P.L. 94-171 County Block Map (2010 Census): Colorado County, Block 23

Parent map for Colorado County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:17,000.
Date: December 10, 2010
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

P.L. 94-171 County Block Map (2010 Census): Colorado County, Block 26

Parent map for Colorado County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:17,000.
Date: December 10, 2010
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

P.L. 94-171 County Block Map (2010 Census): Colorado County, Block 19

Parent map for Colorado County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:17,000.
Date: December 10, 2010
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

P.L. 94-171 County Block Map (2010 Census): Colorado County, Block 14

Parent map for Colorado County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:17,000.
Date: December 10, 2010
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

P.L. 94-171 County Block Map (2010 Census): Colorado County, Index

Index map for Colorado County, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:121,797.
Date: December 10, 2010
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

P.L. 94-171 County Block Map (2010 Census): Colorado County, Block 13

Parent map for Colorado County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:17,000.
Date: December 10, 2010
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

P.L. 94-171 County Block Map (2010 Census): Colorado County, Block 20

Parent map for Colorado County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:17,000.
Date: December 10, 2010
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History
Improvement in Rotary Cultivators. (open access)

Improvement in Rotary Cultivators.

Patent for a machine for "opening ditches to drain land and form fences, and to grade railroads, &c." (lines 15-17) including illustrations and instructions.
Date: October 10, 1876
Creator: Tadlock, Sevier
Object Type: Patent
System: The Portal to Texas History
Triple Valve for Fluid-Pressure Brakes. (open access)

Triple Valve for Fluid-Pressure Brakes.

Patent for a triple valve for fluid-pressure brakes in trains that prevents accidental triggering of the emergency brakes.
Date: October 10, 1911
Creator: Robinson, John W. & Douglas, Frank L.
Object Type: Patent
System: The Portal to Texas History
Exhaust-Steam-Actuating Damper-Regulator. (open access)

Exhaust-Steam-Actuating Damper-Regulator.

Patent for exhaust-steam-actuating damper-regulator, including instructions and illustrations. This invention improves oil burning equipment for locomotives by "operating the dampers of the air inlet box to automatically close the dampers when the locomotive is standing and to open the dampers when the locomotive is running." (lines 12-16).
Date: July 10, 1917
Creator: Gilman, Benoist P.
Object Type: Patent
System: The Portal to Texas History