(225 ILCS 705/19.14) (from Ch. 96 1/2, par. 1914)
Sec. 19.14.
When operators of adjacent mines have, by agreement, established underground communications between said mines as an escapement outlet for the men employed in both, the intervening doors shall remain unlocked and ready at all times for immediate use.
(Source: Laws 1953, p. 701.)