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Improvement in Car-couplings
Patent for "an automatic car-coupling, that may also be readily coupled with the common pin-and-link and other couplings, and be adjusted without going between the cars, so as to avoid all danger" (lines 14-18).
Date:
August 24, 1875
Creator:
Harper, Peter
System:
The Portal to Texas History
Improvement in Plows.
Patent for "plow mold-boards to which the black land of Texas, and other similar soils, will not adhere, so that a furrow can be turned, however sticky and waxy the soil may be." (lines 14-18) including instructions and illustrations.
Date:
May 18, 1875
Creator:
Bell, Francis R.
System:
The Portal to Texas History