Collection
Serial/Series Title
4 Matching Results
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4
Montague 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:
1920
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Well-Drill Wrench.
Patent for use with oil well drills to enable easier rotation and less friction. The invention aids in quick and easy adjustments to oil well parts.
Date:
January 6, 1920
Creator:
Ellinger, William H.
Object Type:
Patent
System:
The Portal to Texas History
Wire-Stretcher.
Patent for a wire stretcher which includes attachments for pulling the ends of a broken strand of wire together so that it can be repaired, in addition to the usual function of stretching wire thereby taking up slack in unbroken wire strands when erecting fences. The device also "requires a minimum amount of labor in its operation and in which the force employed is exerted in the direction of the line of the wire" (lines 20-23).
Date:
September 14, 1920
Creator:
Stephens, William B.
Object Type:
Patent
System:
The Portal to Texas History
Cotton-Chopping Machine
Patent for a cotton "wheeled cultivator" (line 14-15) attachment which allows users to make adjustments to the cultivator blades, including illustrations.
Date:
April 13, 1920
Creator:
Sims, James G.
Object Type:
Patent
System:
The Portal to Texas History