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3 Matching Results
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WRENCH.
Patent for an improved wrench "which can be very quickly adjusted for its work" (lines 13-14), including illustrations.
Date:
October 30, 1900
Creator:
Phenix, William Preston
System:
The Portal to Texas History
Windmill Pipe Attachment
Patent for a windmill pipe attachment that is meant to close the vent opening of a windmill and drain from an opening of the user's choosing.
Date:
December 30, 1919
Creator:
Boerner, Fredrick W.
System:
The Portal to Texas History
Plow
Patent for a plow which plows two furrows simultaneously. An axle is mounted on wheels, and the two adjustable plow beams pivot from the axle so that furrow depth and the width between furrows can be adjusted. Patent includes illustrations.
Date:
November 30, 1920
Creator:
Henderson, Warren H.
System:
The Portal to Texas History