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Self-Lining Interlocking Building-Block.
Patent for interlocking building-blocks that allow for the formation of strong insulated and properly lined walls without the use of skilled labor and with or without reinforcements.
Date:
July 12, 1921
Creator:
Merren, John Jay
Object Type:
Patent
System:
The Portal to Texas History
Splint
Patent for an improved splint.
Date:
July 3, 1900
Creator:
Hughes, James Gilbert
Object Type:
Patent
System:
The Portal to Texas History
Still for Distillation of Petroleum
Patent for improvements in still design for distillation of petroleum or its products, providing relief for any suddenly formed vapors and preventing the oil from boiling over.
Date:
July 24, 1917
Creator:
Gallsworthy, Benjamin
Object Type:
Patent
System:
The Portal to Texas History
Texas Attorney General Opinion: WW-1383
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Will Wilson, regarding a legal question submitted for clarification: Whether the person appointed by the 136th District Court as Acting Sheriff of Jefferson County should be paid a salary under the stated facts.
Date:
July 12, 1962
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Valve.
Patent for improvements to valves, specifically valves that have a sliding movement on the valve seat and to disk valves. The invention is to provide a valve of this type which is used in the interior of vats, tanks, or similar receptacles containing liquids.
Date:
July 5, 1921
Creator:
Spencer, Elmer H.
Object Type:
Patent
System:
The Portal to Texas History
Vapor Burner
Patent for a vapor burner. Illustration included.
Date:
July 11, 1905
Creator:
Todd, Clarence C.
Object Type:
Patent
System:
The Portal to Texas History
Wave Motor
Patent for an improvement to wave motors, intended to use "the force of waves as motive power for operating machinery" (lines 9-10).
Date:
July 11, 1911
Creator:
Ford, William W.
Object Type:
Patent
System:
The Portal to Texas History