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Improvement in Plaiting-Irons. (open access)

Improvement in Plaiting-Irons.

Patent for an improvement to plaiting-irons: "a plaiting-iron composed of a peculiarly-constructed iron or metal plate used in connection with a correspondingly-constructed board" (lines 23-25), with illustrations.
Date: August 14, 1877
Creator: Gingras, Joseph E.
System: The Portal to Texas History
Rail-Bond. (open access)

Rail-Bond.

Patent for a rail bond that allows an electric current to travel through the rails.
Date: March 14, 1911
Creator: Humason, Granville A. & Odell, Edward F.
System: The Portal to Texas History