MECHANICAL COAL MINER.
Per Press Association. Auckland, July 25. A 'little hardy" coalcutter has arrived vo the order of the Northern Coal Company, and is to he installed at the Kiripaka mines. As this is the first of these coal cutters imported here, an expert, Mr Leighton, has come out to see it properly started. Mr Leighton leaves for Whangarei to-night. The coal cutter is driven by compressed air, and is designed to give a very high speed, 600 to 700 Wows per minute being struck with a pressure of GO to 70 lb per square inch.
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https://paperspast.natlib.govt.nz/newspapers/TDN19070726.2.11.5
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Taranaki Daily News, Volume L, Issue 60, 26 July 1907, Page 2
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97MECHANICAL COAL MINER. Taranaki Daily News, Volume L, Issue 60, 26 July 1907, Page 2
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