The Steam Engine Being a Popular Description of the Construction And Action of
The book The Steam Engine Being a Popular Description of the Construction And Action of was written by author Hugo Reid Here you can read free online of The Steam Engine Being a Popular Description of the Construction And Action of book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Steam Engine Being a Popular Description of the Construction And Action of a good or bad book?
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Savery died about 1717* He was much esteemed and weU spoken of by his contemporaries. He had the satisfetction of seeing his invention applied to practice. His engine was actually applied to draining mines and raising water for gardens, as we learn from statements by himself and others. 203. But it laboured under considerable disadvan- tages. . One of the principal of these was, that it must be erected not more than about twenty-seven or twenty-six feet above the level of the water to be raised.... Were the vacuum perfect in the copper vessel the atmospheric pressure would fill it with water, if its upper part were 33.87 feet above the water to be THE STEAM-ENGINE. 95 raised. But the vacuum is never perfect; some vapour always remains, opposing the atmospheric pressure; so much that it was found that the water could not be raised much above twenty-six feet. Here, then, was a great drawback on the en^ne ; so near the bottom of a mine, it would be very apt to be destroyed by the water rising, especially if, from any cause, its action should be suspended for a day or two.
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