The drawing in the margin is taken from Letters Patent 20,977 dated July 20, 1858. The patent was granted to Mark Safford of Boston, Massachusetts and was assigned to himself and George P. Kinney, also a resident of Boston. In the 1860 U.S. Federal Census, Safford, then aged 42 years, listed his occupation as "machinist."
Safford & Kinne's Patent Hydro-Carbon Vapor Lamp. Each burner is regulated, by a touch of the hand, to burn two, four, or six brilliant jets. Six jets will burn an hour at a cost of one cent; or two small jets all night for a cent, making a saving of 25 per cent over any other way of burning the fluid. Any concussion or breakage of the lamp will immediately extinguish the light, which renders the Lamp the safest known kind for the purpose designed.While it seems unlikely that the extinguisher (on the vapor burner) would have worked as flawlessly as the advertisement claimed, it appears as though the burner would have been easily adjustable to regulate
The lamps featuring the Safford & Kinne's vapor burners were being sold by G.D. Jarves & Cormerais, 51 Federal Street, Boston, which notes them as "General agents for the sale of burners, lamps and rights." It is interesting to note that Kinney's name is spelled "Kinne" in the advertisement. The author is uncertain which spelling is correct, but would wager that the one in the advertisement is the correct version. George D. Jarves and Henry Cormerais had been in business in Boston since at least 1850 as they are listed in the Boston City Directory that year. They are listed as glass merchants. They also had a store in New York City. Trow's New York City Directory for the year ending May 1, 1857 lists them as located at 81 Fulton Street. The one-line entry lists "platedware" as their main line. In 1859 NYC Directory they are listed under "Gas Fixture Makers" at 113 William Street.
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