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Hallsville Quadrangle

Description: Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date: 1976
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Map
Location: 32.56 -94.56
Partner: UNT Libraries Government Documents Department

Hallsville Quadrangle

Description: Satellite image topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date: 2010
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Map
Location: 32.56 -94.56
Partner: UNT Libraries Government Documents Department

Hallsville Quadrangle

Description: Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000
Date: 1992
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Map
Location: 32.56 -94.56
Partner: UNT Libraries Government Documents Department

Hallsville Quadrangle

Description: Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000
Date: 2013
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Map
Location: 32.56 -94.56
Partner: UNT Libraries Government Documents Department

Hallsville Quadrangle

Description: Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000
Date: 1964
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Map
Location: 32.56 -94.56
Partner: UNT Libraries Government Documents Department

Hallsville Quadrangle

Description: Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000
Date: 1984
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Map
Location: 32.56 -94.56
Partner: UNT Libraries Government Documents Department

Conveyer.

Description: Patent for a new conveyer design “which is particularly adapted to load or unload railroad-car wheels or other heavy material on and of cars” (Lines 13-15) including illustrations.
Date: July 22, 1902
Creator: St. James, Henry Livingston
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Beamless Brake

Description: Patent for a beamless brake for rail cars. Illustration included.
Date: September 27, 1904
Creator: Saling, Thomas W. & McKiel, James B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Air-Brake

Description: Patent for an air brake for trains that reduces jerking when the brakes are applied.
Date: February 6, 1912
Creator: Mead, William E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Axle-Box.

Description: Patent for a simple, inexpensive, and durable wheel-axle box that is "adapted to contain a supply of lubricating material and constructed to feed the same continuously to the axle-spindle to prevent overheating, and furthermore, to provide means for preventing ingress of dust" (lines 9-14).
Date: November 19, 1895
Creator: Casto, Tony Lo
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Axle-Box.

Description: Patent for an axle-box for vehicle wheels that "contains a lubricant-receiving recess from which the lubricant is automatically fed to the spindle of the axle as necessity may occasion" (lines 10-13).
Date: May 8, 1894
Creator: Casto, Tony Lo
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Advertising-Fan.

Description: Patent for "an attractive sign, which by reason of its revolutions will receive notice from the general public and illustrate business cards or signs, and furthermore to operate the same by and in conjunction with a fan, such as is commonly used in public places." (Lines 15-20) Includes instructions and illustrations.
Date: April 30, 1895
Creator: Lo Casto, Tony
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Angle Cock Device

Description: Patent for "stop cocks for controlling the flow of fluids and more particularly to what are known as angle cocks for use in train pipes of air brake and other fluid pressure systems upon railway cars" (lines 8-13) including illustrations.
Date: March 9, 1915
Creator: Ellwood, Thomas B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

[Trading Card: Bald Cypress]

Description: Trading card issued as part of the Geocache Challenge program for Caddo Lake State Park, depicting an image of a family in a canoe, in water that is surrounded by bald cypress trees. The back of the card includes information about the trees.
Date: 2011
Creator: Texas. Parks and Wildlife Department.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department

Wrecking-Frog.

Description: Patent for "an improved frog for use in placing derailed cars or locomotives upon the rails, exceedingly simple and durable in construction, and formed substantially in one piece - that is, not in sections - and having improved means to lock the frog to the rail." (Lines 17-22) Includes instructions and illustrations.
Date: March 29, 1892
Creator: Wilmore, William Henry
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Valve Mechanism For Steam Engines

Description: Patent for useful improvements to the valve mechanism for steam engines. The invention allows an improved means for actuating the slide valve without the use of eccentrics. The valve can also be operated into closed positions at various degrees, and also to reverse the direction of travel of the valve.
Date: June 9, 1914
Creator: Wright, Ed W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Life Boat.

Description: Patent for a new and improved life boat. This design "consists in providing a steam-launch with a float on each side, secured by suitable strong braces thereto, and to provide said floats with a hand-rail, so that persons can hold onto said rails, and are prevented from being washed off" (lines 17-22).
Date: March 13, 1883
Creator: Dwyer, Daniel
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Life Boat.

Description: Patent for a new and improved life boat. This design consists "[i]n a life-boat, the combination of a hull having the portion of its sides above the water-line overhanging and concave and having the portion of its sides below the water-line convex, with air-chambers having their inner walls curved corresponding to the curves of the upper portion of the sides and converging into the sides at their lower edges, the said chambers increasing in capacity toward the upper edges of the sides of the hu… more
Date: June 16, 1885
Creator: Dwyer, Daniel
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Machine for Filing Gin Saws.

Description: Patent for a new and improved machine to sharpen the teeth of cotton gin saws. This design utilizes two bevel-faced wheels connected to a block between two arms that clamp the saw blade. The bevel-faced wheels sharpen the teeth of the blade, and the nuts and bolts of the frame allow for movement as well as tightening and loosening.
Date: August 17, 1880
Creator: McAllister, Alexander F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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