Collection
Serial/Series Title
Digital US Topo Maps: 7.5 Minute Series (Topographic)
60
2000 Census County Subdivision Block Map
50
7.5 Minute Series (Topographic)
45
2010 Census County Block Map
40
2010 Census P.L. 94-171 County Block Map
40
1990 Census County Block Map
31
2000 Census County Block Map
30
Digital Raster Graphic Topographic Maps: 7.5 Minute Series (Topographic)
30
Western United States 1:250,000
16
30 Minute Series
10
8 More
Decade
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396 Matching Results
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Protractor.
Patent for a new and improved protractor. This design "is to make a protractor or plotter by which may be calculated the length of the base, perpendicular, and hypotenuse of a right-angled triangle where the latitude and departure or the altitude and depression are given" (lines 15-20). To this end, it consists, "with the semicircular protractor provided with a rectangular opening the edges of which are graduated, and centrally-pivoted vernier, of the departure-scale arranged to move up or down within the said rectangular scale within the semicircular scale" (lines 6-12).
Date:
June 10, 1890
Creator:
Dolman, John H.
Object Type:
Patent
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:
1891
Creator:
Geological Survey (U.S.)
Object Type:
Map
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:
1893
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:
1893
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Automatic Balance Attachment for Windmills.
Patent for an automatic balance device for windmills that attaches to the pump-rod.
Date:
December 23, 1902
Creator:
Terry, Blake
Object Type:
Patent
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:
1903
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Wagon Coupling
Patent for wagon coupling. Illustration included.
Date:
June 14, 1904
Creator:
Keene, Charles Earnest
Object Type:
Patent
System:
The Portal to Texas History
Combination Measuring Instrument
Patent for a combination measuring instrument. Illustration included.
Date:
September 13, 1904
Creator:
Terry, William Blake
Object Type:
Patent
System:
The Portal to Texas History
Sulky Plow
Patent for a sulky plow. This invention is designed to "provide a simple, durable, and highly efficient means for angularly adjusting the rear caster or follower wheel, which runs in the newly-made furrow" (lines 16-19). Illustrations included.
Date:
November 21, 1905
Creator:
Zant, John S.
Object Type:
Patent
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:
1906
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Carriage Bow Support
Patent for a carriage bow support. This invention is designed for use with buggies and absorb shock and jarring motions. Illustration included.
Date:
January 15, 1907
Creator:
Ledbetter, Rufus C.
Object Type:
Patent
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:
1915
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:
1915
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Surgical Instrument.
Patent for speculum instrument used in treating women's sexual and reproductive health with new plunger mechanism for inserting powdered medicines.
Date:
July 18, 1916
Creator:
Finley, Hulon Kirk
Object Type:
Patent
System:
The Portal to Texas History
Cultivator Fender
Patent for cultivator fenders, which will assist in tilling the earth for proper planting methods. This invention will allow for the removal of weeds close to plants without burying the plants in soil.
Date:
November 16, 1917
Creator:
William M. Peel
Object Type:
Patent
System:
The Portal to Texas History
Carpenter's Tool.
Patent for carpenter's tool that has an "adjustable pattern" that can assist in "determining the exact size and configuration of the space in which a stair tread or riser is adapted to be fitted" (lines 9 - 12).
Date:
February 11, 1919
Creator:
McDermett, Jim E.
Object Type:
Patent
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
Aspermont 4-a 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 1:48000
Date:
1925
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Haskell 3-b 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 1:48000
Date:
1925
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Roby 2-b 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 1:48000
Date:
1926
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Snyder 1-a 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 1:48000
Date:
1926
Creator:
Geological Survey (U.S.)
Object Type:
Map
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
Aspermont 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:
1931
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History