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Apparatus for Building Concrete Structures.
Patent for an apparatus for building concrete structures that includes the method or process of erection.
Date:
November 14, 1922
Creator:
Sands, Edward E.
System:
The Portal to Texas History
Valve.
Patent for a valve, comprised of a valve seat and a moving part that is made in such a way as to minimize wear and tear. The seat, which attaches to the pump stem, supports the value stem, which is then covered by a thimble that supports a rubber disk. This rubber disk helps prevent liquid and sand from wearing against the valve stem.
Date:
November 14, 1911
Creator:
Wintz, Thornton E.
System:
The Portal to Texas History
Support for Compasses
Patent for a support for compasses used for railway coaches. Illustrations included.
Date:
November 14, 1911
Creator:
Ely, William S.
System:
The Portal to Texas History
Automobile Headlight.
Patent for an improved automobile headlight equipped with a movable lens and reflector to cast light down towards the roadway.
Date:
November 14, 1922
Creator:
Head, James M.
System:
The Portal to Texas History