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Jules Goulet
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F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
F21L23/00—Non-electric hand-lamps for miners
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Engineering & Computer Science
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General Engineering & Computer Science
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Non-Portable Lighting Devices Or Systems Thereof
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Abstract
28,685. Goulet, J. Dec. 9. Carburetted-air burners. - In miners' safety lamps, carburetted air passes through a tube 37 in the base 36 of the lamp to the burner-tube 70, which is forced into a washer 71 clamped between rings 72, 73 beneath the glass 40.
GB191028685D1910-12-091910-12-09Improvements in Hydrocarbon Miner's Lamps.
ExpiredGB191028685A
(en)