(225 ILCS 705/4.07) (from Ch. 96 1/2, par. 407)
Sec. 4.07.
Every State Mine Inspector in his regular examination of mines
shall measure with an anemometer the amount of air passing in the last
crosscut in each pair of entries. He shall also investigate the condition
of ventilation in all working places to see that ventilation is adequate,
and in longwall mines the last face of each division. He shall measure with
an anemometer the amount of air passing at the inlet and outlet of the
mines. He shall compare all such air measurements with the last report of
the mine examiner and the mine manager, in the mine examination book of the
mine. He must verify that the legal code of signals between the engineer
and the top man and the bottom man has been established and is
conspicuously posted for the information of all employees.
(Source: Laws 1955, p. 2012.)
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