Proceedings of the Annual Convention of the American Railway, Bridge and Building Association Volume 22.cAmerican Railway Association
Proceedings of the Annual Convention of the American Railway, Bridge and Building Association Volume 22
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Author: American Railway Association
Number of Pages: 92 pages
Published Date: 01 Mar 2012
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
ISBN: 9781130266290
File size: 32 Mb
Download Link: Proceedings of the Annual Convention of the American Railway, Bridge and Building Association Volume 22
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1913 Excerpt: ...as Mr. Ewart says. I do not know that there is any method for preventing electrolysis; if there is, 1 never heard of it. It might be possible for us to connect up on the other end and transmit power, too, but I don't think the power companies would stand for that. Mr. Warcup: --Electrolysis is more serious than most of us are willing to admit. We have a number of miles of Pintsch gas pipe lines, on which we had occasion a while ago to make some repairs. The gas was drawn back and as soon as we broke the joint the thing instantly took fire. It frightened the men working on it and they did not know what to make of it, but it was caused by the electricity running down the pipe, igniting the gas at the break in the pipe. This was on a bridge, and I suppose the electricity was running for the water which it would have reached if it had gone a little further. Now, when we have occasion to break a pipe on the bridge, we always wind a piece of copper wire on one side, then connect it on the other side and carry the electricity beyond us. That is the only way we can handle it. We have also had our troubles with cinders so that now, in laying either cast iron or wrought iron pipe through cinders, we take the cinders out below the pipe and fill in with sand or gravel for a foot above the pipe before we let the cinders in. I have cases where we have lead services and we have been obliged to do the same thing, as they will eat a lead pipe out in two or three years. Mr. Robinson: --Some kinds of sand are also injurious to cast iron pipe. We have a pipe line about three miles long that has broken in places and we found that pitting caused it. We never found any electrolysis on it, although there are several electric lines in the vicinity. Mr. Alexander: --We have frost in ou

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