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4 Matching Results
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Coleman Sheet
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:
1911
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Steam-Turbine for Locomotives.
Patent for a compact mechanism related to steam turbines, which has positive geared connections with the driving access of the locomotive, resulting in reduced friction. This increases efficiency of the driving action while reduced the expenditure of elastic fluid in order to run smoothly.
Date:
December 5, 1911
Creator:
Dumas, Joel Benjaman
Object Type:
Patent
System:
The Portal to Texas History
Gin Saw Cleaner
Patent for a gin saw cleaner. Illustration included.
Date:
March 28, 1911
Creator:
Pillow, James G.
Object Type:
Patent
System:
The Portal to Texas History
Safety-Valve for Pneumatic Tires.
Patent for a safety valve for pneumatic tires that prevents the tire from exploding from excess pressure.
Date:
October 3, 1911
Creator:
Burkett, Bruce
Object Type:
Patent
System:
The Portal to Texas History