6 Matching Results
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Wall Construction
Patent for a relatively simple constructed wall that is built using concrete slabs. It is constructed in a manner that requires less material thus resulting in a wall that is hollow all the while providing sufficient strength to hold weight and pressure. Includes illustrations.
Date:
April 19, 1921
Creator:
Needham, Edward F.
System:
The Portal to Texas History
Washing-Machine
Patent for an improved clothes containing basket within washing machines that is longer-lasting and less likely to become imbalanced. The device increases agitation of clothes and water.
Date:
April 19, 1921
Creator:
Seifert, John W.
System:
The Portal to Texas History
Concrete Building Mold.
Patent for Concrete Building Mold that is composed to be able to be detachable and reversible.
Date:
June 14, 1920
Creator:
Rossiter, Jay A
System:
The Portal to Texas History
Process of Distilling Hydrocarbons
Patent for distilling hydrocarbons from crude petroleum oil.
Date:
April 19, 1921
Creator:
Averill, Willard C., Jr.
System:
The Portal to Texas History
Grapple for Oil-Wells and the Like.
Patent for an improved grapple device that can help recover rigging parts from oil wells, including illustrations.
Date:
April 19, 1921
Creator:
Reed, Clarence E.
System:
The Portal to Texas History
Reamer.
Patent for rotary reamers for progressively enlarging holes in pilot drills, particularly roller disk type reamers used in oil, water, or mining applications.
Date:
April 19, 1921
Creator:
Humason, Granville A.
System:
The Portal to Texas History