Resource Type
Counties
3 Matching Results
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Improvement in Windmills.
Patent for an improved windmill, including illustrations, consisting of an arrangement of "three stationary sails between arms on central shaft, so as to obtain double or increased power from the air passing through the wheel." (lines 7-10)
Date:
December 2, 1879
Creator:
Dewees, Thomas
System:
The Portal to Texas History
Improvement in Molds for Sewer-Building.
Patent for a collapsible mold on wheels, allowing a sewer to "be built in sections around the mold and the mold moved along the trench as sections are completed" (lines 13-16) including illustrations.
Date:
December 23, 1879
Creator:
Burns, James
System:
The Portal to Texas History
Improvement in Adjustable Hats.
Patent for a mechanism improving the ability to adjust the shape of a hat to fit different sized heads. The patent is for an "adjustable attachment for enlarging and contracting" the hat's design.
Date:
August 30, 1873
Creator:
Cassiano, Ygnacio I.
System:
The Portal to Texas History