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At the end of each tube there is what we call a 'venturi tube. This is a kind of suction device operated by the wind. The wind which blows through the left venturi tube sucks the air out of the right-hand side of the mercury tube, and the right venturi tube sucks the air out of the left-hand side of the mercury tube. The stronger the wind, the greater the suction.
Then he drew a chair to the fire and, sitting down, took up his pipe and tried to light it, but Hermione's nervous white fingers had packed it too tightly for mortal suction, whereat he sighed and, yielding to the impossible, sat with it in his hand, lost in happy thought and waiting for the swift light footsteps he yearned to hear.
"As far as my brain is concerned," I said, "the process of suction isn't likely to yield much except a vacuum, so I will resign in favour of you. You are a full-blown lawyer, whereas I am only a simple G.P." Jervis filled his pipe with deliberate care and lighted it.
The cylinder with its contents was revolved for two hours, then the charge was withdrawn and drained nearly dry by suction, the resultant liquid being slowly filtered through broken charcoal on which the chloride crystals were deposited, in appearance much like the bromo-chlorides of silver ore seen on some of the black manganic oxides of the Barrier silver mines.
When the sail was thus prepared, it was hauled under the ship's bottom by ropes, which kept it extended, and when it came under the leak, the suction which carried in the water, carried in with it the oakum and wool from the surface of the sail, which in other parts the water was not sufficiently agitated to wash off.
Heard they'd gone over t' the 'Burg an' was tryin' t' sell more territory. I says if Dave, "You let me manage 'em an' I'll put 'em out o business here 'n this part o' the country." So I writ out an advertisement fer the paper. Read about this way: "Fer sale. Twelve hunderd patented suction Wash Bilers. Anyone at can't stan' prosperity an' is learnin' if swear 'll find 'em a great help.
He swam round and round it. "He won't take it," said one. "He suspects something." "Oh, yes, he will take the meat somehow, and leave the pepper. Sly old fox!" "He has eaten many a poor Jack, that one." The shark turned slowly on his back, and, instead of grabbing at the bait, seemed to draw it by gentle suction into that capacious throat, ready to blow it out in a moment if it was not all right.
The practice is either to bore through to the water table with a man-operated auger and then insert the pipe, or to drive the latter down with a heavy sledge hammer. In either case, water is but a few feet below ground and a shallow-well pump, which can raise water twenty-two feet by suction, will be adequate.
If the scraper is quite straight and sharp, it will with gentle handling bring the surfaces very flat, no movement or wriggling being perceptible when placed together, or there may be in very good work a slight kind of suction by the air being driven out from between them. The work will be then ready for glueing. The wood should be quite warm, the glue fresh and strong.
Grasping Miss Harding by the arm I dragged or carried her, I know not which, to the yawning but welcome opening of the old stone archway. I cannot describe what followed. It was as if the earth were in its death throes. We were tossed back and forth in this tunnel, a resistless suction pulling us first toward one entrance and then to the other, only to be hurled back by buffeting blows.
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