Specification of Isaac Brown : treating sewage.

  • Brown, Isaac.
Date:
1873
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Isaac Brown : treating sewage. Source: Wellcome Collection.

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    Provisional Brown’s Improvements in Treating Sewage y 8fC, constructed of faggots, with a lining of wire guaze, these screens being so arranged as to be readily removable for washing or cleansing. The effluent liquid is after such filtration in a fit state (when the sewage has been intercepted in a fresh state at its outfall) either for purposes of irrigation, or may be passed into rivers without detriment, or may be 5 distributed over the land by means of the Invention for which I applied for Letters Patent on the 17th May 1872, No. 1511. > The solid matter which has been intercepted as above may be then re¬ moved in any convenient manner, and may be employed either as a manure direct, or when desired may be converted into a portable manure by the 10 addition thereto of about one-half of its weight of ground phosphate of lime with about the same weight of sulphuric or other acid, but these proportions may be varied. The combination of these three materials produces in a very short period (a few hours) a free portable manure fit for use, by which the great expense attendant on drying sewage and 15 similar materials for the purposes of manure is avoided, whilst a better and more valuable product is obtained. SPECIFICATION in pursuance of the conditions of the Letters Patent, filed by the said Isaac Brown in the Great Seal Patent Office on the 22nd January 1878. 20 TO ALL TO WHOM THESE PRESENTS SHALL COME, I, Isaac Brown, of Elm Croft Grange, Edinburgh, in the County of Mid Lothian, North Britain, send greeting. WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters Patent, bearing date the Thirtieth day of July, in the year 25 of our Lord One thousand eight hundred and seventy-two, in the 36th year of Her reign, did, for Herself, Her heirs and successors, give and grant unto me, the said Isaac Brown, Her special license that I, the said Isaac Brown, my executors, administrators, and assigns, or such others as I, the said Isaac Brown, my executors, adminis- 30 trators, or assigns, should at any time agree with, and no others, from time to time and at all times thereafter during the term therein expressed, should and lawfully might make, use, exercise, and vend,