Abstract
MR. R. C. WOODS, of the Ericsson Telephones, Ltd., London, communicates a description of a mine rescue telephone to the Ericsson Review of 1939 (No. 2). The Coal Mines Regulations require owners of mines, to which the regulations apply, to make definite provision for rescue work in mines after an explosion, fire or other accident. Telephone communication between the rescue brigade and its base is of great importance. Ericsson Telephones, Ltd., in collaboration with the Mines Department Testing Station, have constructed a mine rescue telephone which was officially tested last year, after which the production was immediately undertaken.
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Mine Rescue Telephone. Nature 145, 235 (1940). https://doi.org/10.1038/145235a0
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DOI: https://doi.org/10.1038/145235a0