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13 Matching Results
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Break-Out Pin.
Patent for a modified break-out pin on an oil derrick which makes it easier to release a wrench for unscrewing pipes when done, but still holds the wrench in place while in use.
Date:
October 21, 1919
Creator:
Headrick, James O.
System:
The Portal to Texas History
Apparatus for Separating or Concentrating Ores.
Patent for an improvement to hydraulic separators used in frothing classification to increase the recovery of larger mineral particles.
Date:
October 21, 1919
Creator:
Cole, David
System:
The Portal to Texas History
Machine for Buffing Inner Tubes and the Like.
Patent for a more efficient and adjustable machine to buff inner tubes and other fabrics.
Date:
October 21, 1919
Creator:
Hibbs, Cassell D.
System:
The Portal to Texas History
Windmill.
Patent for a windmill with vanes that can compensate for varying wind speeds without being damaged by high winds.
Date:
October 21, 1919
Creator:
Ochoa, Victor Leaton
System:
The Portal to Texas History
Store Furniture
Patent for a piece of furniture that can hold rolls wrapping paper of various size. The rolls are contained in a device that rotates and allows the user to select and easily pull paper from roll.
Date:
October 21, 1919
Creator:
Nicks, John H.
System:
The Portal to Texas History
Tool-Heater
Patent for tool heaters "adapted to heat a soldering iron by gas" (lines 9-10) to increase the heat applied to the tool, including illustrations.
Date:
October 21, 1919
Creator:
Juergens, Ernest
System:
The Portal to Texas History
Measuring, Weighing, and Registering Machine.
Patent for machine that automatically weighs cotton seed while in transit from the cotton gin or grain from the grain elevator to the mill.
Date:
October 21, 1919
Creator:
Muirhead, Alfred Robert
System:
The Portal to Texas History
Center Rail for Key-Actions.
Patent for an easily adjustable, simple, and durable center rail for key actions in pianos which does not require chiseling holes.
Date:
October 21, 1919
Creator:
Swallow, Oscar L.
System:
The Portal to Texas History
Plow
Patent for a modification of a plow that improves ease of use. Additionally the plow adds wings that allow plowing of soil at different angles.
Date:
October 21, 1919
Creator:
Richardson, William T.
System:
The Portal to Texas History
Sampling Device
Patent for a machine that will remove samples from a well during drilling operations.
Date:
October 21, 1919
Creator:
Dodds, Redus D.
System:
The Portal to Texas History
Power-Jack.
Patent for improvements on the power-jack, which help bring liquids to the surface. Specifically designed "to provide a power mechanism for balancing the load or work at all points of the stroke." (lines 11-13), including illustrations.
Date:
October 21, 1919
Creator:
Dayton, William L.
System:
The Portal to Texas History
Mold for Forming Walls and Floors
Patent for mold to create walls and floors. This mold creates walls and floors that are air and sound proof.
Date:
October 21, 1919
Creator:
Murdock, Walter Scott
System:
The Portal to Texas History
Cotton-Delinter
Patent for a durable and inexpensive machine that remove cotton seed from lint.
Date:
October 21, 1919
Creator:
Young, Edwin H.
System:
The Portal to Texas History