1821

  Josiah Warren, of Cincinnati, is the patentee of a lamp on a new plan, which is said, to a single family, will produce an annual saving of 20 dollars. Its light is clear and pleasant, and the volume of flame equal to that of two common candles. ⁂ “Weekly Summary,” The Plough Boy, and Journal of the Board of Agriculture 2 no. 52 (May 26, 1821): 415. Warren, Josiah on February 20, 1821 #X003303 improvement in lamps for burning fat Cincinnati, OH (These patents were apparently destroyed in a fire at the U.S. Patent office in 1836, so images […]