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Automatic Flame-Regulator

Description: Patent for a simple mechanical means of automatically maintaining a desired temperature within an incubator lamp.
Date: September 25, 1917
Creator: Krizan, Joseph, Jr.
Partner: UNT Libraries Government Documents Department

Rotary Valve for Steam-Engines.

Description: Patent for a rotary valve for steam-engines that has a simplified valve and less pressure on the valve. It has a rocking valve that is "operating within a steam chest independent of the cylinder and connected therewith by pipes entering through the cylinder ends, a cam movement being provided for rocking the valve" (lines 21-25).
Date: September 18, 1894
Creator: Lester, Frank
Partner: UNT Libraries Government Documents Department