Resource Type

Improvement in Spike-Extractors. (open access)

Improvement in Spike-Extractors.

Patent for "an improvement in the class of nail-extractors in which a gripe or grapple formed of pendent springs or hinged jaws is employed." (lines 7-10) including instructions and illustrations.
Date: September 29, 1874
Creator: Devine, William
System: The Portal to Texas History
Improvement in Windmills. (open access)

Improvement in Windmills.

Patent for the improvement of windmills, including illustrations.
Date: September 29, 1874
Creator: Symthe, Peyton.
System: The Portal to Texas History