Mijnlamp Koehler MI G CO Marlboro Mass USA

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FLAME SAFETY LAMP
Koehler MI G CO
Marlboro mass USA

Onderstaand een tekst The Wood Library-Museum of Anesthesiology (WLM) Why would a miner’s safety lamp be in a museum of anesthesiology? Sir Humphry Davy, the chemist who expanded our knowledge of nitrous oxide and first suggested its use to reduce the pain of surgery, also invented a miner’s safety lamp.
“Fire-damp,” a term used for methane gas in a mine, is a colorless and odorless gas that can trigger deadly mine explosions. The design of Davy’s lamp, introduced in 1815, was based on his discovery that a flame surrounded with a thin iron mesh would not ignite gas beyond the mesh, and thus not trigger mine explosions. Other notable inventors of safety lamps included Irishman William Reid Clanny and Englishman George Stephenson.
Manufacturers of flame lamps combined the best design features from the Davy Lamp and others, producing a variety of safety lamps. New designs continued to be introduced into the early 1900s, including this lamp made by the Koehler Manufacturing Company of Marlborough, Massachusetts.
A safety lamp made by Koehler in 1918 was the first miner’s lamp to be approved by the United States Bureau of Mines. The new Koehler lamp was supposed to generate more light than other lamps and produce clearer results when testing the air in a mine. Flames burned higher and with a blue tint when methane was present, while the flame would diminish in the presence of carbon dioxide. Flame-based miners’ safety lamps continued to be manufactured into the 1930s.