More Uses for Acetylene Gas.
•» The Militar-Wochenblatt publishes a description of a portable acetylene field search-light, invented by Lieutenant von Kries, of the German army. It is intended to be used at night in searching for the wounded on thebattlefield. The acetylene developer, which a man can easily carry on his back, is constructed to carry rather more than 2lb of calcium carbide. This is sufficent to produce a supply of gas capable of maintaining a light of from 50 to 60 candles for eight hours. A special arrangement of two concave parabolic mirrors increases the power of the light by reflection and construction to about 100 candles. The light, with the reflector, is placed on the top of an upright rod, which forms a pivot upon which the light can be turned in any required direction. The effective radius is about 100 yards. A metal tube connects the light with the developer. The latter is automatic in its working, and all danger of explosion is fully guarded against. The light can of course be used for other purposes than that for which it is specially designed.
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https://paperspast.natlib.govt.nz/newspapers/MH18990715.2.18
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Manawatu Herald, 15 July 1899, Page 3
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187More Uses for Acetylene Gas. Manawatu Herald, 15 July 1899, Page 3
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