Electricity as applied to mines

The paper deals in a very general way with the use of electricity in collieries. The types of generators, motors and cables are explained, and the factors governing the use of each particular type are discussed. A brief outline of the mechanical plant used in conjunction with motors is given, including pumps, haulages, coal cutters and winders. Diagrams are given of a typical haulage, as used extensively in this country, a turbine pump, a disc coal cutter and a small electric winder.