They reached the passage in a cloud of smoke, but it was going up the air shaft and did not fill the passage.
"I wish we could set the air shaft working," suggested Sandy.
I'll tell you what, Em—you call down the air shaft to Cass, and tell him to send Henny up to make us a nice little coal fire here.
Scarcely could a man fall in such a way in an air shaft and live.
There were 466 babies in the block (under five years), but not a bath-tub except one that hung in an air shaft.
If two galleries in a mine are to be connected by an air shaft, how shall it be planned so as to save labor?
There was a scramble for the buckets, but no one offered to man the windlass and hoist them up the air shaft.
Grant looked up the air shaft and saw the fire–little flickering flames lighting up the shaft near the second level.
One way is to keep a large fire at the bottom of the air shaft.
He ran out of his room and to an air shaft and saw the smoke coming up thickly.