Specification of John Hart : separating, distributing, and utilizing sewage.

  • Hart, John.
Date:
1870
Catalogue details

Licence: Public Domain Mark

Credit: Specification of John Hart : separating, distributing, and utilizing sewage. Source: Wellcome Collection.

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    HfIVs I7yij^7'0'0€7yi6'i^its ifi Scpcivcit'ifiQf T)'istvihut'i7i0^ ctfid TJti/Hz'i'yiQ S€WctQ€m and moving parts are dispensed with, and therefore there is nothing to get out of order, all that is necessary is to adjust the supply or divert the same from one reservoir to the other, and this can he done by an ordinary two-way cock placed at the junction of the main tube with the two branches to the reservoirs. The channels for conveyance of the manure 5 on the arable land may he readily formed by means of a plough. Assuming the transverse section of the channel to be cut on a level with a longi¬ tudinal descent, two furrows with external ridges should he cut, leaving an intervening space ; it would then follow that if the two angular cuttings penetrated six inches tlie two ridges would be raised six inches 10 above the level, giving a total depth in each furrow of twelve inches, and a depth of six inches above the intervening level uncut. Thus the main body of the manure would flow through or along the largest or upper part of the channel, which is of course above the original level of the land and between the raised ridges. Assuming that the cross section of 15 the land should be sloping, one furrow and outer ridge only need be formed on the surface; the channel would then be limited according to its depth on one side to the internal edge or surface of the ridge, and on the other to a margin where the level of the manure reached the cor¬ responding level of the sloping ground. So also on a level cross section 20 of land two furrows may be cut close together leaving external ridges; thus the apex of the internal ridge would be the original level, and the two outer raised ridges would form the width of the channel. On land consisting of barreled shaped undulations the divisions between them would serve as main channels, and a series of angular cuttings should 25 be made extending midway across the divisions of land, meeting in the centre, by which means the manure could be conveyed over the entire surface. All these methods of forming channels are suitable for the circular, oval, spiral, or irregular arrangements of channels mentioned according to their cross section, 30 SPECIFICATION in pursuance of the conditions of the Letters Patent, filed by the said John Hart in the Great Seal Patent Office on the 3rd January 1870. TO ALL TO WHOM THESE PRESENTS SHALL COME, I, John Haet, of Leamington, in the County of Warwick, send greeting. 35