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Improvement in Windmills
Patent for the improvement of wind mills, that includes a detailed description as well as labeled figure drawings.
Date:
May 20, 1873
Creator:
Jackson, Thomas R.
System:
The Portal to Texas History
Improvement in Jack-Screws and Clamps Combined.
Patent for an invention "to combine a jack-screw or lifting-jack with a clamp, so that they may be interchangeably used." (Lines 19-21) Includes instructions and illustrations.
Date:
May 20, 1873
Creator:
Jackson, Thomas R.; Jackson, Asberry C. & Watson, Claudius S.
System:
The Portal to Texas History