Proceedings, Volume 15

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Page 37 - The residue from the continuous day and night combustion consists of about 20 per cent of good, hard clinkers and sharp, fine ashes. The clinkers are used for the foundation of roadways and the manufacture of paving slabs...
Page 37 - Wharf, whence it passes through a 5-inch main to the town quay, where it is automatically supplied to the ejectors when required for working them. The...
Page xxiii - Members' nominations must be in the hands of the Secretary on or before the 20th of April in each year. And in case the Members...
Page 196 - With respect to the sufficiency of the space about buildings to secure a free circulation of air, and with respect to the ventilation of buildings...
Page 38 - ... Arrangements were provided at first for burning the sludge, for which purpose it was discharged into a tank on the floor of the destructor and drawn out through ports in the front, opposite the feed openings of the firing chambers, where its moisture was absorbed by the ash-bin contents, which were backed up against the ports with this object ; and the mixture was then raked into the fires. Large quantities of sludge were thus destroyed ; but the process has since been discontinued, owing to...
Page 174 - ... electric deposition or other chemical uses, such as charging accumulators ; and it is very doubtful whether a practically successful alternating motor is likely to be brought out ; the system depends entirely on running machinery...
Page 37 - Ferrozone is used for precipitating the sludge; it is mixed with just enough clean water to make the whole into a stiff paste, which is led through a shoot into a box with perforated sides placed in the sewer. The sewage flowing past washes the ferrozone gradually out of the box, and is thoroughly mixed with it by the time it discharges into the reservoirs at a manhole 150 feet distant from the box. A small stream of water falling upon the ferrozone prevents it from consolidating.
Page 36 - The products of combustion pass through a 3O-horse-power multitubular steel boiler in the main flue into a furnace shaft, which is of circular brickwork, 160 feet in height from the ground line, 6 feet inside diameter at top, and 7 feet at bottom. The shaft is constructed upon a pedestal 14^ feet square and 24 feet high, of brickwork 3 feet thick; and thence upward in four sections, of which the first is 27 inches thick and 30 feet high, the second...
Page 175 - On the other hand, the cost of the batteries is very great, and they require skilled attention, while their efficiency at maximum output is probably rather low ; the automatic switches are a weak point, and any failure in this action would probably ruin the batteries at that station ; the insulation of large batteries cannot be maintained at all high, and the numerous joints, in the presence of acid fumes, are a source of weakness. " This system, in which the supply is entirely from accumulators,...
Page 174 - ... or connections made when the pressure is on ; the regulation in the houses is not so good as in the mains, as the transformers act as a considerable added resistance, and cause an increased variation of pressure in the power as compared with that in the mains; the system cannot at present be efficiently utilised for motive power, or for electric deposition or other chemical uses, such as charging accumulators; and it is very doubtful whether a practically successful alternating motor is likely...

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