Balanced Piston Engine. (open access)

Balanced Piston Engine.

Patent for a new and improved balanced-piston engine. This design "relates to that class of steam or other engines which are constructed with two pistons receiving the pressure in opposite directions, each connected with cranks set at opposite positions, whereby the strain occurs simultaneously in opposite directions upon the crank-shaft and balances the same within its bearings, and thus obviates great friction on the journals and thereby economizes power" (lines 7-15).
Date: February 15, 1881
Creator: Peebles, William D.
Object Type: Patent
System: The Portal to Texas History
Texas Attorney General Opinion: O-5741 (open access)

Texas Attorney General Opinion: O-5741

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Grover Sellers, regarding a legal question submitted for clarification: Payment by Stephens County of federal excise tax on tires and tubes.
Date: February 8, 1944
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Stirrup-Spur. (open access)

Stirrup-Spur.

Patent for a certain new and useful improvement in stirrup spurs, including instructions and illustrations.
Date: February 27, 1900
Creator: Coleman, Thomas G.
Object Type: Patent
System: The Portal to Texas History

Possum Kingdom State Park

This is an illustrated map for the Possum Kingdom State Park located near the town Caddo in Stephens County, Texas. The map shows the access routes, trails, camp sites, and the legend shows the location of the parks amenities. The map also provides information for future park visitors.
Date: February 2013
Creator: Texas. Parks and Wildlife Department.
Object Type: Map
System: The Portal to Texas History
Boll-Weevil Exterminator. (open access)

Boll-Weevil Exterminator.

Patent for Boll-Weevil Exterminator. Aims to provide a novel and improved apparatus for gathering the boll weevil and squares by air suction to catch insects and pests.
Date: February 5, 1918
Creator: Harrison, James H.; Hall, Samuel E. & Gholson, John M.
Object Type: Patent
System: The Portal to Texas History