Tier. (open access)

Tier.

Patent for a retractable and reusable package tie device for packages.
Date: December 21, 1915
Creator: Clary, Irvin W.
System: The Portal to Texas History
Multiple Gearing (open access)

Multiple Gearing

Patent for a new and useful improvements in multiple gearing. This invention "relates to improvements in a multiple gearing for bicycles, vehicles, locomotive-engines, traction devices" (line 11-13).
Date: December 21, 1897
Creator: Cary, Lewis C.
System: The Portal to Texas History
Process of Vaporizing Liquids. (open access)

Process of Vaporizing Liquids.

Patent for an engine designed for combustion of kerosene with air. The patent notes improvements for regulating the mixture ratios and maximizing efficiency by heating the air intake.
Date: December 21, 1920
Creator: McClintock, Charles Davis
System: The Portal to Texas History
Door Brace (open access)

Door Brace

Patent for a door brace. Illustration included.
Date: December 21, 1909
Creator: Friberg, Charles
System: The Portal to Texas History
Automatic Train-Stop. (open access)

Automatic Train-Stop.

Patent for mechanism to automatically sound alarm and shut off steam when a train passes a danger point.
Date: December 21, 1915
Creator: Bulla, Melbern Bernie
System: The Portal to Texas History