Wrench. (open access)

Wrench.

Patent for a nut-wrench capable of tightening different sized nuts. The lower jaw of the wrench has different levels, the overall effect being that of a staircase, while the upper jaw is flat with a bite that holds the nuts in place.
Date: December 15, 1896
Creator: Tiner, John F.
System: The Portal to Texas History
Fuel-Supply System and Starter for Explosive-Engines. (open access)

Fuel-Supply System and Starter for Explosive-Engines.

Patent for "improvements in the fuel supply system for explosive engines." (Lines 9-10). Improvements include, utilization of the heat of exhaust gases to vaporize liquid fuel, so that the carburetor and other devices are not necessary.
Date: December 15, 1914
Creator: Lowry, Benjamin F.
System: The Portal to Texas History
Fuel Produced From Lignite. (open access)

Fuel Produced From Lignite.

Patent for the process by which fuel is created from lignite coal.
Date: March 16, 1891
Creator: Edelmann, Albert
System: The Portal to Texas History