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10 Matching Results
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Valve Structure for Oil-Wells.
Patent for Valve Oil-Wells. This improved Valve Oil Well will increase efficiency and durability of device.
Date:
September 19, 1919
Creator:
McEvoy, John Philip
System:
The Portal to Texas History
Well Pumping Apparatus
Patent for well pumping apparatus. This invention is designed for the improvement of pumping liquid from deep wells. Illustration included.
Date:
September 29, 1908
Creator:
Stephenson, William M.
System:
The Portal to Texas History
Mechanical Toy Hoop
Patent for improved features for mechanical toy hoops, particularly for toys utilizing trundling hoops.
Date:
September 5, 1916
Creator:
Giesecke, Leo
System:
The Portal to Texas History
Hydraulic Swivel
Patent for a hydraulic swivel. Illustrations included.
Date:
September 26, 1905
Creator:
Thomson, Alexander & McLaughlin, Malacha Joseph
System:
The Portal to Texas History
Stand-Value for Oil-Well Pumps.
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.
System:
The Portal to Texas History
Nut-Lock
Patent for a nut lock. Illustrations included.
Date:
September 6, 1910
Creator:
Lance, Andrew M.
System:
The Portal to Texas History
Engine Valve Mechanism
Patent for an engine valve mechanism. This invention is a "class of steam engines wherein the cylinder-inlet and exhaust-ports are controlled by separate and distinct values." Illustration included.
Date:
September 5, 1905
Creator:
Moore, Ezra G. & Moore, Frank T.
System:
The Portal to Texas History
Screw-Gearing
Patent for screw-gearing for motors, particularly motors for fans or similar objects, including illustrations.
Date:
September 18, 1900
Creator:
Paker, Oren A.
System:
The Portal to Texas History
Spring-Wheel
Patent for a wheel supported by spring spokes. Illustrations included.
Date:
September 24, 1912
Creator:
Hudson, Alexander S.
System:
The Portal to Texas History
Plunger.
Patent for a plunger for water and oil wells, which will withstand heavy use.
Date:
September 14, 1909
Creator:
Karnes, Harry E.
System:
The Portal to Texas History