Specification of William White Fereday : treating excreta for conversion into manure.

  • Fereday, William White.
Date:
1873
Catalogue details

Licence: Public Domain Mark

Credit: Specification of William White Fereday : treating excreta for conversion into manure. Source: Wellcome Collection.

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    Specification. A.D. 1872.—N° 3882. 3 Feredays Impts. in Treating Excreta for Conversion into Manure. The tube to admit the testing instrument rises a few inches above the outside of the boiler, and is fitted with a screw cap. It has as well an agitator or stirrer fixed along its centre, extending from end to end, which is kept continually in motion by steam power. 5 The three steam ascension pipes communicate with and rise two inches into a cylindrical tube, fixed horizontally for the whole length of and about three feet above the boiler, with a slight inclination from one end to the other. At the end which is lowest it communicates with a coil or worm pipe, having an interior surface not less in superficial area than 10 the exterior of the drying chamber, which coil or worm pipe, together with the horizontal cylindrical tube, is laid in a brick-built chamber cemented inside, and containing cold water, and through which cold water is continually running. The coil or worm pipe communicates with a hermetically closed 15 chamber, constructed underground, and cemented inside, called the distillate chamber. The distillate chamber has a pumping apparatus fixed in connection with it, and it has a small air pipe passing from the interior through the top and communicating with the purifying cistern constructed on the 20 top of the emptying chamber herein-after described. At any convenient spot immediately contiguous to the distillate chamber, or a distance from it, I construct another closed chamber, in which I arrange and construct two washing or saturating cisterns, working alternately, and a filtering and purifying medium, consisting of five sec- 25 tional chambers. The pumping apparatus before described, in connection with the distillate chamber, communicates by underground pipes, or by hermetically closed pipes above ground with the washing and saturating beds inside the last-mentioned chamber. Returning to the drying chamber I construct at the end where the 30 door for emptying is arranged and above ground another closed chamber, called the emptying chamber. This chamber has in the floor an iron trap door communicating with a tunnel, in which is an underground rail or tramway, furnished with a covered waggon on four wheels. It has also an air pipe running from the interior through the top, and com* 35 municating with the purifying cistern built thereon.