Resource Type

Month

Vegetable-Cutter (open access)

Vegetable-Cutter

Patent for a vegetable cutter. Illustrations included.
Date: June 22, 1909
Creator: Spacek, Joseph P.
System: The Portal to Texas History
Valve-Gear for Engines. (open access)

Valve-Gear for Engines.

Patent for a valve gear for steam engines that can reverse or stop the rotation of the engine shaft, with illustrations.
Date: June 19, 1906
Creator: Hanser, Joseph
System: The Portal to Texas History