Resource Type

Language

Steam Engine. (open access)

Steam Engine.

Patent for a new and improved steam-engine. This design "relates to certain improvements in compound steam-engines; and it has for its objects to lessen friction and provide for the effective working of such engines" (lines 8-11).
Date: September 23, 1884
Creator: Catlin, Eli
System: The Portal to Texas History
Harrow (open access)

Harrow

Patent for a harrow to be used with a cultivator. Illustrations included.
Date: September 5, 1911
Creator: Wolfe, James A.
System: The Portal to Texas History