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Automatic Flame-Regulator
Patent for a simple mechanical means of automatically maintaining a desired temperature within an incubator lamp.
Date:
September 25, 1917
Creator:
Krizan, Joseph, Jr.
Object Type:
Patent
System:
The Portal to Texas History
Primary Care Case Management Primary Care Provider and Hospital List: High Plains, September 2011
List of Primary Care Case Management program approved primary care providers, hospitals, specialists, and family planning providers, located in the High Plains area of Texas.
Date:
September 2011
Creator:
Primary Care Case Management
Object Type:
Book
System:
The Portal to Texas History
Rotary Valve for Steam-Engines.
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
Object Type:
Patent
System:
The Portal to Texas History