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6 Matching Results
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Swingletree
Patent for a swingletree that equalizes the strain of the draft animal when the traces are connected in an irregular manner.
Date:
July 20, 1920
Creator:
Bosse, William F.
Object Type:
Patent
System:
The Portal to Texas History
The San Angelo Formation [and] The Geology of Foard County
Two reports published in a scientific bulletin, describing the San Angelo Formation and the geology of Foard County.
Date:
February 15, 1926
Creator:
Christner, D. D. & Beede, J. W.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Anson 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:
1921
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Roby 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:
1922
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Reagent for Liquid-Battery Cells.
Patent for a method of producing a "cheap and efficient substitute for copper sulfate for use in battery cells" (lines 14-16).
Date:
April 19, 1921
Creator:
Humphrey, David L. & Pittman, Carl L.
Object Type:
Patent
System:
The Portal to Texas History
Cotton-Picker's Sack.
Patent for improvements to Cotton-Picker's Sacks "to permit the bag or sack to be opened longitudinally to permit quick and convenient emptying of the contents thereof" (lines 12-15).
Date:
March 1, 1921
Creator:
White, Benjoman Henry
Object Type:
Patent
System:
The Portal to Texas History