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

Parent map for Caldwell County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:15,000.
Date: December 9, 2010
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History
Organ Protector (open access)

Organ Protector

Patent for a new and useful Oran protector "to prevent the entrance of vermin through the Knee-swell slot" ( line 9 - 11).
Date: November 9, 1897
Creator: Oliver, Samuel R.
Object Type: Patent
System: The Portal to Texas History
Disk Cultivator (open access)

Disk Cultivator

Patent for an improved "disk cultivator that will be adapted for the various purposes to which such devices are ordinarily applied. The invention consists in certain details of construction and combination and arrangement of parts" (lines 13-18)
Date: August 9, 1898
Creator: Brock, Andrew L.
Object Type: Patent
System: The Portal to Texas History
Cotton-Chopper. (open access)

Cotton-Chopper.

Patent for a cotton chopper, which cuts faster and more accurately than other models and sends the waste cotton and weeds to one side.
Date: March 9, 1909
Creator: Winkler, Christoph
Object Type: Patent
System: The Portal to Texas History