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3 Matching Results
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Cotton-Chopper
Patent for "a cotton-cultivator which will chop out the superfluous plants and at the same time work up the soil between the rows of plants, the implement being made to straddle the row and produce a fine tilth on both sides thereof" (lines 15-20).
Date:
September 2, 1890
Creator:
Smith, Thomas H.
System:
The Portal to Texas History
Improvement in Two-Horse Equalizers.
Patent for an adjustable device that redistributes weight so that two animals of unequal strength can perform their equal share of work. Includes instructions and illustrations.
Date:
August 2, 1870
Creator:
Sims, Zachariah B.
System:
The Portal to Texas History
Spring-Motor for Fans
Patent for "a device for operating a fan or other object to which it is desirable to give a continuous reciprocating motion" (lines 12-15).
Date:
October 2, 1888
Creator:
Houston, George Webster
System:
The Portal to Texas History