Finally he brushed the hay from his shirt and jeans, his gaze downcast as he spoke.
In any case whether natural or artificial means be employed, a mine can only be ventilated properly when it has at least two distinct openings to the surface, one an intake or " downcast," the other a chimney serving as an " upcast."
In a mine with shafts opening at the same level, natural ventilation once established will be effective during cold weather, as the downcast will have the temperature of the outside air, while the upcast will be filled with the warm air of the mine.
The use of two independent connexions - whether separate pits or sections of the same pit, between the surface and the workings - is necessary for the service of the ventilation, fresh air from the surface being carried down one, known as the " downcast," while the foul or return air of the mine rises through the other or " upcast " pit back to the surface.
This is effected by carrying through the workings a large volume of air which is kept continually moving in the same direction, descending from the surface by one or more pits known as intake or downcast pits, and leaving the mine by a return or upcast pit.
When the mine is free from gas, the furnace may be worked by the return air, but it is better to take fresh air directly from the downcast by a scale, or split, from the main current.
"Sell me the missis," said another soldier, addressing the German, who, angry and frightened, strode energetically along with downcast eyes.
Before dinner, Princess Mary and Mademoiselle Bourienne, who knew that the prince was in a bad humor, stood awaiting him; Mademoiselle Bourienne with a radiant face that said: "I know nothing, I am the same as usual," and Princess Mary pale, frightened, and with downcast eyes.
Letting her arms fall helplessly, she sat with downcast eyes and pondered.
Pierre, with downcast eyes, drank out of his glass without looking at Dolokhov or answering him.
"Countess..." said Denisov, with downcast eyes and a guilty face.
"Can he really be going away leaving me alone without having told me all, and without promising to help me?" thought Pierre, rising with downcast head; and he began to pace the room, glancing occasionally at the Mason.
Cursing his temerity, his heart sinking at the thought of finding himself at any moment face to face with the Emperor and being put to shame and arrested in his presence, fully alive now to the impropriety of his conduct and repenting of it, Rostov, with downcast eyes, was making his way out of the house through the brilliant suite when a familiar voice called him and a hand detained him.
Prince Andrew came up to her with downcast eyes.
Sonya listened silently with downcast eyes to the countess' cruel words, without understanding what was required of her.
God is my witness, I didn't know-" he repeated, stressing the word "God" so unnaturally and so unpleasantly that Princess Mary stood with downcast eyes not daring to look either at her father or at Natasha.
Balashev stood with downcast eyes, looking at the movements of Napoleon's stout legs and trying to avoid meeting his eyes.
He rode hurriedly from the battlefield and returned to the Shevardino knoll, where he sat on his campstool, his sallow face swollen and heavy, his eyes dim, his nose red, and his voice hoarse, involuntarily listening, with downcast eyes, to the sounds of firing.
Ignat left off smiling, adjusted his belt, and went out of the room with meekly downcast eyes.