UNT Libraries Government Documents Department - 8 Matching Results

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Crude-Oil Burner.

Description: Patent for an improvement on a crude oil burner that can adapt to various grades of crude oil as well as providing intense heat to various sizes of boilers.
Date: May 11, 1920
Creator: Runyan, Benjamin F.
Item Type: Refine your search to only Patent

Pump

Description: Patent for a pump that can be "cleansed of sand and other foreign matter" which may cause an obstruction or interference "with the operation of the pump valve" (lines 13-15).
Date: May 28, 1920
Creator: Johnson, John L.
Item Type: Refine your search to only Patent

Pump-Piston.

Description: Patent for an improved pump piston used to pump oil from deep wells. The main improvement in this piston is that it is less susceptible to damage from sand or sediment by keeping sediment out of the piston valve, thus preventing it from accruing any long term damage that may render the piston irreparable. This design is also capable of fixing any wear due to sand or grit without removing the piston from the well.
Date: May 4, 1920
Creator: Coulson, William J.
Item Type: Refine your search to only Patent

Pump-Plunger

Description: Patent for an improvement in Pump-Plungers. "It has a particular application to pumps of this character for use in oil or water wells where the liquid is mixed with sand" (lines 13-16), including illustrations.
Date: May 4, 1920
Creator: Mackenzie, Alexander S.
Item Type: Refine your search to only Patent

Rudder-Bar for Aeroplanes.

Description: Patent for improvement in aeroplanes, especially to the steering mechanism which allows for the rudder to be locked in position so the aviator can remove their feet from the steering bar.
Date: May 25, 1920
Creator: McMullen, William H.
Item Type: Refine your search to only Patent

Stamping Machine.

Description: Patent for improvements to stamping-machines used for the purposes of marketing nuts. The device can efficiently perform the laborious act of stamping individual nuts with a trademark. It can be adjusted to stamp nuts of any size, along with other similar objects, without breaking or injuring the nut.
Date: May 4, 1920
Creator: Wischhesen, Frederick B.
Item Type: Refine your search to only Patent
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