Reproduced by permission from "The Romance of Modern Electricity" (Seeley, 

 Service &* Co.). 



AN ELECTRIC COAL-CUTTER 



Many millions of tons of coal are "won" annually with the aid of mechanical 

 cutters driven by electric motors, the output per machine ranging up to 15,000 tons 

 in the twelve months. The machines are of several types, some of them designed 

 for working in very confined spaces where a miner could wield his pick only with 

 difficulty. The upper illustration shows a cutter in place, and miners peering out 

 near its ends. The machine itself is seen in the lower photograph, reproduced by 

 permission of Messrs. Mavor & Coulson. Glasgow. The long bar on the right 

 which does the cutting is studded with short picks, and is rotated and oscillated 

 to and fro at the same time. 



