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5 Matching Results
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Cattle-Guard.
Patent for a cattle guard for railroad tracks, which is activated by the pressure of a cow stepping on its platform and raises bars to block the the cow from crossing the track. It goes back down automatically when the pressure is removed off the platform.
Date:
February 2, 1909
Creator:
Crouch, Jim L.
Object Type:
Patent
System:
The Portal to Texas History
Incandescent Lamp
Patent for incandescent lamp. Illustration included.
Date:
December 28, 1909
Creator:
Crutchfield, Charles H. & Deshong, Andrew W.
Object Type:
Patent
System:
The Portal to Texas History
New Boston Quadrangle
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:
1909
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Texarkana Quadrangle
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:
1909
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Rat Trap
Patent for a rat trap. Illustration included.
Date:
December 28, 1909
Creator:
Turnbo, Lycurgus S.
Object Type:
Patent
System:
The Portal to Texas History