Specification of James McIntyre : purifying sewage waters.

  • McIntyre, James
Date:
1875
Catalogue details

Licence: Public Domain Mark

Credit: Specification of James McIntyre : purifying sewage waters. Source: Wellcome Collection.

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    Mc Intyre's Improvements in Apparatus for Purifying Sewage Waters. the sewer is connected to each by separate inlet and outlet branch passages fitted with sluices. Each tank is made to extend down a considerable depth below the sewer level, but the outlet from it is made higher than the inlet, and the sewage waters flow in and fill up the tank until they reach this higher discharge level, the water flowing off as it 5 rises above that level. This arrangement of the discharge level relatively to the inlet breaks or interrupts the current through, and the water in the tank being comparatively quiescent matters suspended in it descend and are deposited. When a sufficient deposit has lodged in one tank the sluices are changed so as to direct the sewage waters through the other 10 tank, and the deposit in the first tank is removed by endless chain elevators or dredging apparatus, and is utilised for making manure. If each tank takes more time for removing the deposit than for filling three or more tanks will require to be used in combination. There may be two or more successive sets of the depositing tanks, so 15 that if the water still retains suspended matters after passing one tank it may have an opportunity of depositing it in a second or third tank. After suspended matters are separated by means of the apparatus herein-before described impurities held in solution may be removed or rendered innocuous by any known filtering or chemical processes that 20 may be found suitable. The essential features of the present Invention are the arrangements herein-before described for obtaining the deposition of suspended matters whilst the sewage waters flow continuously through the apparatus, and without requiring expensive pumping machinery or any greater outfall 25 or declivity than that of any existing sewers. SPECIFICATION in pursuance of the conditions of the Letters Patent, filed by the said James McIntyre in the Great Seal Patent Office on the 19th March 1875. TO ALL TO WHOM THESE PRESENTS SHALL COME, I, James 30 McIntytie, of Port Glasgow, in the County of Renfrew, North Britain, send greeting. WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters Patent, bearing date the Twenty-first day of September, in the