. Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries. SECTION XVII. MINING DEVICES ANDAPPLIANCES. 271 Section XVII. MINING DEVICES AND 706. MINING LAMP. Clanny glass takes the place of the lower partof the wire gauze in the Davy lamp andthus gives a clear light from the air enters through th
. Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries. SECTION XVII. MINING DEVICES ANDAPPLIANCES. 271 Section XVII. MINING DEVICES AND 706. MINING LAMP. Clanny glass takes the place of the lower partof the wire gauze in the Davy lamp andthus gives a clear light from the air enters through the lower part ofthe wire gauze chimney, as shown by thearrows in the section. English. An improvement on the Davy lamp.
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Keywords: ., bookauthorhiscoxgardnerdexter18, bookcentury1900, bookdecade1910
