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Means of Access and Egress
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adequate air current apparatus appliances apply appointed approved authorised BELGIUM blasting boreholes brake brattice cables cage CANADA Alberta carried cars cartridges certificate Chapter charge circuit circuit breakers coal mines coal-dust conductors connection danger detonators device diesel locomotive Director of Mines district inspector Division Divisional Mining Office Dortmund drill dust duties electrical equipment examination exceed explosives face fire fire boss firedamp foreman haulage roads hoisting hole immediately inflammable material inspection Inspector of Mines Inspector-General of Mines installed insulated least load locomotive man-winding manager material means mechanical methane miner misfire necessary NETHERLANDS operation overman persons employed prescribed prevent prohibited protected purpose regulations roof rope safe safety lamp seam shaft shift shot shot-hole shotfiring signals SOUTH AFRICA specified staple pits station stone-dust subsection suitable supervision supervisory official surface switches transport trolley wire tubs underground UNITED KINGDOM unless ventilation winding engine workers workplace