UNT Libraries Government Documents Department - 4 Matching Results

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Boiler Feeder

Description: Patent for a boiler feeder. This invention is intended to be placed above the boiler and via a regulator supplies water to the boiler.
Date: November 24, 1903
Creator: Herrington, William
Item Type: Refine your search to only Patent

Stand-Value for Oil-Well Pumps.

Description: Patent for a Stand-Value for Oil-Well Pumps so that the ball seat in an oil well pump does not work loose. This is also meant to be turned end for end so that the part's life is lengthened. With this being done, the utility of the oil-pump should now be enhanced.
Date: September 24, 1918
Creator: Slaughter, George W., Jr.
Item Type: Refine your search to only Patent
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