NDLI: Self-Contained Portable Electric Mine Lamps

Content Provider	IEEE Xplore Digital Library
Author	Swoboda, H. O.
Copyright Year	1884
Description	The considerable number of mine explosions caused by defects of the Davy safety lamps has encouraged the development of electric lamps. Satisfactory results, however, have been obtained only since the invention of the tungsten lamp, permitting the use of smaller storage batteries. The general requirements for electric lamps are: absolute safety, uninterrupted production of light for at least one shift, and a foolproof design. Prizes offered by the British Government in 1912 for the best electric lamp, resulted in 197 different constructions being submitted. The first prize was awarded to a German lamp, which since that time has been used with great success all over Europe and which is also being introduced in this country. The construction of this lamp, consisting of several types for different requirements, and the methods of handling it in actual service, are fully described. Some figures covering repairs and renewals are given. In concluding, the author mentions the only objection that can be raised against electric portable mine lamps, that they cannot be used as detectors of mine gases, as Davy lamps can, and says that for this purpose devices distinctly separate from the lamp will have to be adopted.
Starting Page	385
Ending Page	401
Page Count	17
File Size	2237084
File Format	PDF
ISSN	00963860
Volume Number	XXXIII
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1914-01-01
Publisher Place	New York, U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Lamps Electrical safety Explosions Tungsten Batteries Product safety Production Government Detectors
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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Discussion on “self-contained portable electric mine lamps” (Swoboda), Pittsburgh, Pa., April 9, 1914. (see proceedings for April, 1914)

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