HC Deb 21 June 1938 vol 337 c865
7. Mr. Daggar

asked the Secretary for Mines the number of coal-cutting machines and the number of conveyors in use in the mines of Great Britain during 1937?

Captain Crookshank

During the year 1937, 7,781 coal-cutting machines and 7,300 conveyors were in use at mines under the Coal Mines Act, 1911, in Great Britain.