IMPROVED MEANS FOR FLUSHING CLEANING AND PURIFYING SEWERS
Year: 1884

page_text: COMPLETE SPECIFICATION.
I, WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake, and Co, Patent
Agents, Southampton Buildings, London, in the County of Middlesex do hereby
declare the nature of said Invention for "IMPROVED MEANS FOR FLUSHING
CLEANING AND PURIFYING SEWERS" and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:-
This Invention relates to novel means for flushing, cleaning and purifying
and it consists in the combination of devices hereinafter described.
In the accompanying Drawing
sewers,
Figure 1, shows a main sewer with the present improvements applied thereto.
Figure 2, represents a house-sewer, with the same improvements and entering a
main sewer.
A indicates a section of a main sewer and B the water main. The sewer is
drawn to represent the irregularities of a street sewer; a a indicate the piles of
dangerous waste material which usually collect therein, lodging, as will be seen,
on the level portions of the sewer. To remove these collections of dangerous and
poisonous matter, and to keep the air in the sewers comparatively pure and healthy,
is the object of the present Invention.
•
The
The water main is tapped by means of the pipe C, which leads into the
sewer A, and this pipe is perforated so as to allow any desired number of jets of
water to impinge upon the noxious material and wash it out of the sewer.
end of the pipe C is provided with a cap c, which, by checking the flow of the
water through the pipe, gives greater force and effect to the jets.
It is evident, however, that in a long sewer the water thus admitted into the
sewer through the pipe C loses much of its force; and particularly on long levels,
would fail to be very effective. To overcome this difficulty I introduce other
pies D, tapping the water main at different points along the sewer, and at such
intervals as may be deemed necessary to effectually remove all collections of
poisonous matter. At each of the perforations in these pipes, I prefer to attach
a short nozzle & inclining in the direction in which the sewer runs. These nozzles

page_text: give a greater cutting and removing power to the jets of water, and assist
materially in cleaning the sewer of all noxious accumulations and poisonous gases.
At proper intervals along the line of the sewer, and particularly at such points
as the refuse material is most likely to accumulate. I place inan-holes E, through
which a person may enter the sewer, if occasion should require it, and loosen or
remove the objectionable matter. This can always be done with absolute safety,
as the jets of water tend to keep the air in the sewers free from the poisonous
gases, so universally met with, and which so frequently prove fatal, in sewers of
the ordinary construction.
By thus employing short sections of pipe into which the water is successively
turned, I am enabled to utilize the full power of the water main, on the whole
sewer, and with an hydraulic force which must cut up the sediment and clear the
sewer of all loosened material, while a considerable proportion of the gas generated
in the sewers being soluble in water, is taken up, and the pressure in the sewer,
which is the cause of so much sickness and disease in dwelling houses, is
substantially removed.
Figure 2 shows the Invention applied to a short sewer F leading from a
dwelling, to, and connecting with, a main sewer A. This short sewer, has the
pipes e e¹ entering it at different points, provided with the caps c and nozzles d as
in the main sewer, the cleansing principle being the same in each. By the
construction and arrangement of the pipes e e¹ it will be seen that they can be
operated from the same point which may sometimes be very convenient and
desirable.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is:-
--
First. The perforated pipe C, in combination with a water main and sewer
substantially as, and for the purpose, set forth.
Second. The perforated pipe C, provided with the cap c, in combination with
a water main and sewer, substantially as, and for the purpose, set forth.
Third. The perforated pipes D, provided with the nozzles d, in combination
with a water main and sewer, all constructed to operate substantially as, and for
the purpose, herein set forth.
Fourth. The perforated pipes D provided with the nozzles d, in combination
with a water main and a sewer provided with the man-holes E all constructed to
operate substantially as, and for the purpose, set forth.
D111th J
.L 100/
HASELTINE, LAKE & Co.,
Agents for the Applicant.