Fire-Clay Charcoal-Furnace (open access)

Fire-Clay Charcoal-Furnace

Patent for fire clay charcoal furnace. "The object of the invention is to provide a furnace of this character which shall be simple of construction, durable in use, comparatively inexpensive of production, and efficient in action" (lines 13-17).
Date: December 9, 1902
Creator: Koch, Charles Jean
System: The Portal to Texas History
Cattle Guard. (open access)

Cattle Guard.

Patent for improvements and new features to cattle guards on railways, including illustrations.
Date: September 16, 1902
Creator: Miller, Martin L.
System: The Portal to Texas History