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Then in 1705 Newcomen and Cawley, working with Savery, took up Papin's idea, separated boiler from cylinder, and thus produced a vacuum into which atmospheric pressure forced the piston and worked the pump.
But this is nothing more than the fire-engine you have seen described in the books of hydraulics, and particularly in the Dictionary of Arts and Sciences, published in 8vo, by Owen, the idea of which was first taken from Papin's Digester. It would have been better called the steam-engine. The force of the steam of water, you know, is immense.
I may here remark that within the main Cordillera rain never falls, for during the summer the sky is cloudless, and in winter snow-storms alone occur. At the place where we slept water necessarily boiled, from the diminished pressure of the atmosphere, at a lower temperature than it does in a less lofty country; the case being the converse of that of a Papin's digester.
Banion has to say," said he. "He's proved part of the question right now. I've always heard it's fording, part way, at Papin's Ferry. It don't look it now." "The river's high, Mr. Wingate," said Banion. "If you ask me, I'd rather ferry than ford. I'd send the women and children over by this boat. We can make some more out of the wagon boxes. If they leak we can cover them with hides.
But don't claim incompatible qualities for anybody. Justice is a very rare virtue in our community. Everything that public sentiment cares about is put into a Papin's digester, and boiled under high pressure till all is turned into one homogeneous pulp, and the very bones give up their jelly. What are all the strongest epithets of our dictionary to us now?
But thar's enough o' the Liberty wagons to go through without no help. We kin whup all the rest o' this train, give we need ter, let alone a few Injuns now an' then. "To-night," he concluded, "we'll head up the river, an' leave you fellers the boat an' all o' Papin's Ferry to git acrost the way you want.
This, he declares, is a purely mechanical process due to heat and pressure, the wonderful effects of which may be seen in Papin's recently invented 'digester. That the stomach is fully able to comminute the food may be proved by the following calculation. Borelli estimates the power of the flexors of the thumb at 3720 pounds, their average weight being 122 grains.
Enamelled iron will be employed for the troughs in which the bones and acid will be mixed, and a cover similar to that placed over a "Papin's digester" will be clamped to the rim all round, the gases being liberated only in the form of a jet used for driving machinery.
Noon of the fifth day brought them to the swollen flood of the latter stream, at the crossing known as Papin's Ferry. Here the semicivilized Indians and traders had a single rude ferryboat, a scow operated in part by setting poles, in part by the power of the stream against a cable. The noncommittal Indians would give no counsel as to fording. They had ferry hire to gain.
A sudden gleam of light relieved his distress; he remembered that one of his friends, quite ill at one time, had made use of a Papin's digester to overcome his anaemia and preserve what little strength he had.
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