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Method of Marking the Keys of Key-Boards for Musical Instruments

Description: Patent for "a system of musical notation in which the several notes or note-symbols are shaped so as to approximate in appearance the shape of the letters from which they derive their appellations" (lines 37-41) especially in relation to piano-fortes, organs, and keyed instruments and in teaching music, including instructions and illustrations.
Date: June 29, 1880
Creator: Black, Jane B. D.
Partner: UNT Libraries Government Documents Department

Spark-Arrester.

Description: Patent for Spark-Arrester. The author claims his invention catches sparks and throws them to the bottom of the chamber to the discharge pipe. Used in locomotive smoke stacks.
Date: October 12, 1880
Creator: Swan, Robert F.
Partner: UNT Libraries Government Documents Department
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