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Coal Mining Machines

2010226like most machine haulage units at the time, the ace could be either electric motor or compressed air turbine driven recall during the 1960s that at least on the east side of frickley barnsley seam all the faces were compressed air, the shearers that i knew of were ab 16" with hydraulic haulage and as chippy states these were a mechanical fitters nightmare and an electricians dream, not.