Specification of Robert Stevenson Symington : apparatus for dealing with sewage, &c.

  • Symington, Robert Stevenson.
Date:
1873
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Robert Stevenson Symington : apparatus for dealing with sewage, &c. Source: Wellcome Collection.

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    2 A.D. 1873.—N° 912. Provisional Specification. Symington's Improvements in Apparatus for Dealing ivith Sewage, 8fc. of a soil pipe from a series of waterclosets, and the other for the con¬ nection of a waste pipe from a series of sinks, or jaw boxes, baths, wash-hand basins, or the like. There is an overflow outlet for liquid and a discharge outlet for solid or semi-solid excremental matters, the latter being arranged in the arched space herein-before referred to, and being 5 furnished with a close fitting valve for periodical discharges. The appa¬ ratus is formed with various other passages, but these are formed within the structure. The soil inlet communicates with a compartment in the middle of the structure having the discharge outlet at its bottom, and from the top of this compartment the liquid entering with the soil over- 10 flows through perforations or a grating into an inclined passage leading down to the lower and outer side of a lateral compartment made with a bottom inclined up from the outer side towards the middle. This lateral compartment is filled up to a certain level with ashes, through which the liquid filters in an upward direction, a perforated metal plate being 15 laid on the top of the ashes to slightly compress them. The liquid filtering up in this way overflows into a passage leading it to the outer lower side of a second lateral compartment on the other side of the middle or soil compartment, and this second lateral compartment is filled or partly filled with animal charcoal, up through which the liquid filters 20 to the overflow outlet. The liquid entering by the other inlet is passed through only the filtering compartment last described, and passes off by the same overflow outlet. The two filtering compartments are furnished with discharge outlets and close fitting doors to allow of the convenient removal of the contents when saturated. Below the cast-iron structure 25 that has been described a pit is formed with doors in the floor just beyond the ends of the structure, and in this pit the upper middle part is * occupied by a receptacle for ashes and cinders formed with inclined sides, which as well as the bottom are grated. The doors already mentioned lead into the lower part of the pit, and are for the reception 30 of vegetable and animal refuse, which will be deodorised by the ashes passing through the gratings whilst access is obtained to the receptacle for ashes by doors in the vertical ends of the cast-iron structure, such doors opening on bottom hinges and being made with sides so as when open to form hoppers to lead the ashes properly inwards. 35 The general form and arrangement of the structure may of course be modified to suit different circumstances and localities. If it should be found necessary or desirable more filtering power may