Improvement in Tents. (open access)

Improvement in Tents.

Patent for certain new and useful improvements in military tents that relates to folding tents including illustrations.
Date: April 8, 1873
Creator: Turner, Ephraim M.
System: The Portal to Texas History
Improvement in Cotton-Presses. (open access)

Improvement in Cotton-Presses.

Patent for an improved Cotton-Press that will grant double work from an applied power, including illustrations.
Date: April 8, 1879
Creator: Matthews, James Hamilton. & Morehead, Charles Robert, Jr.
System: The Portal to Texas History
Valve-Lifter (open access)

Valve-Lifter

Patent for an improved device that can be applied to a valve spring plate without losing grip.
Date: April 8, 1920
Creator: Chaney, Robert
System: The Portal to Texas History