HC Deb 22 March 1938 vol 333 c1017W
Mr. Pearson

asked the Secretary for Mines whether he has any statistics to show what is the general effect of machine mining in South Wales upon the number and severity of underground accidents?

South Wales and Monmouth.
Mines under the Coal Mines Act, 1911.
Percentage of Total Output. Output per manshift worked belowground.* Accident rate per 100,000 manshifts worked belowground.
Year. Cut Conveyed Killed (belowground). †Injured (belowground).
by machinery. Falls. Haulage. Total belowground. Falls. Haulage. Total belowground.
Cwts.
1927 … 7 Not available. 23.63 .34 .15 .68 38.97 13.43 81.01
1928 … 8 16 24.38 .28 .20 .55 39.18 12.65 80.47
1929 … 9 16 24.44 .32 .13 .54 42.76 14.94 87.68
1930 … 10 17 24.06 .30 .19 .55 41.95 15.96 89.11
1931 … 12 20 23.48 .32 .13 .51 38.81 16.70 82.87
1932 … 12 20 23.61 .34 .15 .57 36.96 17.88 79.11
1933 … 13 21 23.80 .36 .15 .56 36.86 16.02 77.58
1934 … 15 26 24.11 .29 .18 .52 38.30 17.24 82.82
1935 … 18 32 24.86 .32 .15 .52 40.10 17.17 85.49
1936 … 21 36 25.59 .24 .20 .52 40.58 16.50 86.25
1937 … 24 40 25.08 .34 .15 .57 Not available.
* Relates to years ending 31st January, 1928–1938.
† i.e. Injured and Disabled for more than three days.