Rudimentary Treatise on the Drainage of Towns & Buildings ...

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John Weale, 1854 - 212 páginas
 

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Página 40 - Report of the Commissioners of Inquiry into the State of Large Towns and Populous Districts.] THOMAS HAWKSLEY, Esq., CE, Nottingham, examined.
Página 137 - ... which passes over the top of the cap, and forms a gradual slope down to the railing on each side of the pyramid. The wire cables, which are the main support of the structure, are suspended next to the trunk, one on each side ; each of these two cables is exactly 7 inches in diameter, perfectly solid and compact, and constructed in one piece from shore to shore...
Página 46 - An Act to consolidate, and continue in force for Two Years and to the End of the then next Session of Parliament, the Metropolitan Commissions of Sewers.
Página 26 - ... where the grass is consumed, but also partly from the better natural quality of the land. The average value of the land, irrespective of the sewer water application, may be taken at 3?. per imperial acre, and the average rent of the irrigated land at 30?., making a difference of 27?.; but 2?. may be deducted as the cost of management, leaving 25?. per acre of clear annual income due to the sewer water.
Página 4 - This is much more than it is necessary to add to an acre of land in order to obtain, with the assistance of the nitrogen absorbed from the atmosphere, the richest possible crop every year.
Página 33 - These facts, and my own experience, lead to the conclusion that the toicn sewerage water sfwuld be collected, and raised to the required altitude in as concentrated a condition as possible ; but that it should be distributed and applied to the land, in such a state of dilution with water, as may be required by the season of the year, the state of the weather, and the quantity of moisture in the soil.
Página 26 - The average value of the land, irrespective of the sewer-water application, may be taken at £3 per imperial acre, and the average rent of the irrigated land at £30, making a difference of £27; but £2 may be deducted as the cost of management, leaving £25 per acre of clear annual income due to the sewer-water.
Página 28 - Plan for improving the air and water of the metropolis by preventing the sewage being conveyed into the Thames, thereby preserving not only the purity of the air, but the purity of the water ; and likewise for manure and agricultural purposes.
Página 158 - Sewers and drains were formerly devised with the single object of making them large enough, by which it was supposed that their full efficiency was secured. But sluggishness of action is now recognized as the certain consequence of excess of surface equally as of deficiency of declination. A small stream of liquid matter extended over a wide surface, and reduced in depth in proportion to this width, suffers retardation from this circumstance as well as from a want of declivity in the current.
Página 169 - If the sewer be constructed of brickwork, a good joint will be obtained by introducing a separate socket of stone-ware to receive the house-drain pipe, and formed with a flange at the other end to surround and cover the opening in the sewer, which can then be made good with a ring of cement carefully applied. 424. Means of access to house-drains are always desirable in arranging the details of the apparatus. And this constitutes another reason against the deeply-sunk drains required to serve the...

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