UNT Libraries Government Documents Department - 21 Matching Results

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Hayrick Sheet

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 1:125000
Date: 1909
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Map
Location: 31.75 -100.25

Ice-Tray

Description: Patent describing a "combined water-cooler and ice tray [...for] the cooling of water by ice without the ice coming in contact with the water" (lines 9-12).
Date: May 6, 1902
Creator: Henning, Thomas W.
Item Type: Refine your search to only Patent

Jack.

Description: Patent for a jack for lifting heavy loads on railroads, which has an automatic steady movement of the load up and down without adjusting the jack settings.
Date: August 6, 1907
Creator: Blake, David Alexander & Blake, Charles William
Item Type: Refine your search to only Patent

Spring-Motor

Description: Patent for a motor used to operate light machinery such as sewing machines using spring power. Illustrations included.
Date: September 28, 1909
Creator: O'Bannon, William H. & Field, James M.
Item Type: Refine your search to only Patent

Tank-Valve.

Description: Patent for tank-valves in which “a valve may be readily detached for renewal or repairs and adaptable without material change of structure to any of the various forms and structures of tanks manufactured.” (Lines 18-22.) Illustration is included.
Date: January 3, 1905
Creator: Burchett, Edward Lee
Item Type: Refine your search to only Patent

Trap-Gun.

Description: Patent for a trap gun, which is placed in a trap and fires when bait is disturbed which will only go off when the bait is tampered with and can turn to follow an animals movements in the trap.
Date: March 24, 1908
Creator: Lovelace, Charles D.
Item Type: Refine your search to only Patent
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