The book The Dominion of the Air: The Story of Aerial Navigation (by J. M. Bacon, 1902), has several references to the Davy Lamp on balloon flights (¡§But the chilliness did not last for long. A height of 1,500 feet was read by the Davy lamp, and then we entered fog¡Xwarm, wetting fog, through which the balloon would make no progress in spite of a prodigal discharge of sand¡K¡¨
It also disparages the idea of using a Davy lamp to heat the gas of the balloon: ¡§¡KThe only feasible suggestion with respect to the use of compressed gas is that of taking on board charged cylinders under high pressure, which, after being discharged to supply the leakage of the balloon, could, in an uninhabited country, be cast out as ballast. It will need no pointing out, however, that such an idea would be practically as futile as another which has gravely been recommended, namely, that of heating the gas of the balloon by a Davy lamp, so as to increase its buoyancy at will. Major Baden-Powell has aptly described this as resembling ¡¥an attempt to warm a large hall with a small spirit lamp.¡¦¡¨
Bob M
Robert E. Murowchick ¼}®e³Ç
Associate Director, Boston University Center for the Study of Asia (BUCSA), Frederick S. Pardee School of Global Studies
Adjunct Associate Professor, Dept of Anthropology, College of Arts and Sciences, Boston University
Director, AsianARC: the Boston University Asian Archaeology and Cultural Heritage Research Initiative (formerly ICEAACH)
232 Bay State Road, Room 424
Boston University, Boston, Massachusetts 02215 USA
Tel. 617/358-8006 Email: <[log in to unmask]<mailto:[log in to unmask]>>
Asian Studies at Boston University website http://www.bu.edu/asian
From: mining-history <[log in to unmask]<mailto:[log in to unmask]>> on behalf of margaret and michael shaw <[log in to unmask]<mailto:[log in to unmask]>>
Reply-To: "The mining-history list." <[log in to unmask]<mailto:[log in to unmask]>>
Date: Wednesday, November 14, 2018 at 2:03 PM
To: "[log in to unmask]<mailto:[log in to unmask]>" <[log in to unmask]<mailto:[log in to unmask]>>
Subject: safety lamps
It had never occurred to me that a safety lamp would be used anywhere other
than as necessary in a mine but reading Dickens' Nicholas Nickleby I found
a reference to a lady carrying a Davy lamp on a coach, how many other
such uses existed?
Mike Shaw
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