Report On Project of the United Comstock Pumping Association for Unwatering the
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In our eReader you can find the full English version of the book. Read Report On Project of the United Comstock Pumping Association for Unwatering the Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Report On Project of the United Comstock Pumping Association for Unwatering the
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In the former case the 2500 level was long flooded, the power being off, or so weak as to be of little service, for many hours on several occasions. In the latter case the power was off nearly every day for weeks ; and, on one occasion for as long as two hours. It is only too obvious that such a shut-down of power occurring at a time when the electrical sinkers were in an unfavor- able position, might be expected to put them out of commission, as tlu 1 water would rapidly rise above the motors.... I candidly admit that with considerable difficulty plans might be conceived which would give only a fighting chance for withdrawing them. I am also aware that the motors are heavily insulated and that, when new, they are supposed to be capable of operation under cold, non-acid water for two hours ; but I have observed the rapid deterioration of the insulation in which they are baked when they are merely exposed for a short time to our hot, moist air, and the effects to be expected from their actual immersion in the hot, acid waters of the Lode would not justify a hope that there would be much chance for their opera- tion under water if they had been covered by it even a short time.
What to read after Report On Project of the United Comstock Pumping Association for Unwatering the?
You can find similar books in the "Read Also" column, or choose other free books by A M Walsh to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
In the former case the 2500 level was long flooded, the power being off, or so weak as to be of little service, for many hours on several occasions. In the latter case the power was off nearly every day for weeks ; and, on one occasion for as long as two hours. It is only too obvious that such a shut-down of power occurring at a time when the electrical sinkers were in an unfavor- able position, might be expected to put them out of commission, as tlu 1 water would rapidly rise above the motors.... I candidly admit that with considerable difficulty plans might be conceived which would give only a fighting chance for withdrawing them. I am also aware that the motors are heavily insulated and that, when new, they are supposed to be capable of operation under cold, non-acid water for two hours ; but I have observed the rapid deterioration of the insulation in which they are baked when they are merely exposed for a short time to our hot, moist air, and the effects to be expected from their actual immersion in the hot, acid waters of the Lode would not justify a hope that there would be much chance for their opera- tion under water if they had been covered by it even a short time.
What to read after Report On Project of the United Comstock Pumping Association for Unwatering the?
You can find similar books in the "Read Also" column, or choose other free books by A M Walsh to read onlineMoreLess
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