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Boiler Attachment
Patent for improvements in boiler attachments, to produce a thermostatic device of simple and improved construction which may be utilized for the purpose of actuating a valve governing the steam supply to the pump or the injector.
Date:
June 28, 1913
Creator:
Priester, Joel Ellis
System:
The Portal to Texas History
Incubator Alarm
Patent for incubator alarm in which an audible signal will be triggered when the temperature of the incubator is above or below the normal predetermined degree.
Date:
June 10, 1913
Creator:
Kelley, Clyde W.
System:
The Portal to Texas History