IMPROVEMENTS IN SEWERS AND THE TREATMENT AND DISTRIBUTION OF SEWAGE MANURE
Year: 1871

page_text: LETTERS PATENT to John Dunkley, of Adelaide Villas, Park Road,
Teddington, in the County of Middlesex, Builder, for the Invention
of "IMPROVEMENTS IN SEWERS AND THE TREATMENT AND DISTRIBUTION OF
SEWAGE MANURE."
Sealed the 8th August 1871, and dated the 3rd March 1871.
PROVISIONAL SPECIFICATION left by the said John Dunkley at the
Office of the Commissioners of Patents, with his Petition, on the
3rd March 1871.
I, JOHN DUNKLEY, of Adelaide Villas, Park' Road, Teddington, in the
County of Middlesex, Builder, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN SEWERS AND THE TREATMENT AND DISTRI-
BUTION OF SEWAGE Manure," to be as follows :—
I construct the main or principal sewers with stone, earthenware,
iron, or wood portions at convenient intervals cach already bored with
a plugged aperture suitable for the insertion afterwards of the end of a
drain pipe when required to be connected. The sewage passes along
two separate passages one in each side of the drain and with covers
removable in portions by the men who can traverse the drain walking
dry between the two passages. The sewage being afterwards raised to
the clevation for the flow required is drawn off by a pipe into which
water may be admitted at discretion through a tube from a cistern

page_text: so as to regulate and facilitate the flow through branch pipes with taps
at convenient places into tanks where the sewage is mixed with loam,
carth, or other proper material for use as manure.
'
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Dunkley in the Great Seal Patent Office on
the 31st August 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, Joun
DUNKLEY, of Adelaide Villas, Park Road, Teddington, in the County of
Middlesex, Builder, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Third day of March, in the year of
our Lord One thousand eight hundred and seventy-one, in the thirty-
fourth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said John Dunkley, Her special licence,
that I, the said John Dunkley, my exccutors, administrators, and
assigns, or such others as I, the said John Dunkley, my executors,
administrators, and assigns, should at any time agree with, and no
others, from time to time and at all times therenfter during the term
therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the
Ohannel Islands, and Isle of Man, Colonies to be mentioned, if any,
an Invention for "IMPROVEMENTS IN SEWERS AND THE TREATMENT AND DIS-
TRIBUTION OF SEWAGE MANURE," upon the condition (amongst others) that
I, the said John Dunkley, my executors or administrators, by any
instrument in writing under my, or their, or one of their hands and
seals, should particularly describe and ascertain the nature of tho said
Invention, and in what manner the same was to be performed, and cause
the same to be filed in the Great Scal Patent Office within six calendar
months next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, tho said John Dunkley, do hereby declare
the nature of my said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the
following statement (that is to say) :-
Fig. 1 of the accompanying Drawings represents those parts of my
Invention which relate to the portions for the ends of drain pipes-and

page_text: the separate passages in the same; Fig. 2 represents separately one of
such portions of the wall with the apertures for drain pipes in vertical
section across the sewer; Fig. 3 represents the same in vertical section
along the sewer.
Fig. 4 represents in side clevation, and Fig. 5 in plan the arrangements
for raising the sewage and for its flow through branch pipes. The same
letters indicate similar parts in all the figures.
I form the portions of the wall of a sewer at convenient intervals of
the requisite shape for inserting a drain pipe or pipes which in the
figures are shewn as circular in section and as in the side wall, but the
openings may be of any shape and the portion may be in any part of
the sewer walls or roof, and one portion for one pipe may be separate or
adjoining the portion for another.
A, B, are two drain pipes coming in through C a portion formed to
receive them, and bringing sewage into D, one of the two separate
passages covered by E a moveable cover, and so placed that a man can
walk between the two upon the floor F. The sewage being next led on
to the part G (Figs. 4, 5,) flows along two tanks H, H, and water
introduced by the sluice I from the pipe J either from a reservoir or
from the main service pipe or other supply so as to have a head or
pressure forces the sewage by the pipe K to one or more branch pipes
L, L, L, in Fig. 5, one of which is represented as taking the water and
sewage to a pit M where it may be mixed with loam or otherwise treated
and then be drawn off as required.
I claim as my Invention the constructing portions of sewers to admit
drain pipes, also the constructing the sewer in two separate passages
with moveable covers, also the arrangements for raising the sewage, all
as herein-before described
In witness whereof, I, the said John Dunkley, have hereunto set
my hand and seal, this Thirty-first day of August, in the year of
our Lord One thousand eight hundred and seventy-one.
JOHN DUNKLEY. (L.S.)