Furnace. (open access)

Furnace.

Patent for a furnace or a boiler with an improved metal back plate instead of the usual brick arch. The back plate has flanged sections bolted together, and asbestos between the sections of the plate.
Date: December 10, 1895
Creator: Moran, James
System: The Portal to Texas History
Automatic Fire Extinguisher. (open access)

Automatic Fire Extinguisher.

Patent for a new and improved fire extinguisher. This design is "to provide for automatically putting out a fire in any building in which [the] apparatus may be located, upon the temperature in said building or room reaching any predetermined degree. This result is accomplished by the action of an expansible fluid—such as mercury—in a contained vessel, which actuates certain . . . mechanism, causing the structure to be flooded with water or with a fire-extinguishing gas or fluid" (lines 22-32).
Date: December 30, 1890
Creator: Fuller, Wily Scott
System: The Portal to Texas History
Motor-Vehicle for Traversing Marsh-Lands. (open access)

Motor-Vehicle for Traversing Marsh-Lands.

Patent for a steerable motor vehicle that can be driven in marshlands.
Date: December 20, 1921
Creator: Ray, Malcolm
System: The Portal to Texas History
Saw-Swage (open access)

Saw-Swage

Patent for " a certain new and useful Saw-Swage." (Lines 5-6) including illustrations.
Date: December 24, 1901
Creator: Davis, James E.
System: The Portal to Texas History