Specification of William Bradburn : treating excrementitious matters, &c.

  • Bradburn, William.
Date:
1867
Catalogue details

Licence: Public Domain Mark

Credit: Specification of William Bradburn : treating excrementitious matters, &c. Source: Wellcome Collection.

    10/18 (page 8)
    Bradburris Improvements in Treating Excrementitious Matters, <§c. means of one set of the pipes described I convey all the steam or gases from the ovens a to condensers of the kind herein-before described, and by the other set of pipes I draw the dried soil or ash from the ovens by air pumps or exhausters, the expense of sewering is thereby saved. Figure 3 represents, partly in cross section and partly in elevation, the 5 apparatus which I use either for treating stable or farm refuse or night soil, or for treating refuse animal and vegetable matter for the manufacture of artificial manure. Figure 4 represents a longitudinal section of the oven of the apparatus and parts connected with it on a larger scale. The same letters of reference 10 indicate the same parts in both Figures. a is an oven attached to the furnace of the steam boiler b. The said oven a has an iron bottom c supported in the manner represented in Figure 3, under which iron bottom the flues d in communication with the furnace of the steam boiler b pass. This iron bottom c is heated by the heated air passing along 15 the flues d from the steam boiler furnace, which heat is transmitted through the said iron bottom to the oven a; in the body of the oven a a series of endless metal pipes e is situated, the said pipes being connected with and receiving superheated steam from the steam boiler b. The greater part of the pipes e are situated within the oven, but some of the horizontal pipes of the 20 series are situated in the flues d and immediately under the iron bottom c. By this means the steam passing through the pipes e in the oven a after having given up its heat to the interior of the oven by passing several times through the horizontal pipes in the flues d becomes again heated and again circulates through the pipes in the oven, and gives out its heat to the said oven. 25 The contents of the oven a are thus heated by the direct heat applied to its iron bottom c as well as by the heat of the superheated steam made to circulate through the pipes in the said oven. The outsides of the pipes e and inside of the oven a may be coated or covered with the clay known in commerce as “ canisterthey are thereby protected from the injurious action 30 of the night soil. Instead of employing superheated steam to assist in heating the contents of the oven, heated air from the furnace of the boiler may be made to pass through the pipes represented, the cold air being reheated by passing along the pipes in the flues, as described with respect to steam; and instead of employing the furnace of a steam boiler to heat the oven, any other 35 furnace or a brick kiln may be attached to the oven for the purpose of heating the same. When stable refuse or the refuse of farms or other similar refuse is to be treated in the oven a the said refuse is fed thereto through the openings f in the roof of the oven ; these openings are closed air-tight by blocks or