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 are not available.)
Josiah Warren of Cincinnati is the patentee of a lamp on a new plan. It combines neatness with utility, and possesses one beauty which it is presumed will recommend it to public patronage, viz; to a single family it will produce an annual saving of 20 dollars; to the city of Cincinnati its general introduction would produce an annual saving of 8000 dollars. Its light is clear and pleasant, and the volume of flame equal to that of two common candles. Its structure is such as to fit it equally for the parlour and kitchen.
Cost weekly of a single lamp.
Lard, one pound ……..00.06¼
Per annum §3.51.
“Patent Lamp,” Liberty Hall and Cincinnati Gazette, New Series, 3 no. 221 (April 18, 1921): 3.