Wheat lamp
A wheat lamp is a type of
underground mining, named for inventor Grant Wheat and manufactured by Koehler Lighting Products in Wilkes-Barre, Pennsylvania, United States, a region known for extensive mining activity.[1][2]
A
amp-hour capacity of the battery and the current draw of the bulb being used.[3]
A grain-of-wheat lamp is an unrelated, very small
miniature railroad
and similar models.
References
- ^ City of Marlborough, retrieved July 7, 2011.
- ISBN 1457184435. Chapter 23, first page.
- ^ L. C. Isley, A. B. Hooker, Permissible Electric Mine Lamps, US Department of Commerce Bulletin No. 332, 1930, pp. 32-34
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