Sheep Run Creek 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 1:24,000
Date: 1968
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

London 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 1:24,000
Date: 1968
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Brewer Hollow 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 1:24,000
Date: 1970
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Julio Draw 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 1:24,000
Date: 1970
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Rust Ranch 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 1:24,000
Date: 1970
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Long Mountain 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 1:24,000
Date: 1970
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Hext 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 1:24,000
Date: 1970
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

East Elm Creek 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 1:24,000
Date: 1970
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Spoon Draw 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 1:24,000
Date: 1970
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

San Augustine Draw 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 1:24,000
Date: 1970
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Calf Creek 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 1:24,000
Date: 1970
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Robbers Roost 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 1:24,000
Date: 1970
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Chapman Draw 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 1:24,000
Date: 1987
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Menard 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 1:24,000
Date: 1987
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Clear Creek Lake 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 1:24,000
Date: 1987
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

McKegan Draw Northeast 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 1:24,000
Date: 1963
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Fort Mckavett 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 1:24,000
Date: 1970
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Fort Mckavett Northeast 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 1:24,000
Date: 1982
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Del Venado Ranch 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 1:24,000
Date: 1991
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Needle Creek 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 1:24,000
Date: 1970
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Callan 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 1:24,000
Date: 1970
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Eden Southeast 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 1:24,000
Date: 1987
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Eden Southwest 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 1:24,000
Date: 1987
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History
Antifriction Clasp. (open access)

Antifriction Clasp.

Patent for a new and improved anti-friction clasp. This design "is to provide means whereby the wear due to the rubbing of inclosed rods or ropes against an inclosing casing may be reduced to a minimum and whereby the central alignment of the rods or ropes with respect to the inclosing casing may be accurately preserved" (lines 11-17). It consists in "a series of friction balls or rollers mounted therein and projecting from the periphery thereof and being divided into sections adapted to be clamped at any point around the rod or rope" (lines 97-101).
Date: October 25, 1892
Creator: Black, William L.
Object Type: Patent
System: The Portal to Texas History