BURNING SEWER AND IMPURE AIR AND FOR WARMING ROOMS OR OFFICES WHERE APPLICABLE
Year: 1886

page_text: I RICHARD WALTER HELLYER of N° 97 Park Street Grosvenor Square
London do hereby declare the nature of my invention for BURNING SEWER AND
IMPURE AIR AND FOR WARMING ROOMS OR OFFICES WHERE APPLICABLE to be
as follows:-
A small chamber having an inlet and an outlet pipe attached thereto, the said
chamber to be made of metal, terra cotta, or other indestructable material and its
size to be regulated to meet the requirements; the said inlet pipe to communicate
to the sewer, drain, or place where the sewer, or impure air is to be extracted;
attached to the said inlet pipe is to be a service of gas, and an atmosperic burner
or some inflamable liquid and a self acting valve below to protect the gas or liquid
and prevent a down current of air, and over the said inlet pipe a dome, or hood,
fitted to increase the burning power; the said outlet pipe to communicate to a
grating, or ventilating pipe; the said chamber to be enclosed with a portable cover,
or manhole, & fixed over or under ground, the primary object being to collect and
burn, sewer, and impure air from sewers, drains, or places where impure air requires
extracting & prevent unburnt air from escaping as much as possible.

page_text: Sewer and Impure Air Burning Apparatus.
I, RICHARD WALTER HELLYER, of Number 97, Park St, Grosvenor Square,
London, W. Builder, Decorator, and Sanitary Engineer, do hereby declare the
nature of my invention for SEWER AND IMPURE AIR BURNING APPARATUS and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
The primary object of my Invention is to effect the burning, annihilation or
destruction of sewer gases, and impure air arising from other sources or causes.
My said Invention may also be utilised for warming and ventilating purposes.
The accompanying drawing illustrates at Figure 1 my Invention in its primary
application, to the purpose of burning sewer gases.
The device or contrivance according to my Invention comprises a small cham-
ber A with rebated cover having a disc of glass let into the centre to allow of
inspection. Said chamber A is provided with an inlet pipe B which is connected
in the case illustrated, to the inlet air shaft from sewer; though, as will be apparent,
it may be connected to or with any other place from which impure air is to be
extracted. To said chamber A is also adapted an outlet pipe C which allows of a
communication with, or of access to the iron gratings generally known as blow
holes, or to a ventilating shaft or pipe as may be suitable or necessary according to
the conditions under which, and particular purposes for which, my Invention is
intended to be applied.
The chamber A aforesaid would, in practice be made of, say metal, terra cotta,
or other suitable material adapted to withstand the action of great heat and the
capacity of said chamber would be regulated according to the requirements in
each particular case or to the conditions under which my Invention is brought into
requisition.
Into said inlet pipe B, I introduce preferentially, a service of gas by means of
gas tubing as shewn at D which is passed up in a line forming the vertical axis of
the chamber A and of the dome or hood E (mentioned below). Said gas service D
is provided at D¹ with an atmospheric gas burner of any suitable type. A separate
and supplementary burner of pure gas, intended to prevent the possibility of the
atmospheric burner D¹ aforesaid becoming extinguished by accident of any kind
may also in certain cases be provided. The dome or hood E aforesaid rests upon
an inner lid a forming a diaphragm which divides the chamber A into two parts,
but with a central opening immediately over the flames of gas, for the direct
passage of the impure air to be burnt; and so devised and fitted as to increase or
intensify the burning power of the gas issuing from the atmospheric burner at the
foot of the truncated cone, dome or hood E, and thus to produce, by means of a
powerful heat a drawing or extractive power sufficient to relieve sewers, drains,
rooms, or other places, of offensive and dangerous gases, and at the same time to
burn and render same harmless.
As will be seen on reference to the drawing, an inclined shelf-with an
aperture a to allow of surface water entering the sewer-is introduced at G so as
to form a deflector to permit of the passage of the sewer gases in the direction of

page_text: the arrows at H through the pipe B upwards into the chamber A, whence on being
consumed the burnt gases make their exit through the pipe C and upwards to the
"blow holes" aforesaid or to a ventilating shaft or pipe as hereinbefore mentioned.
Provision is made at F by means of an iron cover fixed level with the street, to
allow when required, of the inspection of the apparatus and also of access to the
tap on the gas service pipe f.
Referring to the accompanying drawing, the detached view Fig. 2 shows an
alternative form of burner to that adopted and shown in the general view Fig. 1.
Now by means of the apparatus above described I am enabled to secure, in a
thoroughly efficient and simple manner, the collection and burning of air from
sewers, drains or places where impure air requires to be extracted. Similarly by
the device or contrivance aforesaid I am enabled to ensure the prevention of
unburnt air escaping into the interior of buildings or otherwise where noxious
fumes would be offensive. And, although I have herein before referred to the use
of ordinary illuminating gas as the burning medium, I wish it to be understood
that I do not confine myself thereto, inasmuch as in cases where the high price of
gas would be a drawback, or in other cases-such for instance as would occur
where ordinary gas was not obtainable-liquid hydro carbon or other oils might be
employed, suitable burner or burners being employed for such purpose.
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:-
Firstly-The device or contrivance substantially as herein described and shewn
in the accompanying drawings for the purposes herein set forth.
Secondly:- -As forming portion of, and an essential feature in the device or
contrivance referred to in the preceding claim, the truncated hollow cone, forming
the dome E carried upon the diaphragma of the chamber A as and for the purposes
herein described and set forth.