UNT Libraries Government Documents Department - 895 Matching Results

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Orvil 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: 1980
Creator: Geological Survey (U.S.)
Location: 27.69 -99.44

Aguilares 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 1:62500
Date: 1940
Creator: United States. Army. Corps of Engineers.
Location: 27.38 -99.12

Chain Jack.

Description: Patent for new and useful improvements in chain-jacks. "This invention aims to provide a chain-jack for lifting the boxes of axles, so that the bearings or brasses therefor can be readily replaced, and is designed especially for use in cases of hot boxes on railway-cars" (line 11-15).
Date: February 18, 1902
Creator: Phillips, Henry S.

Lubricator.

Description: Patent for a lubricating device for use on railroad cars, which continuously supplies lubricant to the journal box of the train car.
Date: October 6, 1908
Creator: Maness, William C.

Portable Gold - Washer

Description: Patent for a new and improved portable gold-washer. This invention is to "provide an improved substitute for the crude forms of portable good-washing apparatus frequently employed" (line 8-10).
Date: November 23, 1897
Creator: Kahn, Felix

Multiple Telegraph

Description: Patent for "a simple device of this character by means of which any one of a number of instruments or translating devices at a distance may be operated over a single line-wire and by means of a single flow of electric current through said wire" (lines 10-15).
Date: May 7, 1901
Creator: Foster, Samuel T., Jr.
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