Scientific American Supplement, No. 531, March 6, 1886
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The income of the company might bewasting away, and the loss never suspected until the quarterly returnsfrom the meters were obtained from the inspectors. Only then would it bediscovered that there must be a great leak (or it might be severalleaks) somewhere. But how would it be possible to trace them among 20 or30 miles of buried pipes? We cannot break up the public streets. Thevery existence of the concern depends upon (1) the _daily_ checking ofthe meter returns, and comparison with the outp...ut from the aircompressors, so as to ascertain the amount of leakage; (2) facility fortracing the locality of a leak; and (3) easy access to the mains withthe minimum of disturbance to the streets. It will be readilyunderstood, from the drawings, how this is effected. First, the pipesare laid in concrete troughs, near the surface of the road, withremovable concrete covers strong enough to stand any overhead traffic. At intervals there are junctions for service connections, with streetboxes and covers serving as inspection chambers.
What to read after Scientific American Supplement, No. 531, March 6, 1886?
You can find similar books in the "Read Also" column, or choose other free books by Various to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The income of the company might bewasting away, and the loss never suspected until the quarterly returnsfrom the meters were obtained from the inspectors. Only then would it bediscovered that there must be a great leak (or it might be severalleaks) somewhere. But how would it be possible to trace them among 20 or30 miles of buried pipes? We cannot break up the public streets. Thevery existence of the concern depends upon (1) the _daily_ checking ofthe meter returns, and comparison with the outp...ut from the aircompressors, so as to ascertain the amount of leakage; (2) facility fortracing the locality of a leak; and (3) easy access to the mains withthe minimum of disturbance to the streets. It will be readilyunderstood, from the drawings, how this is effected. First, the pipesare laid in concrete troughs, near the surface of the road, withremovable concrete covers strong enough to stand any overhead traffic. At intervals there are junctions for service connections, with streetboxes and covers serving as inspection chambers.
What to read after Scientific American Supplement, No. 531, March 6, 1886?
You can find similar books in the "Read Also" column, or choose other free books by Various to read onlineMoreLess
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