Cotton-Chopper. (open access)

Cotton-Chopper.

Patent for a cotton chopper that connects to other machines, such as cultivators.
Date: April 22, 1913
Creator: Jones, Martin A.
System: The Portal to Texas History
Improvement in Pulverizing Subsoil-Plows. (open access)

Improvement in Pulverizing Subsoil-Plows.

Patent for an improvement in subsoil plows to pulverize soils, including illustrations.
Date: September 22, 1874
Creator: Mangham, Josiah T.
System: The Portal to Texas History
Sash Fastener (open access)

Sash Fastener

Patent for a window sash fastener. Illustration included.
Date: November 22, 1904
Creator: Clements, John H.
System: The Portal to Texas History
Plow. (open access)

Plow.

Patent for "new and useful improvements in plows; and it has for its object the production of simple and highly-efficient means for regulating the depth and penetration of the plowshare in all kinds and conditions of soil." (Lines 10-15) Includes instructions and illustrations.
Date: October 22, 1895
Creator: Sinclair, James & Sellers, John
System: The Portal to Texas History