Resource Type
Counties
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Plow
Patent for an improvement to the plow that allows "for holding the plow-point firmly in position upon the standard or foot without the use of bolts and nuts." (Lines 10-13)
Date:
January 15, 1907
Creator:
Johnson, Thomas J.
System:
The Portal to Texas History
Governor for Steam-Engines.
Patent for a governor for steam-engines that provides "an automatic governing device controlled by the speed, and hence, by the load of the engine, in order to maintain uniformity of movement under variations of load" (lines 10-14).
Date:
January 15, 1895
Creator:
Johnson, Billie
System:
The Portal to Texas History