Resource Type
Counties
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Windmill-Oiler.
Patent for a windmill oiler to automatically pump oil of the proper amount to lubricate the windmill bearings which is placed on the windmill head.
Date:
March 17, 1908
Creator:
Brown, Herbert Eddes
System:
The Portal to Texas History
Spike.
Patent for a railroad spike "which can be used in soft-wood ties." (lines 15-16) including description and illustrations.
Date:
September 17, 1901
Creator:
Teele, John W.
System:
The Portal to Texas History