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Safety switch at Newport Mine

Petersen, Max S.
; 
Arthur Lakes Library
; 
Russell L. and Lyn Wood Mining History Archive
; 
United States. Bureau of Mines
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Date
1940?-1949?
Date Issued
Date Submitted
Keywords
Pickands, Mather and Company
 Iron mines and mining
 Mine safety
 Underground mining
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Mining History - Images
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[Safety switch at Newport Mine].
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URI
https://hdl.handle.net/11124/5798
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Abstract
The safety switch provides shunt protection in blasting circuits between a blast site and the switch used to to connect a power source to the blasting circuit. The Newport Mine in the Gogebic district near Ironwood, Michigan began operations in 1884. The mine was operated by the Newport Mining Company, then eventually by Pickands, Mather & Company.
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