HC Deb 29 March 1938 vol 333 c1807
1 and 2. Mr. W. Joseph Stewart

asked the Secretary for Mines (1) the number of coal conveyors used in the Durham coalfield during the years 1935, 1936, and 1937, respectively;

Durham.
Year. Number of Total Number of Conveyors. Quantity of Coal cut by Machinery.
Coal-face Conveyors. Gate Conveyors.
Tons.
1935 … … 332 120 452 11,481,710
1936 … … 353 126 479 12,379,616
1937 … … 380 143 523 13,311,246