Specification of Alfred Henry Hart and William Parry : treating sewage.

  • Hart, Alfred Henry.
Date:
1867
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Alfred Henry Hart and William Parry : treating sewage. Source: Wellcome Collection.

    3/12
    A.D. 1867, 19th March. N° 788. Treating Sewage. LETTERS PATENT to Alfred Henry Hart, of No. 22, Gresham Street, in the City of London, Manufacturer, and William Parry, of Birmingham, in the County of Warwick, Mineral Surveyor, for the Invention of “ Im¬ provements in Treating or Purifying Sewage, and in Apparatus to be USED FOR THAT PURPOSE.” Sealed the 30th August 1867, and dated the 19th March 1867. PROVISIONAL SPECIFICATION left by the said Alfred Henry Hart and William Parry at the Office of the Commissioners of Patents, with their Petition, on the 19th March 1867. We, Alfred Henry Hart, of No. 22, Gresham Street, in the City of 5 London, Manufacturer, and William Parry, of Birmingham, in the County of Warwick, Mineral Surveyor, do hereby declare the nature of the said Invention for Improvements in Treating or Purifying Sewage, and in Apparatus to be used for that Purpose,” to be as follows:— Our improvements in treating or purifying sewage consist in mixing 10 therewith as herein-after described clay, clay iron ore, or manganesic earths, whereby the suspended and dissolved organic and inorganic matters contained therein are precipitated, and the water of the sewage is rendered clear ancl