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Automatically-Operated Gate and Door
Patent for improvements on automatically opened doors and gates for vehicular passing. The improvements will allow the automatic opening of gates and doors without human attention or interference.
Date:
April 9, 1921
Creator:
Brown, George W.
System:
The Portal to Texas History
Garment-Hanger.
Patent for a garment hanger "for the support of outer garments...and which will also embody a rack for shoes, the hanger being so constructed that it will occupy a minimum amount of space..." also "to support a considerable weight without any likelihood of sagging or breakage...that the greater the weight imposed thereon, the more firm will be the connection between these parts" (lines 11-15, 21-28). It also includes an illustration.
Date:
August 9, 1921
Creator:
Fulford, Marcus F.
System:
The Portal to Texas History
Derrick.
Patent for improvements to derricks for oil wells.
Date:
June 9, 1920
Creator:
Babek, Frank
System:
The Portal to Texas History