearing against the valve stem.
Date: November 14, 1911
Creator: Wintz, Thornton E.
Item Type: Refine your search to only Patent

Well Drilling Mechanism

Description: Patent for a well drilling mechanism. This invention addresses the time consuming labor of screwing together sections of drilling pipe. This invention "contemplates an apparatus adapted to be attached to the frame of the rotary and operated by the driving mechanism of the rotary...screwing and unscrewing accomplished by mechanical means without manual means" (lines 38-44). Illustration included.
Date: January 14, 1913
Creator: Hall, Samuel N.
Item Type: Refine your search to only Patent
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