Sliding Valve for Steam-Engines or the Like
Description:
Patent for a sliding valve for steam-engines or the like that is "simpler, less expensive, and otherwise more convenient and advantageous for use" (lines 21-24) including an illustration and instructions.
Date:
June 8, 1915
Creator:
Williamson, Jason & Williamson, Elmer
Partner:
UNT Libraries Government Documents Department