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Port-Regulating Valve. (open access)

Port-Regulating Valve.

Patent for a port-regulating valve. It is meant for use in steam-engines and regulates the steam in engines that the inventor had previously patented (No. 523,360). "The invention consists of a slide-valve for covering each port leading from the steam-chest to the rock-valve, with means for operating such slide-valves from the shaft controlling the rock-valve, and a link movement for adjusting the throw of the slide-valves and which is under the control of the engineer" (lines 21-28).
Date: August 27, 1895
Creator: Lester, Frank
System: The Portal to Texas History