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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
System:
The Portal to Texas History
Hoisting Drum.
Patent for an invention that "relates to improvements in hoisting drums" (line 15-16). Structure, objective, and illustrations of hoisting drums are included.
Date:
July 3, 1917
Creator:
Howard, Henry Fischer
System:
The Portal to Texas History