Rotary Steam-Engine. (open access)

Rotary Steam-Engine.

Patent for the improvement of the rotary engine through the arrangement of passages and system of pistons for a more simple construction with little friction, including illustration.
Date: August 16, 1859
Creator: Montjoy, George J. & Sawyer, J. B.
System: The Portal to Texas History
Improvement in Cotton and Hay Presses. (open access)

Improvement in Cotton and Hay Presses.

Patent for the "improvement in Horizontal Cotton - Presses for compressing cotton, hay, and other articles and substances for baling; ..." (lines 3-6), including illustrations.
Date: July 5, 1859
Creator: Stockbridge, Elam
System: The Portal to Texas History
Improvement in Fish-Hooks. (open access)

Improvement in Fish-Hooks.

Patent for "new and useful improvement in the Sockdolager Fish-Hook" (lines 4-5), including illustration.
Date: April 11, 1854
Creator: Sigler, Henry
System: The Portal to Texas History
Valve-Gear for Steam-Engines. (open access)

Valve-Gear for Steam-Engines.

Patent for improving the cut-off of steam-engines through a simple valve motion, including illustration.
Date: July 30, 1850
Creator: Milner, George B.
System: The Portal to Texas History