Valve for explosive-engines. (open access)

Valve for explosive-engines.

Patent for an improved valve for use in explosive engines which lists the movements of various parts in order to allow air and fuel to mix and explode.
Date: February 2, 1914
Creator: Ray, Albert J.
System: The Portal to Texas History
Feeding Mechanism For Printing Press (open access)

Feeding Mechanism For Printing Press

Patent for "an improved mechanism whereby the paper or other material is automatically fed to the press in web or continuous form and automatically cut off in the desired lengths as it passes from the feeding mechanism" (lines 23-26).
Date: June 2, 1914
Creator: Prescott, Sitwell
System: The Portal to Texas History