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This pump is let down into the well by a rope, and, when it reaches the bottom, is agitated for a few moments, when the sand is forced up through the valve, and thus withdrawn from the well, when the boring is again resumed.
Ball found the proper valve and saved the house from being washed away. And it was he who, after Mrs. Pomfret, took the keenest interest in Mr. Crewe's campaign. At length came one day when Mr. Crewe pulled up in front of the grocery store and called, as his custom was, loudly for Mr. Ball. The fact that Mr.
This is effected by means of a valve opening inward, at the upper portion of the peg, so long as the density of the exterior air is in excess of that within. This action takes place at the very instant of the flow of the liquid, and ceases with it; for at that instant all further supply is shut off, there being no further pressure.
The crane chains swung forward, picked up the ladle of molten metal, and shifted it through the air to a position over a circular group of moulds. There, a valve opened, the steel poured into a central pipe. "Bottom-filled," Polder concluded, assisting Mariana over the precarious flooring; "the metal rises into the ingot forms."
And it was being caught in this peculiar position that had prevented the diver from aiding himself. He could not lean forward far enough to bring effective pressure on the iron lever that had been lowered to him, or he might have pried his own foot loose, or have opened the valve wide enough to enable him to withdraw it.
Hopewell, "of the Patron, and Sam's queer illustration of the Cow's Tail, than you are aware of. The machinery of the colonies is good enough in itself, but it wants a safety valve. When the pressure within is too great, there should be something devised to let off the steam.
Before separating them make, say, two punch marks on what will be the upper edge of the valve plate near the end, and two similar marks on the chest as near the first as they can conveniently be. In like manner mark the chest cover and an adjacent part of the chest with three marks. It is utterly impossible to reassemble the parts incorrectly after separation if the marks are matched.
About the same time he attempted an improvement in the winding-engine which he worked, by placing a valve between the air-pump and condenser. This expedient, although it led to no practical result, showed that his mind was actively engaged in studying new mechanical adaptations.
"It is the sea, and we are going west." "Then we are over the Atlantic," Monsieur Teclier said. The gas was roaring from the valve above, and the balloon sank rapidly into the stratum of clouds. For a minute, all was silent; and then a cry broke from them all. They were a considerable distance from the coast, and were driving along with great rapidity.
It works by pneumatic power, and does away with the old-fashioned method of starting an aeroplane by twisting the propeller." The girl opened a valve connected with a galvanized tank, with a pressure gauge on top, and pulled back a lever. Instantly, a hissing sound filled the air.
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